Saturday, May 9, 2026

Inverting: Entering the Ocean of the Insect World


 Ask the Inverter


Dear Bugeyed Bernie,


You describe inverting as “The joy of observing insects”. Can you elaborate further?


                                                                                The Greatest Show on Earth.



Dear Greatest Show on Earth. You are right; I do describe inverting as "the joy of observing insects," and yes, I can explain what that means for me and what I think it can mean for others like yourself who follow their curiosity.


There is a saying about 'swimming in the shallow end of the pool'. I am not a great swimmer, yet I enjoy water in a pool, a pond, a lake, even the ocean; be it getting my feet wet, walking in waist deep watching fish swim at my feet, immersing beneath the surface imaging myself as a fish, or sitting on shore admiring the beauty of the waters behavior at that moment, how the surrounding habitat - the tall grasses, dunes, trees, shrubs nearby, the sun across the waters surface, how the wind plays with the water - waves, ripples, tidal pools.


Inverting is like entering the ocean of the insect world. This is an immense body. One can enter into the shallow end and be fulfilled there or walk in deeper and deeper to whatever level you wish to explore, learn about, and enjoy - there are no boundaries.


Wildlife text

Think of going to a zoo with no bars. The animals are all in their natural habitat. You can walk up to any of them - if you are careful, slowly approach, and are respectful - look at them closely, take photos of them, and with repeated exposure to them, begin to understand their lifestyle, the habitat requirements needed for them to thrive; you might notice some that no one has reported seeing in your state. Spend enough time there, and you will witness predation,  copulation (hugging too), birth, accidents (falling, bumping into plants), and generational development (life stages, metamorphosis). For this is a zoo not of large animals like lions, tigers, and bears - Oh My - this is a habitat filled with countless, and I do mean countless, invertebrates, particularly insects, and you are now inverting.


At first, most of the animals seem difficult to find. They are small, and they often fly or race away as soon as you spot them. Remember, you were not able to pet the first giraffe you viewed in the no bars zoo, but as you were patient, cautious, slow in your approach, and respectful, you eventually were able to be close enough to pet the giraffe, and maybe you did pet one at least once. 


So it was with the first bumblebee I ever petted. It took many outings, thousands of bee observations, with as many expressions of thanks expressing my gratitude for each individual, all being industrious, hard at work to maintain their species, their families, before I found the courage, knowledge (male Bumblebees do not have stingers), and gentle touch (respect) to approach (without disturbing) and pet a bumblebee. 


Note that the way a bee can show it is being stressed by your approach is to raise one of its legs; raising two legs means it is in greater distress, rolling on its back indicates very high stress, buzzing around your head - well, you can figure that one out - "leave me be, I have work to do". 


Once you become accustomed to ‘seeing’ insects, you start to wonder how you ever missed them. And where can you find them? As close as just outside your home door - in your yard, especially if you have a habitat that supports their life needs.


I could talk for hours about the awe-inspiring observations and the enompanying feelings that have overcome me from observing a multitude of insect behaviors, body patterns and colors, surprises, discoveries, and more that the insect world provided me and awaits you - what Alice found and experienced when she went down the rabbit hole is minuscule compared to inverting in the natural wild world. If insects were the size of animals we typically view in a zoo, we would all be walking around (in our yards, parks, woodlands, fields) with our jaws gaping open and touching the ground - in wonder and awe. 


When I am inverting, be it in our 1-acre yard, or a local park, in a meadow, woodlands, or waters edge, I quickly drop all the to-do list, the distractions, the bouncing balls of thoughts, the worldly problems, and any of my personal concerns - everything else - goes away. I become, as they say, ‘in the moment’ - not by some forced mantra, or conscious decision - it just happens as though I walk through a transformation door as Alice did in her wonderland.


Disclaimer: Though I greatly admire folks who have the aptitude and attitude to learn and remember galaxies of data about a particular insect family, the myriad details differentiating one species from another, I am not that person. Call it staying on shore or in the shallow end of the ocean if you will. Remember, there is an immense ocean in the insect world. Pick your spot, and dive into whatever depth you wish to explore. 


Knowing can be rewarding. Not knowing it all, and being curious to find out for oneself, and to experience that discovery is fulfilling, even addictive. For me, it is all fresh and new with every outing, every walk, every observation, be it a common taxonomy or an uncommon one. I never tire of meeting up with my diverse set of insect friends, being with them, and learning about them. The experience is the circus top - for me.


I don’t consume cakes, drinks, or mushrooms to change my size - to shrink down to a size small enough to pass through the tiny insect door into the garden of insects. I do take photographs of them and enlarge that view (see Bernie’s Favorites).


Viewing the photos on my computer allows me first to revisit each moment in the wild with each individual I observed and to recall what that felt like to me, what was going on with that individual. The enlarged (cropped) image highlights the details of the insect’s anatomy, its body, which opens up another layer of inverting in wonderland. The details are often exquisite, beautiful sometimes, spooky other times (glad I am not a host insect when dragonflies are zooming about). 


The diversity begins to alert you, though inverting is in many ways like birding; there are many, many, many times more insect species than there are bird species. One could observe all or nearly all of the bird species in Vermont with a bit of diligence within a few years. To observe all of the insects in your lifetime, well, you'd better live a very long time, and you'd better plan on spending every minute of your life looking for and at insects, because there are likely over 20,000 species of invertebrates in Vermont, with over 1,300 insect species catalogued. 


Inverting is the new birding!


If you are into treasure hunts, try inverting. In our backyard alone, I have observed and recorded on iNaturalist thirty or so insect species that had not been previously recorded on iNaturalist. I even observed and recorded the first (iNaturalist record) observation of a mock orange scissor bee (Chelostoma philadelphi).


Which brings me to iNaturalist. iNaturalist is a popular, free online social network and mobile application designed to help people identify, document, and share observations of plants, animals, and fungi from around the world. It acts as a community-driven database where users take photos or recordings of wild organisms to contribute to science and conservation efforts. 


This tool, like inverting, has many different levels of opportunity. You can use it as an incentive to get outdoors, to notice more, and to learn about the life forms that we share this planet with. You can use it as your personal journal to record your observations, and to share those observations with others, including scientist who may use some of your observations in their scientific studies. 


Just as people can dive into inverting at many different levels, so to many people use iNaturalist for multiple purposes, including:



Identification and Taxonomy

Learning how an organism fits into biological classification:


  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Class: Insecta
  • Order
  • Family
  • Genus
  • Species


Learning About Insect Life

Once identified, you can explore:


  • Behavior
  • Host plants
  • Nesting or habitat preferences
  • Seasonal activity
  • Ecological role
  • Life history


Building a Personal Nature Journal

iNaturalist creates a searchable digital record of your observations over time.


  • Contributing to Scientific Research
  • Your records may support:
  • Biodiversity mapping
  • Range expansions
  • Climate-related distribution changes
  • Pollinator monitoring
  • Conservation projects
  • Your observations, like some of mine, may become part of scientific research papers.



Exploring Biodiversity

You can examine observations from:


  • Your backyard
  • Your town
  • Vermont
  • Other regions worldwide


Improving Identification Skills

Watching how experts revise or refine IDs is one of the best ways to learn.

You may begin noticing details such as:


  • Wing venation
  • Antenna shape
  • Facial markings
  • Leg structure
  • Host plant association
  • Geographic range



Community Engagement

iNaturalist allows you to:


  • Join projects
  • Participate in BioBlitz events
  • Connect with specialists
  • Compare findings with other observers
  • And perhaps most importantly:
  • Have Fun
  • For many people, iNaturalist transforms a simple walk outdoors into a process of discovery.

Yes indeed, inverting is The Greatest Show on Earth - and as close as your backyard!


- BugeyedBernie,  

Public Relations mgr. for Insects; Promoting the joy of observing Insects


Tuesday, May 5, 2026

Mapping Jericho’s Invertebrates — Volunteers Needed

Jericho has a strong tradition of mapping and documenting its landscape. Now it’s time to extend that effort to the small but essential life around us—our insects and other invertebrates. 

We’re looking for volunteers to help observe and photograph species, as well as landowners willing to allow brief visits to document pollinators and insect–plant interactions on their property.

Jericho naturalists are building a community-driven record of local biodiversity. The town currently ranks 11th in Vermont for species recorded on iNaturalist—let’s push that further. Whether you’re a seasoned observer or just curious, your contributions can directly support conservation, education, and efforts like the Vermont Butterfly Atlas and pollinator protection initiatives.

You can explore background and project details on VTbugEyed:

Jericho’s mapping legacy stretches back centuries—from Benning Wentworth, who drew the town’s original boundaries in 1763, to Ira Allen and Remember Baker, who surveyed it in 1773. Later contributions by H. F. Walling and Lewis Robinson further documented the region. And of course, Wilson Bentley—“Snowflake” Bentley—set a powerful example by carefully recording the natural world around him.

This project follows in that tradition: careful observation, shared knowledge, and a deeper understanding of place.

If you’re interested in helping—by observing, photographing, or hosting access—join the effort and help map the living landscape of Jericho.


Together, let's map out the living landscape of Jericho, from invertebrates to plants, from birds to butterflies; all forms of life, including plants, animals, fungi, bacteria, and chromists.

Reach out to Bernie (bugeyedbernie on iNaturalist) to discuss how you wish to participate. And join the iNaturalist project at https://www.inaturalist.org/projects/jericho-vt-living-landscape.

Tuesday, April 28, 2026

Jericho Vermont Butterflies: Species Not Yet Recorded & How to Help the Vermont Butterfly Atlas

Jericho residents: let’s document our butterflies—together.

Right now, there are butterfly species known from across Vermont that have never been recorded in Jericho. Some may be here, but have not been documented yet. This is a real, local data gap we can close as a community.

By observing and posting butterflies from your yard, road, trail, or field, you can directly strengthen Jericho’s record in the Vermont Butterfly Atlas—a statewide effort tracking species distribution and abundance. Every observation counts. A single clear photo from your backyard could be the first verified record of that species in town.

We are looking for community scientists, naturalists, photographers, families, and anyone who spends time outdoors in Jericho to take part. No special expertise required—just curiosity and a willingness to look closely.

The VCE (Vermont Center for EcoStudies) Butterfly Atlas team is really hurting on surveys in priority blocks right now. Two priority blocks need help in Essex & Underhill (red & green in the picture, they have corners in Jericho). It would be awesome if surveyors were willing to snap photos from those blocks as well. You can find species-to-find lists for those blocks here: Essex & Underhill.  Go to the Butterfly Atlas Block Mapper 

 for greater block map granularity. Then click on the block you are interested in. Then double-click on it again to see the road definition. Zoom in or out as needed.










You can mouse over blocks on the priority block tool online to see the total species foundClick on a block, and on the right side, you get the count, species list, followed by a genus-only list, and the date the data was last updated. 



Three Tables of Data:

1. Below is a list of VT butterfly species not yet documented (via iNaturalist) in Jericho

2. Further below, you’ll also find a full list of all butterfly species recorded across Vermont. Each species includes a VAL (Vermont Atlas of Life) hotlink for quick access to identification details, flight periods, habitat associations, and host plants.

3. The last chart lists the primary and secondary host plants for each butterfly species.

4. SWITCHERS: Massachusetts Butterflies Known to have Switched to a Non-native Host Plant

5. Notes


How You Can Help

  • Focus on Jericho - or elsewhere in Vermont - but why go further when we have so much to enjoy here!
  • Visit sites at least once per month (May–September)
  • Photograph all butterflies observed (even common species)
  • Upload records to eButterfly or iNaturalist
  • Note habitat, behavior, and host plant associations when possible
  • Provide appropriate habitat - host plants for butterflies in your yard.

Jericho has the habitat. The species are out there. What’s missing is the documentation.

Let’s fix that—one observation at a time.


Why This Matters

  • Creates a baseline we—and future residents—will rely on decades from now
  • Supports conservation prioritization and trend analysis
  • Even a single well-documented observation can meaningfully expand what we know about butterflies in Jericho.

Need assistance? If you’re seeing butterflies in your yard but aren’t able to photograph or upload them to iNaturalist, contact Bernie—he can photograph and post observations in your yard so they count toward the Vermont Butterfly Atlas.

-------------------------------------------------------------------------------------------------------------------

And read this from Kent McFarland of Vt Center of EcoStudies: 

Hi folks, Based on a few suggestions, I have some neat additions to the Priority Block Checklist Tool at the VBA2. Here is what's new:

1. Filter by number of species found. Now you can simplify the map by checking on and off the box next to the category of block. Want to see blocks that have no species found? Just check that off and leave the others blank and presto, a map showing just those blocks and the others grayed out. 

2. Download a checklist of species found and not found on a block as PDF and print for your use. This creates a slick one-page checklist with those found already checked off and those yet to be discovered, blank and ready for you to find them! This is going to be a very handy tool for you I think! 

Check out the new tool at the VBA site, among others.

Also: quick tutorial video for the Block Mapper Tool

Enjoy, Kent

-------------------------------------------------------------------------------------------------------------------

1. This first chart is a list of butterflies not yet recorded in Jericho (on iNaturalist). 

Butterflies of Vermont

Flight period in Champlain Valley unless otherwise noted. 

VT Atlas of Life

(Common name — Scientific name)

Flight period

Species Profile

Brush-footed Butterflies (Nymphalidae)



Aphrodite Fritillary — Speyeria aphrodite

June 25 – Aug 20

VAL

Appalachian Eyed Brown — Lethe appalachia

June 15 – Aug 1

VAL

Common Buckeye — Junonia coenia

May-Oct

VAL

Gray Comma — Polygonia progne

Mar-Oct

VAL

Green Comma — Polygonia faunus

Apr-Oct: VT

VAL

Jutta Arctic [Baltic Gray] — Oeneis jutta

May-June: VT

VAL

Meadow Fritillary — Boloria bellona

May 25 – Sept 1

VAL

Red-spotted Purple — Limenitis arthemis astyanax

June 10 – Aug 20

VAL

Regal Fritillary — Speyeria idalia. Regal Fritillary has disappeared from all of New England.

July: VT

VAL

Silvery Checkerspot — Chlosyne nycteis. We would love an effort to find the Silvery Checkerspot, but it looks like they have also disappeared from the region (even though they are up in Montreal).

June-July: VT

VAL

Variegated Fritillary — Euptoieta claudia

July 1 – Oct 1 (migrant)

VAL

Gossamer-winged Butterflies (Lycaenidae)


 

Acadian Hairstreak — Satyrium acadica

June-Aug: VT

VAL

Bog Copper — Lycaena epixanthe Habitat specialists: sandplains and black spruce bogs

June-Aug: VT

VAL

Brown Elfin — Callophrys augustinus

April-June: VT

VAL

Cherry Gall Azure — Celastrina serotina         No one is sure if the Cherry Gall Azure is really a species.

April-June: VT

VAL

Common Blue — Polyommatus icarus

May-Oct: VT

VAL

Coral Hairstreak — Satyrium titus

June-Aug: VT

VAL

Early Hairstreak — Erora laeta

May-Aug: VT

VAL

Edwards' Hairstreak — Satyrium edwardsii         Habitat specialists: sandplains and black spruce bogs

July: VT

VAL

Bog Elfin — Callophrys lanoraieensis Habitat specialists: sandplains and black spruce bogs

May: VT

VAL

Gray Hairstreak — Strymon melinus

May-Oct: VT

VAL

Henry's Elfin — Callophrys polia [Callophrys henrici] Habitat specialists: sandplains and black spruce bogs

Apr-May: VT

VAL

Hickory Hairstreak — Satyrium caryaevorus

June-Aug: VT

VAL

        Juniper Hairstreak — Callophrys grynea

May-Aug

VAL

White-M Hairstreak — Parrhasius m-album

May, July-Sept: VT

VAL

Skippers (Hesperiidae)


 

Black Dash — Euphyes conspicua

July-Aug: VT

VAL

Broad-winged Skipper — Poanes viator

July 1 – Aug 15

VAL

Cobweb Skipper — Hesperia metea

June: VT

VAL

Common Branded Skipper — Hesperia comma

Aug-Sept: VT

VAL

Common Checkered-Skipper — Pyrgus communis

Aug-Oct: VT

VAL

Common Roadside-Skipper — Amblyscirtes vialis

May-July: VT

VAL

Common Sootywing — Pholisora catullus

May-Sept: VT

VAL

Crossline Skipper — Polites origenes

June 20 – Aug 15

VAL

Dreamy Duskywing — Erynnis icelus

May 1 – June 10

VAL

Dusted Skipper — Atrytonopsis hianna

May-June: VT

VAL

Fiery Skipper — Hylephila phyleus

Aug-Sept: VT

VAL

Horace’s Duskywing — Erynnis horatius              Southern (VT) species

May 10 – July 1

VAL

Indian Skipper — Hesperia sassacus

May-July: VT

VAL

Juvenal’s Duskywing — Erynnis juvenalis

May 1 – June 15

VAL

Leonard’s Skipper — Hesperia leonardus

July-Sept: VT

VAL

Little Glassywing — Pompeius verna

May-Aug: VT

VAL

Long-tailed Skipper — Urbanus proteus               Southern (VT) species (migrant)

Sept: VT

VAL

Northern Cloudywing — Thorybes pylades

May 20 – July 1

VAL

Persius Duskywing — Erynnis persius. Persius Duskywing has disappeared from all of New England.


VAL

Sleepy Duskywing — Erynnis brizo                Southern (VT) species 

June: VT

VAL

Southern Cloudywing — Thorybes bathyllus

June 1 – Aug 1

VAL

Two-spotted Skipper — Euphyes bimacula

June-July: VT

VAL

Swallowtails (Papilionidae)


 

Spicebush Swallowtail — Papilio troilus

June-Oct: VT

VAL

Whites & Sulphurs (Pieridae)


 

Cloudless Sulphur — Phoebis sennae

May-Aug: Vt

VAL

        Little Yellow — Pyrisitia lisa

June-Sept: Vt

VAL

Mustard White — Pieris oleracea

June: VT

VAL

Orange Sulphur — Colias eurytheme

May-Dec: VT

VAL

Pink-edged Sulphur — Colias interior

May-Sept: VT

VAL


2. This list is a comprehensive list of butterflies recorded in Vermont, based primarily on the Vermont Center for Ecostudies / Vermont Butterfly Atlas species accounts and includes habitat codes.

Butterflies of Vermont

Flight period in Champlain Valley unless otherwise noted. 

VT Atlas of Life

Habitat Codes

Habitat Codes

(Common name — Scientific name)

Flight period

Species Profile

Core System

Secondary System

Brush-footed Butterflies (Nymphalidae)





        American Lady — Vanessa virginiensis


VAL

DRY

AG

      American Red Admiral — Vanessa atalanta rubria

April 10 – Oct 20

VAL

URB

FM

        American Snout — Libytheana carinenta

July 15 – Oct 10 (irregular)

VAL



Aphrodite Fritillary — Speyeria aphrodite

June 25 – Aug 20

VAL

DRY

MH

Appalachian Eyed Brown — Lethe appalachia

June 15 – Aug 1

VAL

WM

FM

Atlantis Fritillary — Speyeria atlantis


VAL

MH

WM

Baltimore Checkerspot — Euphydryas phaeton

June 10 – July 10

VAL

WM

FM

Common Buckeye — Junonia coenia

May-Oct

VAL



Common Ringlet — Coenonympha california


VAL



Common Wood-Nymph — Cercyonis pegala

June 25 – Aug 20

VAL

DRY

AG

Compton Tortoiseshell — Nymphalis l-album ssp. j-album

April 1 – June 15

VAL

MH

FM

Eastern Comma — Polygonia comma

Eastern Comma — April 1 – Oct 20

VAL

SHR

URB

Eyed Brown — Lethe eurydice

June 25 – Aug 10

VAL

WM

SHR

Gray Comma — Polygonia progne

Mar-Oct

VAL

MH

SHR

Great Spangled Fritillary — Speyeria cybele


VAL

DRY

AG

Green Comma — Polygonia faunus.  (cool forests)

Apr-Oct: VT

VAL

MH

WM

Hackberry Emperor — Asterocampa celtis

June 20 – Aug 15

VAL

URB

FM

Harris’s Checkerspot — Chlosyne harrisii


VAL

AG

DRY

Jutta Arctic [Baltic Gray] — Oeneis jutta.  (Peatland)

May-June: VT

VAL

WM

None

Little Wood Satyr — Megisto cymela

May 25 – July 5

VAL

MH

SHR

Meadow Fritillary — Boloria bellona

May 25 – Sept 1

VAL

AG

DRY

Milbert’s Tortoiseshell — Aglais milberti

April 10 – Oct 10

VAL

URB

WM

Monarch — Danaus plexippus


VAL

WM

AG, URB

Mourning Cloak — Nymphalis antiopa

March 25 – Oct 15

VAL

FM

URB

Northern Crescent — Phyciodes cocyta

May 10 – Sept 15

VAL

AG

DRY

Northern Pearly-eye — Lethe anthedon


VAL

MH

SHR

Painted Lady — Vanessa cardui

May 1 – Oct 10

VAL

AG

DRY

Pearl Crescent — Phyciodes tharos

May 1 – Sept 30

VAL

AG

URB

Question Mark — Polygonia interrogationis

April 10 – Oct 25

VAL

URB

FM

Red Admiral — Vanessa atalanta

April 10 – Oct 20

VAL

URB

FM

Red-spotted Purple — Limenitis arthemis astyanax

June 10 – Aug 20

VAL

CPF

SHR

Regal Fritillary — Speyeria idalia. Regal Fritillary has disappeared from all of New England. DRY prairie analog

July: VT

VAL

DRY

none

Silver-bordered Fritillary — Boloria myrina

May 20 – Aug 10

VAL

WM

SHR

Silvery Checkerspot — Chlosyne nycteis. We would love an effort to find the Silvery Checkerspot, but it looks like they have also disappeared from the region (even though they are up in Montreal).

June-July: VT

VAL

DRY

AG

Tawny Emperor — Asterocampa clyton (rare)

June 20 – Aug 10

VAL

URB

FM

Variegated Fritillary — Euptoieta claudia

July 1 – Oct 1 (migrant)

VAL

AG

URB

Viceroy (Eastern Viceroy)— Limenitis archippus

June 1 – Aug 15

VAL

WM

FM

White Admiral — Limenitis arthemis arthemis

June 15 – Aug 1

VAL

MH

FM

Gossamer-winged Butterflies (Lycaenidae)


 



Acadian Hairstreak — Satyrium acadica.  (willow thickets)

June-Aug: VT

VAL

WM

FM

American Copper — Lycaena hypophlaeas


VAL

DRY

AG

Banded Hairstreak — Satyrium calanus


VAL

CPF

SHR

Bog Copper — Lycaena epixanthe Habitat specialists: sandplains and black spruce bogs (acid bog/fen)

June-Aug: VT

VAL

WM

none

Bronze Copper — Lycaena hyllus


VAL

WM

FM

Brown Elfin — Callophrys augustinus

April-June: VT

VAL

SHR

SPF

Cherry Gall Azure — Celastrina serotina. No one is sure if the Cherry Gall Azure is really a species.

April-June: VT

VAL

CPF

SHR

Common Blue — Polyommatus icarus

May-Oct: VT

VAL

AG

URB

Coral Hairstreak — Satyrium titus

June-Aug: VT

VAL

SHR

CPF

Early Hairstreak — Erora laeta

May-Aug: VT

VAL

MH

CPF

Eastern Pine Elfin — Callophrys niphon


VAL

SPF

DRY

Eastern Tailed-Blue — Cupido comyntas


VAL

AG

URB

Edwards' Hairstreak — Satyrium edwardsii         Habitat specialists: sandplains and black spruce bogs

July: VT

VAL

SPF

DRY

Bog Elfin — Callophrys lanoraieensis Habitat specialists: sandplains and black spruce bogs

May: VT

VAL



Frosted Elfin — (Callophrys irusHabitat specialists: sandplains and black spruce bogs



SPF

DRY

Gray Hairstreak — Strymon melinus

May-Oct: VT

VAL

URB

AG

         Harvester — Feniseca tarquinius





Henry's Elfin — Callophrys polia [Callophrys henrici] Habitat specialists: sandplains and black spruce bogs

Apr-May: VT

VAL

SHR

MH

Hickory Hairstreak — Satyrium caryaevorus

June-Aug: VT

VAL

CPF

MH

        Juniper Hairstreak — Callophrys grynea

May-Aug

VAL

DRY

URB

Northern Spring Azure — Celastrina lucia


VAL



Silvery Blue — Glaucopsyche lygdamus


VAL

SHR

AG

Striped Hairstreak — Satyrium liparops


VAL

SHR

CPF

Summer Azure — Celastrina neglecta


VAL

SHR

FM

White-M Hairstreak — Parrhasius m-album

May, July-Sept: VT

VAL

CPF

MH

Skippers (Hesperiidae)


 



Arctic Skipper — Carterocephalus mandan


VAL



Black Dash — Euphyes conspicua (rare wetland)

July-Aug: VT

VAL

WM

None

Broad-winged Skipper — Poanes viator

July 1 – Aug 15

VAL

WM

SHR

Cobweb Skipper — Hesperia metea

June: VT

VAL



Common Branded Skipper — Hesperia comma

Aug-Sept: VT

VAL



Common Checkered-Skipper — Pyrgus communis

Aug-Oct: VT

VAL



Common Roadside-Skipper — Amblyscirtes vialis

May-July: VT

VAL



Common Sootywing — Pholisora catullus

May-Sept: VT

VAL



Crossline Skipper — Polites origenes

June 20 – Aug 15

VAL

DRY

AG

Delaware Skipper — Anatrytone logan


VAL



Dion Skipper — Euphyes dion


VAL



Dreamy Duskywing — Erynnis icelus

May 1 – June 10

VAL

WM

FM

Dun Skipper — Euphyes vestris


VAL

MH

WM

Dusted Skipper — Atrytonopsis hianna

May-June: VT

VAL



European Skipper — Thymelicus lineola

June 15 – July 25

VAL

AG

DRY

Fiery Skipper — Hylephila phyleus

Aug-Sept: VT

VAL

URB

AG

Hobomok Skipper — Poanes hobomok


VAL

MH

SHR

Horace’s Duskywing — Erynnis horatius              Southern (VT) species

May 10 – July 1

VAL

CPF

DRY

Indian Skipper — Hesperia sassacus

May-July: VT

VAL

DRY

SPF

Juvenal’s Duskywing — Erynnis juvenalis

May 1 – June 15

VAL

CPF

DRY

Least Skipper — Ancyloxypha numitor

June 10 – Aug 25

VAL

WM

AG

Leonard’s Skipper — Hesperia leonardus (Late Season)

July-Sept: VT

VAL

DRY

AG

Little Glassywing — Pompeius verna

May-Aug: VT

VAL



Long Dash Skipper — Polites mystic

June 20 – Aug 15

VAL

WM

AG

Long-tailed Skipper — Urbanus proteus               Southern (VT) species (migrant)

Sept: VT

VAL

URB

AG

Mulberry Wing — Poanes massasoit

June 25 – July 25

VAL

WM

None

Northern Broken-Dash — Polites egeremet

June 25 – Aug 10

VAL

AG

DRY

Northern Cloudywing — Thorybes pylades

May 20 – July 1

VAL

SHR

SHR

Peck’s Skipper — Polites peckius

May 20 – Sept 20

VAL

AG

URB

        Pepper and Salt Skipper — Amblyscirtes hegon


VAL



Persius Duskywing — Erynnis persius. Persius Duskywing has disappeared from all of New England.


VAL

SPF

DRY

[Eastern] Silver-spotted Skipper — Epargyreus clarus


VAL

SHR

AG

Sleepy Duskywing — Erynnis brizo                Southern (VT) species 

June: VT

VAL

CPF

DRY

Southern Cloudywing — Thorybes bathyllus

June 1 – Aug 1

VAL

SHR

AG

Tawny-edged Skipper — Polites themistocles

May 20 – Aug 10

VAL

AG

DRY

Two-spotted Skipper — Euphyes bimacula.        (rare wetland)

June-July: VT

VAL

WM

None

Wild Indigo Duskywing — Erynnis baptisiae

June 1 – Aug 10 (sandplain)

VAL

SPF

DRY

Swallowtails (Papilionidae)


 



Black Swallowtail — Papilio polyxenes


VAL

AG

WM, URB

      Canadian Tiger Swallowtail — Papilio canadensis


VAL

MH, FM

SHR

Eastern Tiger Swallowtail — Papilio glaucus


VAL

CPF, FM

AG, URB

Eastern Giant Swallowtail — Heraclides cresphontes


VAL

SHR

URB, AG

Mid Summer Swallowtail — Papilio solstitius


VAL



Spicebush Swallowtail — Papilio troilus

June-Oct: VT

VAL

FM

SHR

Whites & Sulphurs (Pieridae)


 



Cabbage White — Pieris rapae


VAL

URB, AG

DRY

Clouded Sulphur — Colias philodice


VAL

AG

DRY

Cloudless Sulphur — Phoebis sennae

May-Aug: Vt

VAL

URB

AG

        Little Yellow — Pyrisitia lisa

June-Sept: Vt

VAL

URB

AG

Mustard White — Pieris oleracea

June: VT

VAL

MH

FM

Orange Sulphur — Colias eurytheme

May-Dec: VT

VAL

AG

DRY

Pink-edged Sulphur — Colias interior. (bog margins, north valley edge)

May-Sept: VT

VAL

SPF

AG

West Virginia White — Pieris virginiensis


VAL

MH

CPF


Habitat Codes (Champlain Valley – VT Biophysical Alignment)

Core Valley Systems

  • CPF – Clayplain Forest (oak–hickory, clay soils)
  • SPF – Sandplain Forest / Barrens (pitch pine–scrub oak)
  • WM – Wet Meadow / Marsh / Fen
  • FM – Floodplain Forest (silver maple–cottonwood)
  • AG – Agricultural / Old Field / Hedgerow
  • URB – Developed / roadside/ruderal
  • OPW – Open Water edge/lakeshore

Secondary / Transitional

  • MH – Mesic Hardwood Forest
  • SHR – Shrubland/thicket / early succession
  • DRY – Dry meadow / sandy grassland

Highest diversity systems in Champlain Valley:
AG (agriculture/old field) → most species richness
WM (wet meadow/wetland) → highest specialization
CPF (oak systems) → critical for hairstreaks + duskywings

Most overlooked but critical:
graminoid systems (WM + DRY grasses) → supports most skippers


3. Below is a comprehensive list of butterflies recorded in Vermont, as well as their primary and secondary host plants*. 
*Scientifically grounded but not citation-resolved line-by-line

Butterflies of Vermont



(Common name — Scientific name)

Primary Host plant(s)

Secondary Host plant(s)

Brush-footed Butterflies (Nymphalidae)



        American Lady — Vanessa virginiensis

P: Antennaria spp. (pussytoes)

S: Everlasting (Gnaphalium)

      American Red Admiral — Vanessa atalanta rubria

P: Urtica dioica (stinging nettle)

S: Boehmeria cylindrica, Parietaria spp.

        American Snout — Libytheana carinenta

P: Celtis spp.

S: none significant

Aphrodite Fritillary — Speyeria aphrodite

P: Viola spp.

S: none significant

Appalachian Eyed Brown — Lethe appalachia

P: Carex spp.

S: wet meadow grasses

Atlantis Fritillary — Speyeria atlantis

P: Viola spp.

S: none significant

Baltimore Checkerspot — Euphydryas phaeton

P: Chelone glabra (turtlehead)

S: Plantago spp. (later instars only)

Common Buckeye — Junonia coenia

P: Plantago lanceolata (plantain), Mimulus spp.

S: Gerardia (Agalinis), Linaria, Verbena

Common Ringlet — Coenonympha california

P: Poaceae (fine grasses): Festuca, Poa

S: sedges (Carex spp.)

Common Wood-Nymph — Cercyonis pegala

P: Poaceae (tall grasses): Andropogon, Panicum

S: Carex spp.

Compton Tortoiseshell — Nymphalis l-album ssp. j-album

P: Salix spp., Betula spp.

S: Populus spp.

Eastern Comma — Polygonia comma

P: Humulus lupulus (hops)

S: Urtica dioica

Eyed Brown — Lethe eurydice

P: Carex spp. (sedges)

S: wetland grasses

Gray Comma — Polygonia progne

P: Ribes spp. (currants, gooseberries)

S: Betula spp., Ulmus spp.

Great Spangled Fritillary — Speyeria cybele

P: Viola spp. (violets)

S: none significant

Green Comma — Polygonia faunus

P: Ribes spp.

S: Salix spp., Betula spp.

Hackberry Emperor — Asterocampa celtis

P: Celtis occidentalis (hackberry)

S: Celtis tenuifolia

Harris’s Checkerspot — Chlosyne harrisii

P: Asteraceae: Aster (Symphyotrichum) spp.

S: Solidago spp. (goldenrods)

Jutta Arctic [Baltic Gray] — Oeneis jutta

P: Carex spp. (sedges)

S: cotton-grasses (Eriophorum spp.)

Little Wood Satyr — Megisto cymela

P: Poaceae (forest grasses): Dichanthelium, Poa

S: Carex spp. (sedges)

Meadow Fritillary — Boloria bellona

P: Viola spp.

S: none significant

Milbert’s Tortoiseshell — Aglais milberti

P: Urtica dioica (Nettles specialist)

S: none significant

Monarch — Danaus plexippus

P: Asclepias spp. (milkweeds): A. syriaca, A. incarnata, A. tuberosa

S: occasionally Cynanchum (dog-strangling vine; poor survival)

Mourning Cloak — Nymphalis antiopa

P: Salix spp., Populus spp.

S: Ulmus spp., Betula spp.

Northern Crescent — Phyciodes cocyta

P: Asteraceae (native asters)

S: similar to above

Northern Pearly-eye — Lethe anthedon

P: Poaceae (shade grasses): Leersia, Elymus

S: sedges

Painted Lady — Vanessa cardui

P: Asteraceae (thistles, especially Cirsium)

S: Malva, Borago

Pearl Crescent — Phyciodes tharos

P: Asteraceae: Symphyotrichum spp., Erigeron spp.

S: wide range within Aster family

Question Mark — Polygonia interrogationis

P: Ulmus spp. (elm)

S: Celtis occidentalis, Urtica

Red Admiral — Vanessa atalanta

P: Urtica dioica (stinging nettle)

S: Boehmeria cylindrica

Red-spotted Purple — Limenitis arthemis astyanax

P: Prunus serotina (black cherry)

S: other Prunus spp.

Regal Fritillary — Speyeria idalia. Regal Fritillary has disappeared from all of New England.

P: Viola spp. (violets)

S: none significant

Silver-bordered Fritillary — Boloria myrina

P: Viola spp.

S: none significant

Silvery Checkerspot — Chlosyne nycteis. We would love an effort to find the Silvery Checkerspot, but it looks like they have also disappeared from the region (even though they are up in Montreal).

P: Asteraceae: Helianthus, Rudbeckia, Verbesina

S: other composites

Tawny Emperor — Asterocampa clyton

P: Celtis occidentalis

S: same as above

Variegated Fritillary — Euptoieta claudia

P: Passiflora spp. (not native in VT)

S: Viola spp., Linum, Portulaca

Viceroy (Eastern Viceroy)— Limenitis archippus

P: Salix spp. (willow)

S: Populus spp.

White Admiral — Limenitis arthemis arthemis

P: Betula spp., Populus spp.

S: Salix spp.

Gossamer-winged Butterflies (Lycaenidae)



Acadian Hairstreak — Satyrium acadica

P: Salix spp. (willows)

S: Populus spp.

American Copper — Lycaena hypophlaeas

P: Rumex acetosella (sheep sorrel)

S: other Rumex spp.

Banded Hairstreak — Satyrium calanus

P: Quercus spp. (oak)

S: Juglans, Carya

Bog Copper — Lycaena epixanthe Habitat specialists: sandplains and black spruce bogs

P: Vaccinium oxycoccos (small cranberry)

S: Vaccinium macrocarpon

Bronze Copper — Lycaena hyllus

P: Rumex spp. (dock)

S: Polygonum spp.

Brown Elfin — Callophrys augustinus

P: Vaccinium spp. (blueberry, huckleberry)

S: Kalmia, Arctostaphylos (rare VT overlap)

Cherry Gall Azure — Celastrina serotina                 No one is sure if the Cherry Gall Azure is really a species.

P: Prunus serotina (black cherry; via galls/flower associations)

S: Prunus spp., possibly Crataegus

Common Blue — Polyommatus icarus

P: Trifolium spp. (clovers)

S: Lotus corniculatus, Medicago spp.

Coral Hairstreak — Satyrium titus

P: Prunus spp. (cherry, plum)

S: Crataegus (hawthorn)

Early Hairstreak — Erora laeta

P: Fagus grandifolia (American beech)

S: Quercus spp.

Eastern Pine Elfin — Callophrys niphon

P: Pinus strobus (white pine)

S: other Pinus spp.

Eastern Tailed-Blue — Cupido comyntas

P: Fabaceae: Trifolium spp., Vicia spp.

S: Medicago spp.

Edwards' Hairstreak — Satyrium edwardsii        Habitat specialists: sandplains and black spruce bogs

P: Quercus spp. (especially scrub oak in sandplain systems)

S: chestnut sprouts historically

Bog Elfin — Callophrys lanoraieensis Habitat specialists: sandplains and black spruce bogs

 


Gray Hairstreak — Strymon melinus

P: Malvaceae, Fabaceae: Trifolium, Lespedeza, Helianthus

S: extremely broad generalist

         Harvester — Feniseca tarquinius

P: aphids (e.g., Pemphigus spp., Prociphilus spp.) only carnivorous butterfly in North America

 S: associated host plants of aphids: Alnus spp. (alder), Fagus, Hamamelis

Henry's Elfin — Callophrys polia [Callophrys henrici] Habitat specialists: sandplains and black spruce bogs

P: Vaccinium spp., Arctostaphylos uva-ursi

S: various Ericaceae shrubs

Hickory Hairstreak — Satyrium caryaevorus

P: Carya spp. (hickory)

S: Juglans spp.

        Juniper Hairstreak — Callophrys grynea

P: Juniperus virginiana (eastern red cedar)

S: other Cupressaceae (ornamental junipers)

Northern Spring Azure — Celastrina lucia

P: Cornus spp. (dogwood), Viburnum spp., Prunus spp.

S: Amelanchier spp., Rhamnus

Silvery Blue — Glaucopsyche lygdamus

P: Vicia spp., Lathyrus spp.

S: other legumes

Striped Hairstreak — Satyrium liparops

P: Prunus spp.

S: Crataegus, Amelanchier

Summer Azure — Celastrina neglecta

P: Viburnum spp., Cornus spp.

S: Aralia, dogwoods

White-M Hairstreak — Parrhasius m-album

P: Quercus spp. (oak)

S: Castanea dentata (historic), Chinquapin spp.

Skippers (Hesperiidae)



Arctic Skipper — Carterocephalus mandan

P: Poaceae (cool-season grasses): Calamagrostis, Poa

S: sedges occasionally

Black Dash — Euphyes conspicua

P: Carex spp. (sedges)

S: wetland grasses

Broad-winged Skipper — Poanes viator

P: Carex spp. (sedges)

S: wetland grasses

Cobweb Skipper — Hesperia metea

P: Schizachyrium scoparium (little bluestem)

S: other bunchgrasses

Common Branded Skipper — Hesperia comma

P: Festuca spp. (fine grasses)

S: other Poaceae

Common Checkered-Skipper — Pyrgus communis

P: Malvaceae: Sida, Malva

S: Abutilon spp.

Common Roadside-Skipper — Amblyscirtes vialis

P: Poaceae: Poa, Panicum

S: woodland grasses

Common Sootywing — Pholisora catullus

P: Chenopodiaceae / Amaranthaceae: Chenopodium, Amaranthus

S: Atriplex

Crossline Skipper — Polites origenes

P: Poaceae: Andropogon, Panicum

S: other grasses

Delaware Skipper — Anatrytone logan

P: Andropogon gerardii (big bluestem)

S: other prairie grasses

Dion Skipper — Euphyes dion

P: Carex lacustris, Carex stricta

S: other large sedges

Dreamy Duskywing — Erynnis icelus

P: Salix spp. (willow)

S: Populus spp.

Dun Skipper — Euphyes vestris

P: Poaceae: Carex (frequent), Poa

S: mixed graminoids

Dusted Skipper — Atrytonopsis hianna

P: Schizachyrium scoparium

S: other dry-site grasses

European Skipper — Thymelicus lineola

P: pasture grasses: Phleum pratense, Poa

S: other introduced grasses

Fiery Skipper — Hylephila phyleus

P: lawn grasses: Cynodon, Paspalum

S: various Poaceae

Hobomok Skipper — Poanes hobomok

P: Poaceae: Poa pratensis, Bromus

S: woodland grasses

Horace’s Duskywing — Erynnis horatius              Southern (VT) species

P: Quercus spp.

S: none significant

Indian Skipper — Hesperia sassacus

P: Danthonia spicata (poverty grass)

S: other dry grasses

Juvenal’s Duskywing — Erynnis juvenalis

P: Quercus spp. (oak)

S: none significant

Least Skipper — Ancyloxypha numitor

P: wetland grasses: Poa, Leersia

S: Carex spp.

Leonard’s Skipper — Hesperia leonardus

P: Schizachyrium scoparium

S: Andropogon spp.

Little Glassywing — Pompeius verna

P: Panicum spp.

S: other grasses

Long Dash Skipper — Polites mystic

P: Poaceae: Panicum, Leersia

S: sedges occasionally

Long-tailed Skipper — Urbanus proteus               Southern (VT) species (migrant)

P: Fabaceae: Phaseolus, Desmodium

S: other legumes

Mulberry Wing — Poanes massasoit

P: Carex spp.

S: none significant

Northern Broken-Dash — Polites egeremet

P: Panicum spp.

S: other grasses

Northern Cloudywing — Thorybes pylades

P: Fabaceae: Desmodium, Baptisia

S: other legumes

Peck’s Skipper — Polites peckius

P: Poaceae: Poa pratensis, Festuca

S: other turf grasses

        Pepper and Salt Skipper — Amblyscirtes hegon

P: woodland grasses: Leersia, Panicum

S: Poaceae

Persius Duskywing — Erynnis persius. Persius Duskywing has disappeared from all of New England.

P: Fabaceae: Lupinus perennis, Baptisia tinctoria

S: other legumes

[Eastern] Silver-spotted Skipper — Epargyreus clarus

P: Fabaceae: Robinia pseudoacacia, Desmodium

S: Wisteria, other legumes

Sleepy Duskywing — Erynnis brizo                Southern (VT) species 

P: Quercus spp.

S: none significant

Southern Cloudywing — Thorybes bathyllus

P: Fabaceae (Desmodium, Clitoria)

S: various legumes

Tawny-edged Skipper — Polites themistocles

P: Poaceae: Poa, Agrostis

S: various grasses

Two-spotted Skipper — Euphyes bimacula

P: Carex spp. (wetland sedges)

S: none significant

Wild Indigo Duskywing — Erynnis baptisiae

P: Baptisia tinctoria

S: Lupinus perennis

Swallowtails (Papilionidae)



Black Swallowtail — Papilio polyxenes

P: Apiaceae: Zizia aurea (golden alexanders), Daucus carota (wild carrot), Angelica spp.

S: Parsley, dill, fennel (non-native but used)

      Canadian Tiger Swallowtail — Papilio canadensis

P: Populus spp. (aspen, poplar), Betula spp. (birch).

S: Salix spp. (willow), Prunus spp.

Eastern Tiger Swallowtail — Papilio glaucus

P: Prunus serotina (black cherry), Fraxinus spp. (ash).

S: Liriodendron tulipifera, Betula, Magnolia, Salix

Eastern Giant Swallowtail — Heraclides cresphontes

P: Prickly ash (Zanthoxylum americanum)

S: Hop tree (Ptelea trifoliata), Citrus (non-native in VT gardens)

Mid Summer Swallowtail — Papilio solstitius

P: Prunus spp., Fraxinus spp.

S: Betula, Salix

Spicebush Swallowtail — Papilio troilus

P: Lindera benzoin (spicebush)

S: Sassafras albidum

Whites & Sulphurs (Pieridae)



Cabbage White — Pieris rapae

P: Brassicaceae (wide range): wild mustard, cabbage, broccoli, garlic mustard (invasive host use)


Clouded Sulphur — Colias philodice

P: Trifolium spp. (clovers)

S: Medicago sativa (alfalfa), other Fabaceae

Cloudless Sulphur — Phoebis sennae

P: Senna spp. (not native in VT; host in migratory spillover contexts)


        Little Yellow — Pyrisitia lisa

P: Senna spp.

S: Cassia spp.

Mustard White — Pieris oleracea

P: Cardamine diphylla, Cardamine pensylvanica

S: Arabis spp.

Orange Sulphur — Colias eurytheme

P: Medicago sativa (alfalfa)

S: Trifolium, Melilotus (sweet clover)

Pink-edged Sulphur — Colias interior

P: Vaccinium spp. (blueberries)

S: Gaylussacia (huckleberries)

West Virginia White — Pieris virginiensis

P: Toothwort (Cardamine concatenata)

S: occasionally invasive garlic mustard (ecological trap risk)



Additional resources:

4.  SWITCHERS: Massachusetts Butterflies Known to have Switched to a Non-native Host Plant

in addition to, or instead of, the original host  

Species Non-Native Host(s) Presumed Native Host(s) in Massachusetts
Black Swallowtail Queen Anne's Lace, Parsley, Dill, Fennel, Carrots **Sium spp. Cicuta spp. 
Giant SwallowtailCitrus spp. ;Ruta graveolensZanthoxylum americanum
Mustard Whitegarden and weedy crucifers**; Cardamine pratensis var. pratensisCardamine diphylla, concatenata
Clouded SulphurClovers, e.g. Medicago sativa  ** 
Orange SulphurAlfalfa  
American CopperSheep Sorrel, Curly Dock, Garden Sorrel  **(none- butterfly probably not native)
Bronze CopperCurly Dock (Rumex crispus)  **Great Water Dock (R. orbiculatus) and others
Henry's Elfin

 

BuckthornsVacciniumNemopanthus mucronatus; poss. other hollies on Cape Cod
Gray HairstreakTrifolium repens, Melilotis, Malva spp. , Humulus**Lespedeza spp.;   Desmodium spp.
Eastern Tailed-BlueRabbit's Foot Clover ** 
Silvery Blue (Northern ssp.)Cow Vetch; Crown Vetchunknown
Baltimore CheckerspotLance-leaved PlantainChelone glabra; switch in 1980's
Question MarkStinging Nettle, Hops **Elm, hackberry, false nettle
Eastern CommaStinging Nettle, Hops **Elm, wood-nettle (Laportea)
Gray Commacultivated Ribes spp. **native Ribes spp.
Milbert's TortoiseshellStinging Nettle (Urtica dioica)**Urtica gracilis
American LadyEchinops ritroAnaphalis; Antennaria, Gnaphalium 
Red AdmiralStinging Nettle (Urtica dioica) **Wood-nettle (Laportea); Boehmeria
Common BuckeyeLance-leaved Plantain** ;              Butter-and-Eggs (Linaria vulgaris)Purple Gerardia (Agalinis purpurea); other gerardias
Common RingletKentucky bluegrass (Poa pratensis)Stipa spp.
Southern Cloudywingrecently found on red cloverDesmodium  spp; Lespedeza spp.
Northern Cloudywingred and white clovers, vetches  **Desmodium spp.; Lespedeza spp.
Wild Indigo DuskywingCrown Vetch  (Coronilla varia)Baptisia tinctoria
Common Checkered-SkipperCommon Malva (Malva neglecta)**none
Common SootywingChenopodium album  **Chenopodium +Amaranthus spp.
Silver-spotted SkipperRobinia pseudacadia (not  native to Mass.)**Apios americana; Amphicarpaea bracteata
Peck's SkipperKentucky Bluegrass (Poa pratensis)**Leersia oryzoides; Little Bluestem
Tawny-edged SkipperKentucky Bluegrass (Poa pratensis)Schizachyrium & Panicum grasses
Broad-winged SkipperPhragmites australis (native in part)Zizania  aquatica  (wild rice)

                                                                    **=known by 1900 to be using non-natives

       Note 1: "Native" means "reported to have been present in Massachusetts before the arrival of European settlers."         

Note 2:  There are few rigorous studies of how often a species’ eggs/larvae are found on one host rather than another in nature.  Historical authorities such as Scudder reported what the most widely used host plants were thought to be, drawing on both field observations and laboratory rearings.. Today’s host plant studies usually distinguish between what a species will accept in confined laboratory conditions and what it uses in the wild, and how well it thrives on a particular host. It is also now more clear that a species’ hosts in nature may differ a great deal according to locality.

5. Notes

CRITICAL ECOLOGICAL INSIGHTS


1. Graminoid System = Hidden Majority

A large portion of Vermont butterflies (especially skippers + satyrs) depend on:

  • Poaceae (grasses)
  • Carex (sedges)

These habitats are often:

  • undervalued
  • mowed too early
  • or misclassified as “low diversity”

 In reality: essential butterfly infrastructure


2. Three Keystone Plant Systems in Vermont

A. Woody Plants

  • Quercus, Salix, Prunus, Populus

 support the highest diversity overall

B. Herbaceous Specialists

  • Viola, Asclepias, Chelone

 support conservation-priority butterflies

C. Graminoids

  • Poaceae + Carex

 support the highest number of skipper species


3. Sandplain Specialists (Highest Conservation Priority)

  • Frosted Elfin  Lupinus perennis
  • Wild Indigo Duskywing  Baptisia tinctoria
  • Edwards’ Hairstreak  scrub oak

 confined to SPF (Sandplain Forest)

 among the most vulnerable systems in VT


4. Wetland Dependency Cluster

Strong reliance on:

  • Carex
  • Chelone
  • Salix

 supports:

  • Baltimore Checkerspot
  • Eyed Brown
  • Broad-winged Skipper


5. Generalist vs Specialist Gradient

  • Specialists (high risk):
  • Baltimore Checkerspot
  • Frosted Elfin
  • mulberry wing skippers
  • Generalists (resilient):
  • Cabbage White
  • Eastern Tailed-Blue
  • Peck’s Skipper



KEY ECOLOGICAL PATTERNS 

1. Woody plant dominance

~60–70% of Vermont butterflies depend on:

  • Quercus, Prunus, Salix, Populus, Betula

2. Herbaceous specialists

Critical conservation plants:

  • Viola  fritillaries
  • Asclepias  Monarch
  • Cardamine  Pieris whites
  • Lupinus  Frosted Elfin

3. Wetland dependency

  • Chelone, Salix, Carex  Baltimore Checkerspot + skippers

4. Generalist feeders dominate abundance

  • Fabaceae + Asteraceae = majority of common species



Most important host genera in Vermont:

  • Viola (violets)  fritillaries
  • Salix (willows)  many early species
  • Poaceae (grasses)  skippers + satyrs
  • Fabaceae (legumes)  sulphurs, blues
  • Urtica (nettles)  anglewings, admirals

Highest conservation leverage comes from planting:

  • Native violets
  • Willows
  • Native grasses
  • Milkweed


IMPORTANT STRUCTURAL TAKEAWAYS

1. Violet dependency cluster

A major guild:

  • All fritillaries  Viola spp.
  • Conservation implication: violets = high-leverage planting target


2. Wetland obligate system

  • Chelone glabra  Baltimore Checkerspot
  • Loss of turtlehead = local extirpation risk


3. Woody floodplain corridor system

  • Salix / Populus / Betula support:
  • Mourning Cloak
  • Viceroy
  • Compton Tortoiseshell
  • White Admiral


4. Nettle specialists (undervalued)

  • Red Admiral
  • Milbert’s Tortoiseshell

 Urtica patches are ecologically valuable, not weeds


5. Hackberry expansion signal

  • Hackberry Emperor + Tawny Emperor

 track Celtis spread in Champlain Valley



FINAL NOTES 

  • Aphid-feeding exception:
  • Feniseca tarquinius  only carnivorous butterfly in North America
  • Strong sedge dependency cluster:
  • EuphyesOeneisLethe  wetlands = critical habitat
  • Sandplain specialists present:
  • Atrytonopsis hiannaErynnis persiusCallophrys irus(earlier section)
  • Migratory layer included:
  • Urbanus proteusPyrisitia lisaHylephila phyleus


Key Observations (Champlain Valley)

  • Season length: ~March 25  Oct 30
  • Peak diversity window: June 20 – Aug 1 (~80% of species active)