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Genus Sciapus

Fly - Sciapus pallens - male Slightly shriveled, weird-looking Diptera...>. - Sciapus Longlegged Fly - Sciapus tener - male Very thin, Long-legged fly? - Sciapus - male Very thin, Long-legged fly? - Sciapus What bug please? - Sciapus platypterus - male What bug please? - Sciapus platypterus - male Long-Legged Fly - Sciapus - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Orthorrhapha)
Superfamily Empidoidea
Family Dolichopodidae (Longlegged Flies)
Subfamily Sciapodinae
Genus Sciapus
Identification
Key in Steyskal, 1966, Proceedings of the Entomological Society of Washington 68:290-294 (1)

Modifications to Steyskal's 1966 key are in Steyskal 1973. (2)
Range
In North America mainly restricted to eastern USA.
Habitat
More likely to be found on vertical surfaces than related genera, which spend much of their time on large, more or less horizontal leaves.
Remarks
About 8 species in North America.

Tener, filipes, and delicatus are shining species. Males are distinctive with very long legs and slim abdomen.
Rutilus and nebraskensis are very small, possibly female and male of the same species.
Pallens and wiedemanni are similar dull colored species distinguished primarily by the fore legs of males.
Platypterus males have broad, wedge-shaped wings and tarsomere 3 and basal half of tarsomere 4 of mid leg flattened and white. (Pallens has white on fore tarsi.)
Works Cited
1.A new species of Sciapus from California, with a revised key to the species of Sciapus found in America north of Mexico
G.C. Steyskal. 1966. Proceedings of the Entomological Society of Washington 68(4): 290-294.
2.Notes on southeastern North American species of Condylostylus and Sciapus (Diptera: Dolichopodidae)
G.C. Steyskal. 1973. The Florida Entomologist, 56 (4): 359-360.