Handbook of Medical Entomology

by William A. Riley; O. A. Johannsen

qq. Media branched.

r. Hind femur much swollen and spined. America and Europe. Serromyia Meg.

rr. Hind femur not distinctly swollen.

s. Cell R₁ not longer than high; fork of the media distad of the crossvein; wing with microscopic setulæ. Stilobezzia Kieff

ss. Cell R₁ elongate.

t. Femora unarmed. Widely distributed. (= Sphaeromias Kieff. 1913 not Curtis?). Johannseniella Will.

tt. Femora, at least in part, with strong black spines. Widely distributed. Palpomyia Megerle

oo. R₂₊₃ coalescent with R₄₊₅ hence cell R₃ is obliterated.

p. In the female the lower branch of the media with an elbow near its base projecting proximad, the petiole of the media coalescent with the basal section of the radius, wing long and narrow, radial sector ending near the tip of the wing; venation of the male as in Bezzia; front concave. United States. Stenoxenus Coq.

pp. Venation otherwise, front not concave.