Handbook of Medical Entomology

by William A. Riley; O. A. Johannsen

bb. Hypopleuræ with a vertical row of macrochætæ.

c. Eyes pubescent.

d. R₁ ends about opposite the r-m crossvein; basal section of R₄₊₅ bristly nearly to the crossvein; S. enigmatica. Africa. Somalia Hough

dd. R₁ ends distad of the r-m crossvein.

e. Eastern hemisphere. Australasia. N. ochracea, dasypthalma. Neocalliphora Br.

ee. Western Hemisphere. T. muscinum. Mexico. Tyreomma V. d. W.

cc. Eyes bare.

d. The vibrissal angle situated at a noticeable distance above the level of the margin of the mouth.

e. Sternopleural macrochætæ arranged in the order 1:1.

f. Genæ with microchætæ.