Handbook of Medical Entomology

by William A. Riley; O. A. Johannsen

i. Abdomen without macrochætæ; arista plumose. C. asiatica. Eastern Hemisphere. Cryptolucilia B. B.

ii. Abdomen with strong macrochætæ; arista very short-plumose, nearly bare. B. tachinina. Brazil. Reinwardtia B. B.

gg. Eyes bare.

h. Body densely pilose; thoracic macrochætæ wanting; middle tibiæ much elongate and bent; last section of R₄₊₅ with a gentle curve. H. (Mesembrina) mystacea, et al., Europe and H. solitaria, N. America. Hypodermodes Town.

hh. Body not densely pilose.

i. Dorsocentrals six; last section of R₄₊₅ with a gentle curve.

j. Inner dorsocentrals ("acrostichals") wanting; sternopleurals arranged 1:3. P. cyanicolor, cadaverina, etc. Europe and America. Pyrellia R. D.

jj. Inner dorsocentrals ("acrostichals") present; sternopleurals arranged 1:2. E. latreillii. North America. Eumesembrina Town.

ii. Dorsocentrals five; inner dorsocentrals present; last section of R₄₊₅ with a rounded angle; sternopleurals arranged 1:2. P. cornicina Europe and America. (Pseudopyrellia Girsch.) Orthellia R. D.

ee. Middle tibia without a prominent bristle on the inner surface beyond the middle.