Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Species Taeniaptera trivittata

Taeniaptera trivittata Stilt Legged Flies Taeniapterinae - Taeniaptera trivittata - male - female 26aug2012-dip1 - Taeniaptera trivittata Stilt-legged Fly - Taeniaptera trivittata Taeniaptera trivittata??? - Taeniaptera trivittata fly at the fish restaurant? - Taeniaptera trivittata fly at the fish restaurant? - Taeniaptera trivittata Interesting behavior with what I believe are 2 stilt-legged flies  Image 2 of 6 - Taeniaptera trivittata
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Superfamily Nerioidea
Family Micropezidae (Stilt-legged Flies)
Subfamily Taeniapterinae
Genus Taeniaptera
Species trivittata (Taeniaptera trivittata)
body length circa 10 mm (1)
Body chestnut brown, wings patterned, including whitish semi-circular mark.

Waves white-tipped front legs like wasp antennae, though overall appearance suggests mimicry of ants (2). Marshall (3) suggests members of this family are wasp or ant mimics.
Eastern United States, south and west at least as far as the Lower Rio Grande Valley of Texas
Deciduous forests, or wet areas with emergent vegetation.
May-June. LRGV records in May (twice) and September (once)
See Also
Rainieria (below) has a shiny thorax.

Print References
Arnett, p. 889--description (1)