• Résultats pour
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Beewolf (Philanthus gibbosus) nectaring on flower, Pennsylvania, USA. July.
01719104
Doug Wechsler / Beewolf (Philanthus gibbosus) nectaring on flower, Pennsylvania, USA. July.
Bald-faced hornet (Dolichovespula maculata) hibernating inside a log, Montgomery County, Pennsylvania, USA. November.
01719103
Doug Wechsler / Bald-faced hornet (Dolichovespula maculata) hibernating inside a log, Montgomery County, Pennsylvania, USA. November.
Bald-face hornet (Dolichovespula maculata) drinking fermented sap (alcohol flux) from tree bark, Montgomery County, Pennsylvania, USA. September.
01719102
Doug Wechsler / Bald-face hornet (Dolichovespula maculata) drinking fermented sap (alcohol flux) from tree bark, Montgomery County, Pennsylvania, USA. September.
Pure gold-green sweat bee (Augochlora pura) hibernating inside a log, Pennsylvania, USA. April.
01719101
Doug Wechsler / Pure gold-green sweat bee (Augochlora pura) hibernating inside a log, Pennsylvania, USA. April.
Two Ferruginous carpenter ants (Camponotus chromaiodes) on a Common jewelweed leaf (Impatiens capensis) sharing food with Aphids (Aphididae) they are tending, Bucks County, Pennsylvania, USA. Septembe...
01719100
Doug Wechsler / Two Ferruginous carpenter ants (Camponotus chromaiodes) on a Common jewelweed leaf (Impatiens capensis) sharing food with Aphids (Aphididae) they are tending, Bucks County, Pennsylvania, USA. Septembe...
Ant (Vollenhovia emeryi) tending to larvae in nest, Montgomery County, Pennsylvania, USA. June.
01719099
Doug Wechsler / Ant (Vollenhovia emeryi) tending to larvae in nest, Montgomery County, Pennsylvania, USA. June.
Ant bug (Alydus eurinus) resting on leaf, Bucks County, Pennsylvania, USA. August.
01719098
Doug Wechsler / Ant bug (Alydus eurinus) resting on leaf, Bucks County, Pennsylvania, USA. August.
Ant bug (Alydus eurinus) nymph, resting on leaf, Bucks County, Pennsylvania, USA. August.
01719097
Doug Wechsler / Ant bug (Alydus eurinus) nymph, resting on leaf, Bucks County, Pennsylvania, USA. August.
American toad (Anaxyrus americanus) male, waiting at roadside at night, Pennsylvania, USA. March.
01719096
Doug Wechsler / American toad (Anaxyrus americanus) male, waiting at roadside at night, Pennsylvania, USA. March.
Blowfly (Calliphoridae) drinking fermented sap (alcohol flux) from tree bark, Montgomery County, Pennsylvania, USA. September.
01719095
Doug Wechsler / Blowfly (Calliphoridae) drinking fermented sap (alcohol flux) from tree bark, Montgomery County, Pennsylvania, USA. September.
Parasitic fungus (Akanthomyces aculeatus) covering a moth (Lepidoptera), Pennsylvania, USA. September.
01719094
Doug Wechsler / Parasitic fungus (Akanthomyces aculeatus) covering a moth (Lepidoptera), Pennsylvania, USA. September.
Acorn weevil (Curculio sp.) larva inside White oak (Quercus alba) acorn, cross-section, Pennsylvania, USA. September.
01719093
Doug Wechsler / Acorn weevil (Curculio sp.) larva inside White oak (Quercus alba) acorn, cross-section, Pennsylvania, USA. September.
Hunting wasp (Zethus spinipes) resting on Mountain mint (Pycnanthemum sp.) flower, Four Mills Nature Preserve, Pennsylvania, USA. August.
01719092
Doug Wechsler / Hunting wasp (Zethus spinipes) resting on Mountain mint (Pycnanthemum sp.) flower, Four Mills Nature Preserve, Pennsylvania, USA. August.
Yellowjacket (Vespula sp.) queen hibernating in rotten log, Wissahickon Valley Park, Pennsylvania, USA. September.
01719091
Doug Wechsler / Yellowjacket (Vespula sp.) queen hibernating in rotten log, Wissahickon Valley Park, Pennsylvania, USA. September.
Yellow warbler (Setophaga petechia) male, perched on branch, Magee Marsh Wildlife Area, Ohio, USA. May.
01719090
Doug Wechsler / Yellow warbler (Setophaga petechia) male, perched on branch, Magee Marsh Wildlife Area, Ohio, USA. May.
Woodchuck (Marmota monax) feeding on an acorn from White oak (Quercus alba) tree, Morris Arboretum, Pennsylvania, USA. October.
01719089
Doug Wechsler / Woodchuck (Marmota monax) feeding on an acorn from White oak (Quercus alba) tree, Morris Arboretum, Pennsylvania, USA. October.
Wide-footed treehopper (Enchenopa latipes) resting on leaf, portrait, Pennsylvania, USA. August.
01719088
Doug Wechsler / Wide-footed treehopper (Enchenopa latipes) resting on leaf, portrait, Pennsylvania, USA. August.
White baneberry (Actaea Pachypoda) fruits, Letchworth State Park, New York, USA. September.
01719086
Doug Wechsler / White baneberry (Actaea Pachypoda) fruits, Letchworth State Park, New York, USA. September.
Wedge-shaped beetle (Athyroglossa glaphyropus) resting on Mountain mint (Pycnanthemum sp) Four Mills Nature Preserve, Pennsylvania, USA. August.
01719085
Doug Wechsler / Wedge-shaped beetle (Athyroglossa glaphyropus) resting on Mountain mint (Pycnanthemum sp) Four Mills Nature Preserve, Pennsylvania, USA. August.
Wavy-lined emerald moth (Synchlora aerata), portrait, Cape May, New Jersey, USA. October.
01719084
Doug Wechsler / Wavy-lined emerald moth (Synchlora aerata), portrait, Cape May, New Jersey, USA. October.
Ants (Vollenhovia emeryi) in nest tending  larvae and pupae, Armentrout Preserve, Pennsylvania, USA. July.
01719083
Doug Wechsler / Ants (Vollenhovia emeryi) in nest tending larvae and pupae, Armentrout Preserve, Pennsylvania, USA. July.
Five Vinegar flies (Mycodrosophila) and a Forest midge (Cecidomyiidae) resting on underside of Artist conk fungus (Ganoderma applanatum), Crossways Preserve, Pennsylvania, USA. July.
01719082
Doug Wechsler / Five Vinegar flies (Mycodrosophila) and a Forest midge (Cecidomyiidae) resting on underside of Artist conk fungus (Ganoderma applanatum), Crossways Preserve, Pennsylvania, USA. July.
Tree swallow (Tachycineta bicolor) migratory flock descending to feed on Bayberries (Myrica pensylvanica), Cape May, New Jersey, USA. October.
01719081
Doug Wechsler / Tree swallow (Tachycineta bicolor) migratory flock descending to feed on Bayberries (Myrica pensylvanica), Cape May, New Jersey, USA. October.
Tree swallow (Tachycineta bicolor) flock resting on beach during southward migration, Cape May, New Jersey, USA. October.
01719080
Doug Wechsler / Tree swallow (Tachycineta bicolor) flock resting on beach during southward migration, Cape May, New Jersey, USA. October.
Tree swallow (Tachycineta bicolor) flock descending to feed on Bayberries (Myrica pensylvanica) during southward migration, Cape May, New Jersey, USA. October.
01719079
Doug Wechsler / Tree swallow (Tachycineta bicolor) flock descending to feed on Bayberries (Myrica pensylvanica) during southward migration, Cape May, New Jersey, USA. October.
Thick-headed fly (Physocephala tibialis) a wasp mimic, resting on leaf, Pennsylvania, USA. September.
01719078
Doug Wechsler / Thick-headed fly (Physocephala tibialis) a wasp mimic, resting on leaf, Pennsylvania, USA. September.
Taurus mason bee (Osmia taurus) covered in pollen, portrait, Pennsylvania, USA. May.
01719077
Doug Wechsler / Taurus mason bee (Osmia taurus) covered in pollen, portrait, Pennsylvania, USA. May.
Tachnid fly / Bristle fly (Juriniopsis adusta) resting on tree bark, Pennsylvania, USA. August.
01719076
Doug Wechsler / Tachnid fly / Bristle fly (Juriniopsis adusta) resting on tree bark, Pennsylvania, USA. August.
Bristle fly (Vibrissina sp.) parasitising Saw fly (Arge coccinea) larva, Wissahickon Valley Park, Pennsylvania, USA. July.
01719075
Doug Wechsler / Bristle fly (Vibrissina sp.) parasitising Saw fly (Arge coccinea) larva, Wissahickon Valley Park, Pennsylvania, USA. July.
Bristle fly (Gonia sp.) portrait, Pennsylvania, USA. April.
01719074
Doug Wechsler / Bristle fly (Gonia sp.) portrait, Pennsylvania, USA. April.
Bristle fly (Gonia sp.) portrait, Pennsylvania, USA. April.
01719073
Doug Wechsler / Bristle fly (Gonia sp.) portrait, Pennsylvania, USA. April.
Tachinid fly (Archytas metallicus) resting on a hand, Wissahickon Valley Park, Pennsylvania, USA. July.
01719072
Doug Wechsler / Tachinid fly (Archytas metallicus) resting on a hand, Wissahickon Valley Park, Pennsylvania, USA. July.
Flesh fly (Sarcophagidae) investigating a Tachinid fly (Archytas metallicus) on human skin, Wissahickon Valley Park, Pennsylvania, USA. July.
01719071
Doug Wechsler / Flesh fly (Sarcophagidae) investigating a Tachinid fly (Archytas metallicus) on human skin, Wissahickon Valley Park, Pennsylvania, USA. July.
Symphalan (Scutigerella sp.) in a rotten log, Wissahickon Valley Park, Pennsylvania, USA. April.
01719070
Doug Wechsler / Symphalan (Scutigerella sp.) in a rotten log, Wissahickon Valley Park, Pennsylvania, USA. April.
American sycamore (Platanus occidentalis) with hollow trunk on banks of Wissahickon Creek, Montgomery County, Pennsylvania, USA. April.
01719069
Doug Wechsler / American sycamore (Platanus occidentalis) with hollow trunk on banks of Wissahickon Creek, Montgomery County, Pennsylvania, USA. April.
Panoramic view of the winding Susquehanna River taken from Wyalusing Rocks Scenic Overlook, Bradford County, Pennsylvania, USA. October, 2022.
01719068
Doug Wechsler / Panoramic view of the winding Susquehanna River taken from Wyalusing Rocks Scenic Overlook, Bradford County, Pennsylvania, USA. October, 2022.
Square-snouted mustache ants (Strumigenys rostrata) in nest with  larvae, pupae and eggs, Pennsylvania, USA. July.
01719067
Doug Wechsler / Square-snouted mustache ants (Strumigenys rostrata) in nest with larvae, pupae and eggs, Pennsylvania, USA. July.
Stilt-legged fly (Rainieria antennaepes) resting on mossy log, Crossways Preserve, Pennsylvania, USA. July.
01719066
Doug Wechsler / Stilt-legged fly (Rainieria antennaepes) resting on mossy log, Crossways Preserve, Pennsylvania, USA. July.
Lesser yellowlegs (Tringa flavipes) with a group of Stilt sandpipers (Calidris himantopus) foraging in mudflats, Cape May, New Jersey, USA. October.
01719065
Doug Wechsler / Lesser yellowlegs (Tringa flavipes) with a group of Stilt sandpipers (Calidris himantopus) foraging in mudflats, Cape May, New Jersey, USA. October.
Springtail (Isotomidae) in a rotten log, Camp Woods Preserve, Pennsylvania, USA. May.
01719064
Doug Wechsler / Springtail (Isotomidae) in a rotten log, Camp Woods Preserve, Pennsylvania, USA. May.
Spotted lanternfly (Lycorma delicatula) hanging from leaf, metamorphosing into adult form, Pennsylvania, USA. July.
01719063
Doug Wechsler / Spotted lanternfly (Lycorma delicatula) hanging from leaf, metamorphosing into adult form, Pennsylvania, USA. July.
Spotted lanternfly (Lycorma delicatula) hanging from leaf, metamorphosing into adult form, Pennsylvania, USA. July.
01719062
Doug Wechsler / Spotted lanternfly (Lycorma delicatula) hanging from leaf, metamorphosing into adult form, Pennsylvania, USA. July.
Group of Southern yellowjackets (Vespula squamosa) at nest entrance, Pennsylvania, USA. September.
01719061
Doug Wechsler / Group of Southern yellowjackets (Vespula squamosa) at nest entrance, Pennsylvania, USA. September.
Group of Small carpenter bees (Ceratina sp.) sheltering inside Goldenrod (Solidago sp.) stalk (cross section), Pennsylvania, USA. September.
01719060
Doug Wechsler / Group of Small carpenter bees (Ceratina sp.) sheltering inside Goldenrod (Solidago sp.) stalk (cross section), Pennsylvania, USA. September.
Parasitic wasp (Orussus minutus) portrait, Morris Arboretum, Pennsylvania, USA. April.
01719059
Doug Wechsler / Parasitic wasp (Orussus minutus) portrait, Morris Arboretum, Pennsylvania, USA. April.
Two Sanderlings (Calidris alba) running along the shoreline, Higbee Beach Wildlife Management Area, New Jersey, USA. September.
01719058
Doug Wechsler / Two Sanderlings (Calidris alba) running along the shoreline, Higbee Beach Wildlife Management Area, New Jersey, USA. September.
Rove beetle (Tachinus sp.) in a log, Camp Woods Preserve, Pennsylvania, USA. September.
01719057
Doug Wechsler / Rove beetle (Tachinus sp.) in a log, Camp Woods Preserve, Pennsylvania, USA. September.
Forest midges (Cecidomyiidae) resting on strand of spider silk at base of tree, Armentrout Preserve, Pennsylvania, USA. July.
01719056
Doug Wechsler / Forest midges (Cecidomyiidae) resting on strand of spider silk at base of tree, Armentrout Preserve, Pennsylvania, USA. July.
Three Forest midges (Cecidomyiidae) resting on strand of spider silk at base of tree, Armentrout Preserve, Pennsylvania, USA. July.
01719055
Doug Wechsler / Three Forest midges (Cecidomyiidae) resting on strand of spider silk at base of tree, Armentrout Preserve, Pennsylvania, USA. July.
Robber fly (Leptogaster sp.) tangled up with another predatory fly in a spider's web, Camp Woods Preserve, Pennsylvania, USA. July.
01719054
Doug Wechsler / Robber fly (Leptogaster sp.) tangled up with another predatory fly in a spider's web, Camp Woods Preserve, Pennsylvania, USA. July.
Rhubarb weevil (Lixus concavus) resting on leaf, portrait, Pennsylvania, USA. May.
01719053
Doug Wechsler / Rhubarb weevil (Lixus concavus) resting on leaf, portrait, Pennsylvania, USA. May.
Red-winged blackbirds (Agelaius phoeniceus) pair, female in foreground, feeding, Magee Marsh Wildlife Area, Ohio, USA. May.
01719051
Doug Wechsler / Red-winged blackbirds (Agelaius phoeniceus) pair, female in foreground, feeding, Magee Marsh Wildlife Area, Ohio, USA. May.
Red flat bark beetle (Cucujus clavipes) head portrait, Pennsylvania, USA. May.
01719049
Doug Wechsler / Red flat bark beetle (Cucujus clavipes) head portrait, Pennsylvania, USA. May.
Red flat bark beetle (Cucujus clavipes) resting on bark, Pennsylvania, USA. May.
01719048
Doug Wechsler / Red flat bark beetle (Cucujus clavipes) resting on bark, Pennsylvania, USA. May.
Signal flies (Pseudotephritis approximata) pair, laying eggs in tree bark, Camp Woods Preserve, Pennsylvania, USA. August.
01719047
Doug Wechsler / Signal flies (Pseudotephritis approximata) pair, laying eggs in tree bark, Camp Woods Preserve, Pennsylvania, USA. August.
Signal fly (Pseudotephritis approximata) female, laying eggs in tree bark, Camp Woods Preserve, Pennsylvania, USA. August.
01719046
Doug Wechsler / Signal fly (Pseudotephritis approximata) female, laying eggs in tree bark, Camp Woods Preserve, Pennsylvania, USA. August.
Prothonotary warbler (Protonotaria citrea) male, perched on branch, feeding, Magee Marsh Wildlife Area, Ohio, USA. May.
01719045
Doug Wechsler / Prothonotary warbler (Protonotaria citrea) male, perched on branch, feeding, Magee Marsh Wildlife Area, Ohio, USA. May.
Prothonotary warbler (Protonotaria citrea) male, perched on branch, singing, Magee Marsh Wildlife Area, Ohio, USA. May.
01719044
Doug Wechsler / Prothonotary warbler (Protonotaria citrea) male, perched on branch, singing, Magee Marsh Wildlife Area, Ohio, USA. May.
Two Ponerine ants (Ponerinae) in nest in rotten log, with eggs, larvae and pupae, Armentrout Preserve, Pennsylvania, USA. July.
01719043
Doug Wechsler / Two Ponerine ants (Ponerinae) in nest in rotten log, with eggs, larvae and pupae, Armentrout Preserve, Pennsylvania, USA. July.
Podurmorph springtails (Hypogastrura sp.) in rotten log, Camp Woods Preserve, Pennsylvania, USA. October.
01719042
Doug Wechsler / Podurmorph springtails (Hypogastrura sp.) in rotten log, Camp Woods Preserve, Pennsylvania, USA. October.
Pigeon horntail (Tremex columba) female, laying eggs on tree bark, Camp Woods Preserve, Pennsylvania, USA. September.
01719041
Doug Wechsler / Pigeon horntail (Tremex columba) female, laying eggs on tree bark, Camp Woods Preserve, Pennsylvania, USA. September.
Philadelphia vireo (Vireo philadelphicus) perched on branch feeding on Dragonfly (Odonata) prey, Magee Marsh Wildlife Area, Ohio, USA. May.
01719040
Doug Wechsler / Philadelphia vireo (Vireo philadelphicus) perched on branch feeding on Dragonfly (Odonata) prey, Magee Marsh Wildlife Area, Ohio, USA. May.
Chalcidoid wasp (Ooencyrtus kuvanae) resting on Gypsy moth (Lymantria dispar) egg mass, New Jersey, USA. August.
01719039
Doug Wechsler / Chalcidoid wasp (Ooencyrtus kuvanae) resting on Gypsy moth (Lymantria dispar) egg mass, New Jersey, USA. August.
Oleander aphid (Aphis nerii) alates and nymphs on Common milkweed (Asclepias syriaca) leaf, Pennsylvania, USA. July.
01719038
Doug Wechsler / Oleander aphid (Aphis nerii) alates and nymphs on Common milkweed (Asclepias syriaca) leaf, Pennsylvania, USA. July.
Oak apple galls formed by Gall wasp (Amphibolips sp.) Pennsylvania, USA. May.
01719037
Doug Wechsler / Oak apple galls formed by Gall wasp (Amphibolips sp.) Pennsylvania, USA. May.
Nomad bee (Nomada sp.), a Yellowjacket mimic, resting on dried leaf, Camp Woods Preserve, Pennsylvania, USA. April.
01719036
Doug Wechsler / Nomad bee (Nomada sp.), a Yellowjacket mimic, resting on dried leaf, Camp Woods Preserve, Pennsylvania, USA. April.
Mosquito (Culicidae) larvae in treehole cavity, Camp Woods Preserve, Pennsylvania, USA. June.
01719035
Doug Wechsler / Mosquito (Culicidae) larvae in treehole cavity, Camp Woods Preserve, Pennsylvania, USA. June.
Northern mockingbird (Mimus polyglottos) mobbing a Red-tailed hawk (Buteo jamaicensis) perched on telephone wires, Pennsylvania, USA. June.
01719033
Doug Wechsler / Northern mockingbird (Mimus polyglottos) mobbing a Red-tailed hawk (Buteo jamaicensis) perched on telephone wires, Pennsylvania, USA. June.
Northern mockingbird (Mimus polyglottos) mobbing a Red-tailed hawk (Buteo jamaicensis) perched on telephone wires, Pennsylvania, USA. June.
01719032
Doug Wechsler / Northern mockingbird (Mimus polyglottos) mobbing a Red-tailed hawk (Buteo jamaicensis) perched on telephone wires, Pennsylvania, USA. June.
Mexican grass-carrying wasp (Isodontia mexicana) resting on Mountain mint (Pycnanthemum sp.) flower, Four Mills Nature Preserve, Pennsylvania, USA. August.
01719031
Doug Wechsler / Mexican grass-carrying wasp (Isodontia mexicana) resting on Mountain mint (Pycnanthemum sp.) flower, Four Mills Nature Preserve, Pennsylvania, USA. August.
Flatheaded mayfly (Maccaffertium sp.) nymph, portrait on white background, Pennsylvania, USA. April.
01719030
Doug Wechsler / Flatheaded mayfly (Maccaffertium sp.) nymph, portrait on white background, Pennsylvania, USA. April.
Masked bee (Hylaeus sp.) female, concentrating a bubble of nectar, Pennsylvania, USA. August.
01719029
Doug Wechsler / Masked bee (Hylaeus sp.) female, concentrating a bubble of nectar, Pennsylvania, USA. August.
March fly (Bibionidae) larvae, Pennsylvania, USA. April.
01719028
Doug Wechsler / March fly (Bibionidae) larvae, Pennsylvania, USA. April.
March fly (Bibionidae) larva, portrait, Pennsylvania, USA. April.
01719027
Doug Wechsler / March fly (Bibionidae) larva, portrait, Pennsylvania, USA. April.
Long-tailed giant ichneumonid wasp (Megarhyssa macrurus) female ovipositing, the translucent membrane helping to push the threadlike ovipositor deep into the wood of a dead tree, Camp Woods Preserve,...
01719026
Doug Wechsler / Long-tailed giant ichneumonid wasp (Megarhyssa macrurus) female ovipositing, the translucent membrane helping to push the threadlike ovipositor deep into the wood of a dead tree, Camp Woods Preserve,...
Long-tailed giant ichneumonid wasp (Megarhyssa macrurus) female laying eggs in trunk of dead tree, Camp Woods Preserve, Pennsylvania, USA. September.
01719025
Doug Wechsler / Long-tailed giant ichneumonid wasp (Megarhyssa macrurus) female laying eggs in trunk of dead tree, Camp Woods Preserve, Pennsylvania, USA. September.
Long-tailed giant ichneumonid wasp (Megarhyssa macrurus) female laying eggs in trunk of dead tree, Camp Woods Preserve, Pennsylvania, USA. September.
01719024
Doug Wechsler / Long-tailed giant ichneumonid wasp (Megarhyssa macrurus) female laying eggs in trunk of dead tree, Camp Woods Preserve, Pennsylvania, USA. September.
Long-tailed giant ichneumonid wasp (Megarhyssa macrurus) male, resting on tree trunk, Camp Woods Preserve, Pennsylvania, USA. July.
01719023
Doug Wechsler / Long-tailed giant ichneumonid wasp (Megarhyssa macrurus) male, resting on tree trunk, Camp Woods Preserve, Pennsylvania, USA. July.
Long-tailed giant ichneumonid wasp (Megarhyssa macrurus) female ovipositing, showing the translucent membrane used to push the threadlike ovipositor deep into the wood of a dead tree, Camp Woods Prese...
01719022
Doug Wechsler / Long-tailed giant ichneumonid wasp (Megarhyssa macrurus) female ovipositing, showing the translucent membrane used to push the threadlike ovipositor deep into the wood of a dead tree, Camp Woods Prese...
Long-tailed giant ichneumonid wasp (Megarhyssa macrurus) female ovipositing, the translucent membrane helping to push the threadlike ovipositor deep into the wood of a dead tree, Camp Woods Preserve,...
01719021
Doug Wechsler / Long-tailed giant ichneumonid wasp (Megarhyssa macrurus) female ovipositing, the translucent membrane helping to push the threadlike ovipositor deep into the wood of a dead tree, Camp Woods Preserve,...
Long-horned yellowjacket fly (Sphecomyia vittata), Batesian mimic of Yellowjacket, resting on leaf, Pennsylvania, USA. May.
01719020
Doug Wechsler / Long-horned yellowjacket fly (Sphecomyia vittata), Batesian mimic of Yellowjacket, resting on leaf, Pennsylvania, USA. May.
Group of Lined flat-barked beetles (Placonotus sp.) beneath bark of a log, Camp Woods Preserve, Pennsylvania, USA. December.
01719018
Doug Wechsler / Group of Lined flat-barked beetles (Placonotus sp.) beneath bark of a log, Camp Woods Preserve, Pennsylvania, USA. December.
Leopard slugs (LImax maximus) pair during courtship, Pennsylvania, USA. September.
01719017
Doug Wechsler / Leopard slugs (LImax maximus) pair during courtship, Pennsylvania, USA. September.
Leaf-footed bugs (Acanthocephala terminalis) pair mating on a leaf, Pennsylvania, USA. June.
01719016
Doug Wechsler / Leaf-footed bugs (Acanthocephala terminalis) pair mating on a leaf, Pennsylvania, USA. June.
Leaf walker (Chalcosyrphus cruvarious), a syrphid fly, resting on a leaf, Camp Woods Preserve, Pennsylvania, USA. May.
01719015
Doug Wechsler / Leaf walker (Chalcosyrphus cruvarious), a syrphid fly, resting on a leaf, Camp Woods Preserve, Pennsylvania, USA. May.
Keeled treehopper (Entylia carinata) with eggs and a tiny Chalcid wasp (Trichogramma sp.) with purple wings, a parasitoid on the eggs of the Treehopper, Pennsylvania, USA. August.
01719014
Doug Wechsler / Keeled treehopper (Entylia carinata) with eggs and a tiny Chalcid wasp (Trichogramma sp.) with purple wings, a parasitoid on the eggs of the Treehopper, Pennsylvania, USA. August.
Digger wasp (Sphex nudus) digging a burrow in soil, Evansburg State Park, Pennsylvania, USA. August.
01719013
Doug Wechsler / Digger wasp (Sphex nudus) digging a burrow in soil, Evansburg State Park, Pennsylvania, USA. August.
Brown-legged grass-carrying wasp (Isodontia auripes) nectaring on Mountain mint (Pycnanthemum sp.) flower, Pennsylvania, USA. August.
01719012
Doug Wechsler / Brown-legged grass-carrying wasp (Isodontia auripes) nectaring on Mountain mint (Pycnanthemum sp.) flower, Pennsylvania, USA. August.
Digger wasp (Sphex nudus) nectaring on Mountain mint (Pycnanthemum sp.) flower, Pennsylvania, USA. August.
01719011
Doug Wechsler / Digger wasp (Sphex nudus) nectaring on Mountain mint (Pycnanthemum sp.) flower, Pennsylvania, USA. August.
Juniper-apple rust (Gymnosporangium juniperi-virginianae) on Virginian juniper (Juniperus virginiana) tree, Morris Arboretum, Pennsylvania, USA. May.
01719010
Doug Wechsler / Juniper-apple rust (Gymnosporangium juniperi-virginianae) on Virginian juniper (Juniperus virginiana) tree, Morris Arboretum, Pennsylvania, USA. May.
Springtail (Hypogastrura) crawling over a rotten log, Pennsylvania, USA. March.
01719009
Doug Wechsler / Springtail (Hypogastrura) crawling over a rotten log, Pennsylvania, USA. March.
Narrow-headed marsh fly (Helophilus fasciatus) nectaring on Aster (Aster sp.) flower, Pennsylvania, USA. October.
01719008
Doug Wechsler / Narrow-headed marsh fly (Helophilus fasciatus) nectaring on Aster (Aster sp.) flower, Pennsylvania, USA. October.
Horse guard wasp (Stictia carolina) digging burrow in sand, Pinelands National Reserve, New Jersey, USA. August.
01719007
Doug Wechsler / Horse guard wasp (Stictia carolina) digging burrow in sand, Pinelands National Reserve, New Jersey, USA. August.
Horse guard wasp (Stictia carolina) in flight, Pinelands National Reserve, New Jersey, USA. August.
01719006
Doug Wechsler / Horse guard wasp (Stictia carolina) in flight, Pinelands National Reserve, New Jersey, USA. August.
Horse guard wasp (Stictia carolina) digging burrow in sand, Pinelands National Reserve, New Jersey, USA. August.
01719005
Doug Wechsler / Horse guard wasp (Stictia carolina) digging burrow in sand, Pinelands National Reserve, New Jersey, USA. August.
Horse guard wasp (Stictia carolina) portrait, Pinelands National Reserve, New Jersey, USA. August.
01719004
Doug Wechsler / Horse guard wasp (Stictia carolina) portrait, Pinelands National Reserve, New Jersey, USA. August.