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Invertebrate Photographs - Diptera (true flies)
Feel free to use these photographs on any of your government, citizen or not-for-profit Web sites. We ask that you credit this Web site page and acknowledge the name of the photographer in the alt tag. Please email us if you need higher resolution photos or permissions for other purposes. All photographs marked with ESC were taken at USEPA's Region 3 Environmental Science Center at Fort Meade, Maryland. Many thanks to Dave Russell, invertebrate biologist, for arranging the instruction and assistance with the use of the Olympus SZX12 miscroscope with an Olympus model DC330 optical mount. Other photos were taken under contract to EPA by EcoAnalysts, Inc.
Also see our pages on crane flies, black flies and midge flies for more information.
True Flies (Diptera)
Ceratopogonidae (Biting Midges)
 Biting midge ESC |
 Biting midge (note head capsule) ESC |
 Probezzia sp. Note: stout setae on anal segment ESC |
Chironomidae
Culicidae (Mosquitos)
 Mosquito (Culicidae) (note siphon that extends out of the water and functions as a breathing tube) |
Simuliidae (Black Flies) - see our indicator page on Black Flies and our taxonomic key including larval Black Flies(48pp, 1.8 MB, About PDF)
 Simulium sp. Simuliidae ESC |
 Cnephia sp. Simuliidae ESC |
 Simulium sp. Simuliidae ESC |
 Greniera sp. Simuliidae |
 Greniera sp. Simuliidae head |
 Prosimulium sp. Simuliidae head |
Tipulidae (Crane Flies) - see our indicator page on Crane Flies
 Hexatoma sp. Note: Swollen 7th abdominal segment. ESC |
 Hexatoma sp. Note: Retracted head capsule ESC |
 Crane fly (Tipulidae) (note head capsule partially exposed) ESC |
 Dicranota sp. ESC |
 Dicranota sp. Note: ProlegsESC |
 Dicranota sp. extracted head capsuleESC |
 Antocha sp. |
 Crane fly (Tipulidae) |
Other Families
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 Dixa sp. Dixidae |
|
 Atherix sp. Athericidae |
 Sciomyzidae |
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