Larvae of most Picture-winged Flies (127 NA spp) feed on decaying vegetation
while a few are root feeders. The 10+ species are infrequently collected.
Perhaps most common is Chaetopsis
spp and Herina sp.
Both have metallic green bodies with faint black banding on the wings.
Euxesta?
sp appears to be associated with Lathyrus venosus. Others collected
include Steneretma laticauda,
Seiopteravibrans,
Pseudotephritis
vau,
Pterocalla strigula,
and
Melieria sp. Physiphora
demandata has been observed coaxing honeydew from aphids on burdock
with its forelegs.
