American dagger (Acronicta americana) caterpillar. Saugerties, NY.
California sister (Adelpha californica). Yosemite Falls, Yosemite Park, CA.
Eight-spotted forester (Alypia octomaculata). Lake Mohonk, New Paltz, NY.
Copper underwing (Amphipyra pyramidoides). Hildacy Farm Preserve, Media, PA.
Copulating white peacocks (Anartia jatrophae). Zolfo Springs, FL.
Ancylis platanana caterpillar on American sycamore (Platanus occidentalis). Hildacy Preserve, Media, PA.
Polyphemus moth (Antheraea polyphemus). Female. Ridley Creek State Park, Media, PA.
Sachem (Atalopedes campestris). Longwood Gardens, Kennett Square, PA.
Ailanthus webworm (Atteva aurea). John Heinz National Wildlife Refuge, Philadelphia, PA.
Ailanthus webworm (Atteva aurea). John Heinz National Wildlife Refuge, Philadelphia, PA.
Female Ailanthus webworm moth (Atteva aurea) emitting pheromone. John Heinz National Wildlife Refuge, Philadelphia, PA.
Ailanthus moth ((Atteva aurea). John Heinz National Wildlife Refuge, Philadelphia, PA.
Ailanthus webworm moth (Atteva aurea) on white flower. Longwood Gardens, Kennett Square, PA.
Io moth (Automeris io) caterpillars feeding on tarberry (Bejaria racemosa). Highlands Hammock State Park, Sebring, FL.
Cocoon of an oak skeletonizer moth (Bucculatrix ainsliella) on abaxial surface of white oak leaf. Hildacy Preserve, Media, PA.
Adaxial surface of oak leaf damaged by oak skeletonizer moth (Bucculatrix ainsliella). Hildacy Preserve, Media, PA.
Prometheus moth (Callosamia promethea) preparing for pupation. Stroud Preserve, West Chester, PA.
Caterpillar of Brazilian skipper (Calpodes ethlius) on cultivated canna lily (Canna sp.). Zolfo Springs, FL.
Caterpillar of Brazilian skipper (Calpodes ethlius) on cultivated canna lily (Canna sp.). Zolfo Springs, FL.
Poison ivy leaf-miner (Cameraria guttifinitella). John Heinz National Wildlife Refuge, Philadelphia, PA.
Cameraria sp. leaf mine in white oak. ID tentative. Hildacy Preserve, Media, PA.
Eupatorium borer moth (Carmenta bassiformis). Hildacy Preserve, Media, PA.
Ironweed clearwing (Carmenta bassiformis). Hildacy Preserve, Media, PA.
Catocala neogama. on grass blades. ID tentative. Glen Providence Park, Media, PA.
Summer azure (Celastrina neglecta). Longwood Gardens, Kennett Square, PA.
Celastrina sp. on leaf. Ashbridge Preserve, West Goshen, PA.
Orange-collared scape moth (Cisseps fulvicollis) on mint. Willistown, PA.
Tobacco hornworm (Manduca sexta) with hornworm parasitoid wasp (Cotesia congregata) cocoons. Swarthmore, PA.
Tobacco hornworm (Manduca sexta) with hornworm parasitoid wasp (Cotesia congregata) cocoons. Swarthmore, PA.
Crambid moth. ChesLen Preserve, Willistown, PA.
Dark form of the sweetfern geometer moth (Cyclophora pendulinaria) on dead tree. Mohonk Mountain House, New Paltz, NY.
Delicate Cycnia moth (Cycnia tenera). John Heinz National Wildlife Refuge, Philadelphia, PA.
Monarch (Danaus plexippus) eating a milkweed flower. Saugerties, NY.
Monarch caterpillar (Danaus plexippus) eating milkweed
Chrysalis of monarch (Danaus plexippus). Swarthmore, PA.
Chrysalis of monarch (Danaus plexippus). Swarthmore, PA. Swarthmore, PA.
Monarchs (Danaus plexippus) copulating. Rushton Woods Preserve, Willistown, PA.
Monarch egg on swamp milkweed flower bud. Swarthmore, PA.
Monarch egg on swamp milkweed flower bud. Swarthmore, PA.
Monarch egg on swamp milkweed flower bud. Swarthmore, PA.
Monarch (Danaus plexippus) egg on swamp milkweed (Asclepias incarnata). Swarthmore, PA.
Monarch (Danaus plexippus) egg on swamp milkweed (Asclepias incarnata). Swarthmore, PA.
Monarch caterpillar eating a milkweed pod. Swarthmore, PA.
Monarch butterfly ovipositing on swamp milkweed. Swarthmore, PA.
Virginia creeper sphinx (Darapsa myron) in defensive posture. Aston, PA.
Dasychira meridionalis (southern tussock moth) caterpillar. Myakka River State Park, Myakka, FL.
Dasychira meridionalis (southern tussock moth) caterpillar on oak. Zolfo Springs, FL.
Dryadula phaetusa. Captive population, Academy of Natural Sciences of Philadelphia.
Bad-wing moth (Dyspteris abortivaria). Rushton Woods Preserve, Willistown, PA.
Bad-wing moth (Dyspteris abortivaria). Rushton Woods Preserve, Willistown, PA.
Swarthmore, PA.
Morning glory plume moth (emmalina-monodactyla) on window. Swarthmore, PA.
Morning glory plume moth (Emmalina monodactyla). Swarthmore, PA.
Morning glory plume moth (Emmelina monodactyla) on leaf. ChesLen Preserve, Coatsville, PA.
Mournful sphinx (Enyo lugubris). Puerto Ayora, Santa Cruz Island.
Tulip-tree beauty (Epimecis hortaria). Tyler Arboretum, Media, PA.
Caterpillar of Zarucco duskywing (Erynnis zarucco) on scarlet sesban (Sesbania punicea). Zolfo Springs, FL.
Caterpillar of Zarucco duskywing (Erynnis zarucco) on scarlet sesban (Sesbania punicea). Zolfo Springs, FL.
American common pug (Eupithecia miserulata) on swamp verbena. Stoneleigh Garden, Villanova, PA.
Curve-toothed geometer moth (Eutrapela clemataria). ID tentative. Pioneer Park, Zolfo Springs, FL.
Curve-toothed geometer moth (Eutrapela clemataria). ID tentative. Pioneer Park, Zolfo Springs, FL.
Likely a curve-toothed geometer moth (Eutrapela clemataria). Pioneer Park, Zolfo Springs, FL.
Shaler’s Fabiola moth (Fabiola shaleriella) on lichen. Mohonk Mountain House, New Paltz, NY.
Planthopper parasite moth (Fulgoraecia exigua) next to its cocoon. John Heinz National Wildlife Refuge, Philadelphia, PA.
Ventral view of a planthopper parasite (Fulgoraecia exigua) larva hanging from a strand of silk. Goshen Trail, Newtown Square, PA.
Planthopper parasite moth (Fulgoraecia exigua cocoon). Caterpillar. Media, PA.
Ventral view of a planthopper parasite (Fulgoraecia exigua) larva hanging from a strand of silk. Goshen Trail, Newtown Square, PA.
Larva of a planthopper parasite moth (Fulgoraecia exigua). Goshen Trail, Newtown Square, PA.
Planthopper parasite moth (Fulgoraecia exigua). Longwood Gardens, Kennett Square, PA.
Planthopper parasite moth (Fulgoraecia exigua). Swarthmore, PA.
Planthopper parasite moth (Fulgoraecia exigua). Little Crum Creek Park, Swarthmore, PA.
Goldenrod elliptical-gall moth (Gnorimoschema gallaesolidaginis). New London, CT.
Sycamore tussock moth caterpillar (Halysidota harrisii). Media, PA USA.
Sycamore tussock moth caterpillar (Halysidota harrisii). Media, PA USA.
Grapeleaf skeletonizer moth (Harrisina americana). Rushton Woods Preserve, Willistown, PA.
Snowberry clearwing moth (Hemaris diffinis) nectaring on wild bergamot. Hildacy Farm Preserve, Media, PA USA.
Snowberry clearwing moth (Hemaris diffinis) nectaring on wild bergamot. Hildacy Farm Preserve, Media, PA USA.
Hummingbird clearwing moth (Hemaris diffinis) nectaring on wild bergamot. Hildacy Preserve, Media, PA.
Hummingbird clearwing moth (Hemaris diffinis) nectaring on wild bergamot. Hildacy Preserve, Media, PA.
Snowberry clearwing moth (Hemaris diffinis) nectaring on wild bergamot. Hildacy Farm Preserve, Media, PA USA.
Hummingbird clearwing moth (Hemaris thysbe) nectaring at wild bergamot. Hildacy Farm, Media, PA USA.
Hummingbird clearwing moth (Hemaris thysbe) and snowberry clearwing moth (Hemaris diffinis). Hildacy Preserves, Media, PA.
Hummingbird clearwing moth (Hemaris thysbe) nectaring at wild bergamot. Hildacy Farm, Media, PA USA.
Hummingbird clearwing moth (Hemaris thysbe) with unfurled proboscis. Hildacy Farm Preserve, Media, PA USA.
Hummingbird clearwing moth (Hemaris thysbe) with partially unfurled proboscis. Hildacy Preserve, Media, PA.
Hummingbird clearwing moth (Hemaris thysbe) with partially unfurled proboscis. Hildacy Preserve, Media, PA.
Hummingbird clearwing moth (Hemaris thysbe) with unfurled proboscis. Hildacy Preserve, Media, PA USA.
Hummingbird clearwing moth (Hemaris thysbe) nectaring at wild bergamot. Hildacy Preserve, Media, PA USA.
Hummingbird clearwing moth (Hemaris thysbe) showing wing veination. Hildacy Preserve, Media, PA USA.
Western branded skipper (Hesperia colorado). Crooked River National Grassland, Madras, OR.
Western branded skipper (Hesperia colorado). Crooked River National Grassland, Madras, OR.
Green cloverworm moth (Hypena scabra). Saul Wildlife Sanctuary, Rose Valley, PA.
Giant leopard moth (Hypercompe scribonia). Havertown, Pennsylvania.
Giant leopard moth caterpillar (Hypercompe scribonia). Crum Woods, Swarthmore, PA.
Graylet moth (Hyperstrotia sp.) larva on scarlet Sesbania (Sesbania punicea). ID tentative. Zolfo Springs, FL.
Graylet moth (Hyperstrotia sp.) larva on scarlet Sesbania (Sesbania punicea). ID tentative. Zolfo Springs, FL.
Fall webworm moth (Hyphantria cunea). Mohonk Mountain House, New Paltz, NY.
Red-spotted purple (Limenitis arthemis astyanax). Crum Woods, Swarthmore, PA.
Either Lochmaeus manteo (variable oakleaf moth) or L. bilineata (a double-lined prominent). Rose Tree Park, Media, PA.
Hobomok skipper (Lon hobomok). Rushton Woods Preserve. Willistown, PA.
Zabulon skipper (Lon zabulon). Asbridge Preserve, West Goshen, PA.
Gypsy moth (Lymantria dispar) on grape leaf. Niagara-on-the-Lake, Canada.
Gypsy moth (Lymantria dispar) on grape leaf. Niagara-on-the-Lake, Canada.
Hemlock angle (Macaria fissinotata) on lichen-covered rock. Mohonk Mountain House, New Paltz, NY.
Macaria sulphurea (Itame sulphurea) larva in defensive posture. ID tentative. Mohonk Mountain House, New Paltz, NY.
Rustic sphinx moth (Manduca rustica). Isla Santa Cruz, Galápagos.
Tobacco hornworm (Manduca sexta). On tomato. Swarthmore, PA.
Southern flannel moth (Megalopyge opercularis). Zolfo Springs, FL.
Squash vine borer moth (Melittia cucurbitae) on swamp milkweed. Swarthmore, PA.
Squash vine borer moth (Melittia cucurbitae) on swamp milkweed. Swarthmore, PA.
Squash vine borer moth (Melittia cucurbitae) on swamp milkweed. Swarthmore, PA.
Common fungus moth (Metalectra discalis). Ridley Creek State Park, Edgemont, PA.
Woman backlit while blacklighting. Hildacy Preserve, Media, PA.
Woman backlit while blacklighting. Hildacy Preserve, Media, PA.
Eggs of an unidentified cutworm (Noctuidae). Zolfo Springs, FL.
Asimina webworm moth (Omphalocera munroei). Paynes Creek Historic Park, Bowling Green, FL.
Egg case of a white-marked tussock moth (Orgyia leucostigma). John Heinz National Wildlife Refuge, Philadelphia, PA.
White-marked tussock moth (Orgyia leucostigma) egg case. ID tentative. John Heinz National Wildlife Refuge, Philadelphia, PA.
White-marked tussock moth (Orgyia leucostigma). Zolfo Springs, FL.
Pandora sphinx moth (Eumorpha pandorus). Hildacy Preserve, Media, PA.
Eastern tiger swallowtail (Papilio glaucus). Ridley Creek State Park, Edgemont, PA.
Edgemont, PA.
Eastern tiger swallowtail (Papilio glaucus). Clayton Park, Monmouth County, New Jersey, United States.
Eastern tiger swallowtail (Papilio glaucus) feeding on buttonbush (Cephalanthus occidentalis). Swarthmore, PA.
Black swallowtail (Papilio polyxenes). Swarthmore, PA.
Bluegrass webworm moth (Parapediasia teterrellus). Rose Tree Park, Media, PA.
Locust digitate leafminer moth (Parectopa robiniella). John Heinz National Wildlife Refuge, Philadelphia, PA.
Female raspberry crown borer (Pennisetia marginata). Media, PA.
Pearl crescent (Phyciodes tharos). Oberlin Arboretum, Oberlin, Ohio.
American grape leaf miner (Phyllocnistis vitegenella). Rose Tree Park, Media, PA.
Cabbage white (Pieris rapae). Rose Tree Park, Media, PA.
Small white (Pieris rapae) caterpillar on garlic mustard (Alliaria petiolata). Springfield, PA.
Artichoke plume moth (Platyptilia carduidactylus).
Caterpillar in the genus Prococera. Feeding on Quercus geminata. Highlands Hammock State Park. Sebring, FL.
Beech leaves inhabited by dotted leaftier (Psilocorsis reflexella) caterpillar. ID tentative. Hildacy Preserve, Media, PA.
Beech leaves inhabited by dotted leaftier (Psilocorsis reflexella) caterpillar. ID tentative. Hildacy Preserve, Media, PA.
Dotted leaftier (Psilocorsis reflexella) caterpillar. ID tentative. Hildacy Preserve, Media, PA.
Dotted leaftier (Psilocorsis reflexella) caterpillar. ID tentative. Hildacy Preserve, Media, PA.
Common bagworm moth (Psyche casta) with case constructed of conifer needles. Mohonk Mountain House, New Paltz, NY.
Bagworm moth (Psychidae). Zolfo Springs, FL.
Meal moth (Pyralis farinalis). Swarthmore, PA.
Raspberry Pyrausta moth (Pyrausta signatalis) caterpillar on bee balm. Swarthmore, PA.
Coffee-loving pyrausta moth (Pyrausta tyralis). Mt. Cuba Center, DE.
Orange-patched smoky moth (Pyromorpha dimidiata). Mohonk Mountain House, New Paltz, NY.
Isabella tiger moth (Pyrrharctia isabella) caterpillar. ID tentative. Hildacy Farm Preserve, Media, PA.
Larva of yellow-vested moth (Rectiostoma xanthobasis). Pioneer Park, Zolfo Springs, FL.
Leaf retreat of a yellow-vested moth (Rectiostoma xanthobasis). Pioneer Park, Zolfo Springs, FL.
Eggplant webworm (Rhectocraspeda periusalis) on tomato.
Eggplant webworm (Rhectocraspeda periusalis) on tomato.
Eggplant webworm (Rhectocraspeda periusalis) on tomato.
Assembly moth (Samea ecclesialis) on fern frond. Zolfo Springs, FL.
Salvinia stem borer moth (Samea multiplicalis) on bark. Zolfo Springs, FL.
Banded hairstreak (Satyrium calanus). Mohonk Mountain House, New Paltz, NY.
Striped hairstreak (Satyrium liparops) eating a mountain laurel flower. ID not confirmed. Mohonk Mountain House, New Paltz, NY.
Checkered-fringe prominent (Schizura ipomoeae) feeding on blackberry. Also known as the morning-glory prominent and the false unicorn prominent. Rose Tree Park, Media, PA.
Dark brown Scoparia moth (Scoparia penumbralis) on lichen-covered rock. ID not confirmed. Mohonk Mountain House, New Paltz, NY.
Dark brown Scoparia moth (Scoparia penumbralis). ID not confirmed. Mohonk Mountain House, New Paltz, NY.
Caterpillar of pale-edged Selenisa (Selenisa sueroides) on scarlet sesbane (Sesbania punicea). Zolfo Springs, FL.
Caterpillar of pale-edged Selenisa (Selenisa sueroides) on scarlet sesbane (Sesbania punicea). Zolfo Springs, FL.
Pale-edged Selenisa (Selenisa sueroides) larva on scarlet sesban (Sesbania punicea).
Caterpillar of pale-edged Selenisa (Selenisa sueroides) on scarlet sesbane (Sesbania punicea). Zolfo Springs, FL.
Great spangled fritillary (Speyeria cybele) on milkweed. Rushton Woods Preserve, Willistown, PA.
Common great spangled fritillary (Speyeria cybele cybele) nectaring on common milkweed. Male. At Rushton Woods Preserve, Willistown, PA.
Great spangled fritillary (Speyeria cybele) on milkweed. Rushton Woods Preserve, Willistown, PA.
Common great spangled fritillary (Speyeria cybele cybele) nectaring on common milkweed. Male. At Rushton Woods Preserve, Willistown, PA.
Greater fritillary (Speyeria sp.) on mountain cove mint. Yosemite, CA.
Stigmella rhoifoliella on poison ivy. Hildacy Preserve, Media, PA.
Gray hairstreak (Strymon melinus). Longwood Gardens, Kennett Square, PA.
Sunflower bud moth (Suleima helianthana) gall on Jerusalem artichoke (Helianthus tuberosus). ID tentative. Swarthmore, PA.
Wavy-lined emerald (Synchlora aerata) on goldenrod inflorescence. Longwood Gardens, Kennett Square, PA.
Evergreen bagworm moth (Thyridopteryx ephemeraeformis) on oak tree. Zolfo Springs, FL.
Evergreen bagworm moth ( (Thyridopteryx ephemeraeformis) on pine. Binky Lee Preserve, Chester Springs, PA.
Evergreen bagworm moth ( (Thyridopteryx ephemeraeformis) on pine. Binky Lee Preserve, Chester Springs, PA.
Evergreen bagworm moth (Thyridopteryx ephemeraeformis). Willistown, PA.
Evergreen bagworm (Thyridopteryx ephemeraeformis) with ragweed bag. John Heinz National Wildlife Refuge, Philadelphia, PA.
Evergreen bagworm moth (Thyridopteryx ephemeraeformis). Willistown, PA.
Caterpillar in retreat constructed on scarlet Sesbania (Sesbania punicea). Zolfo Springs, FL.