Muscidce 
3°9 
ff. Body black or sordidly metallic greenish gray, usually yellow pol- 
linose or variegate; genae at most hairy above. N. slygia. 
Eastern Hemisphere. Neopollenia Br. 
dd. Vibrissal angle situated nearly on a level of the oral margin, 
e. Species wholly blackish, bluish, or greenish metallic in color. 
f. First section of R4+5 with at most three or four small bristles at 
the immediate base. 
g. The bend of R4+5 a gentle curve; costal spine present; cell R5 
closed, ending before the apex of the wing. 5 . cuprina. 
Java. Synamphoneura Bigot 
gg. Bend of R4+5 angular; or the insect differs in other characters ; 
dorsal surface of the squamula thoracalis hairy (except in 
Melinda)-, arista plumose only on the basal two-thirds 
(except usually in Calliphora and Eucalliphora). 
1G8. Head of horn-fly (Lyperosia irritans); (a) female; (6) male; (c) lateral aspect of female. 
h. Arista plumose only on the basal two-thirds. 
i. Base of the antennae ventrad of the middle of the eye; eyes 
of the male nearly contiguous; genae hairy; second 
abdominal segment with median marginal macrochaetae; 
two, rarely three, postsutural intraalar macrochaetae. 
j. Squamula thoracalis dorsally with long black hairs; male 
hypopgium two-segmented, large, projecting; claws 
and pullvilli of the male elongate; three strong stemo- 
pleural macrochaetae; genae at least half the width of the 
eye; buccae (cheeks) half the height of the eyes; ovivi- 
parous. 0 . sepulcralis. Europe . Onesia R. D. 
jj. Dorsal surface of the squamula thoracalis bare; male 
hypopygium small, scarcely projecting below; claws 
and pulvilli not elongate; two stout stemopleural 
macrochaetae, sometimes with a delicate one below the 
anterior; genae nearly linear in the male ; buccae about 
a third of the eye height; oviparous. M. ccerulea. 
Europe. Melinda. R. D. 
