Numbers
72 spp. in 16 genera in our area
(1), >400 spp. in 34 genera worldwide
(2)
Subfamilies & Genera: (3)(4)(5)(6)
Aspistinae
Aspistes - 4 spp
Arthria - 3 spp
Ectaetiinae
Ectaetia - 2 or 3 spp
Psectrosciarinae
Anapausis - 3 spp
Psectrosciara - 11 spp
Scatopsinae
Abrhexosa - 3 spp
Akorhexoza - 1 sp, more in Mexico
Apiloscatopse - 3 spp
Aztecatopse - 1 sp (CA), more in central Mexico
Coboldia - 1 sp
Colobostema - 4 spp
Cooka - 6 spp
Holoplagia - 1 sp (CA, FL, Hawaii)
Parascatopse - 3 spp
Quateiella - 2 spp
Reichertella - 3 spp
Rhegmoclema - 6 spp
Rhegmoclemina - 5 spp
Rhexoza - ?? spp
Scatopse - 3 spp
Swammerdamella - 10 spp
Identification
Veins along wing margin strong, while remaining veins are generally weak. Short antennae. Fork of Cu at wing base; similar Bibionomorpha have fork far more distal.
key to world genera in
(7)Food
Adults sometimes on flowers
Life Cycle
Larvae feed on decaying organic matter, such as detritus or excrement; more in
(8)