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Genus Amblypsilopus

Long Legged Fly? - Amblypsilopus scintillans - male Dolichopodid - Amblypsilopus scintillans - female Longlegged Fly - Amblypsilopus Long-legged Fly - Amblypsilopus dorsalis - female Longlegged Flies Sciapodinae Amblypsilopus scintillans  - Amblypsilopus scintillans - male Dolichopodidae - Amblypsilopus - male Long-legged fly - Amblypsilopus scintillans - male dolichopodid - Amblypsilopus
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 Amblypsilopus
Synonyms and other taxonomic changes
Long considered a synonym of Sciapus, revalidated by Bickel 1994(1).
Checklist(2) lists 16 species north of Mexico. Bickel(1) listed 17 species in the Nearctic region and defined four species groups in the entire New World. One (unnamed) group contains three species (one nearctic) with strong wing markings in both sexes. The psittacinus group includes those species where the male has "distinct crocheted costal cilia" and sometimes more extreme modification; this group has 24 species. The parrai group has six species. An unnamed group contains 26 more species.
While females and some males are identified by fine detail, male secondary sexual characters are sometimes not at all subtle and often allow easier identification. The wing deformation in this photo

is a MSSC of the type species.
Pan-tropical, nearctic
When Bickel redefined and restricted the meaning of other genera of Sciapodinae, many species that were placed in Sciapus by default were transferred here. The genus may be subdivided in the future. The type species was described from Florida and the genus name may remain valid for New World species.
Three of the species groups listed by Bickel (1994, 2009) are found north of Mexico: A. maculata group has a large brown spot on the wing, A. psittacinus group has long cilia on the costa of the male, and an unnamed group has neither of these characters.
Species of Amblypsilopus north of Mexico:
A. costalis: Black antennae, yellow femora, male costa with prominent notch before tip of R2+3. Southeast.
A. dimidiatus: Only species north of Mexico with wing mostly dark. Southwest
A. dorsalis: Thorax yellow with dark metallic stripe.
A. infumatus: Base and tip of wing dark, except in some females. Arizona.
A. pollinosus: Black antennae, body dulled with grayish pruinosity. Southeast.
A. scintillans: Black antennae, body shining blue or green.
A. californicus: Yellow antennae. Only species known from California.
A. floridanus: Fore basitarus of male swollen, tibia bowed out. Base of abdomen with yellow markings.
A. fuscinervis, A. rotundiceps, A. unifasciatus, A. bicolor, A. variegatus: Antennae yellow, abdomen with some yellow. East.
A. psittacinus, A. unicoiensis, A. bradleii: Antennae yellow, wing of male modified at tip.
Print References
Works Cited
1.The Australian Sciapodinae
Daniel J. Bickel. 1994. Australian Museum.
2.Checklist of Dolichopodidae s.str. of America North of Mexico
3.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.
4.Notes on southeastern North American species of Condylostylus and Sciapus (Diptera: Dolichopodidae)
G.C. Steyskal. 1973. The Florida Entomologist, 56 (4): 359-360.