3 °° 
Hominoxious Arthropods 
or curved; abdomen usually short or elongate 
oval; sternopleurals, if three are present, 
arranged in the order 1:2 ina right triangle. 
.... (MusciNjE-Anthomyiin.® of Girschner) 
o. M]-j-2 straight, hence cell R5 not narrowed in 
the margin . AnthomytiDjE in part 
p. Underside of the scutellum more or less 
sparsely covered with fine hairs; anal 
vein nearly ahvays reaches the hind 
margin of the wing; extensor surface of 
the hind tibiae with a number of stout 
setae; squamae often small and equal. 
Anthomyia, Chortophila, Eustalomyia, 
Hammomyia, Hylemyia, Prosalpia, Pego- 
myia, etc. . . . HylemyiNjE-Pegomyin.® 
pp. Underside of the scutellum bare; anal 
vein does not reach the wing margin, 
q. First anal vein short, second anal sud¬ 
denly flexed upwards; hind tibiae each 
with one or two strong setae on the 
extensor surface. Fannia ( = Homalo- 
myia), Ccelomyia, Choristoma, Eur- 
yomma, Azelia, etc. FANNIN.E-AZELIN.E 
qq. Anal veins parallel or divergent. 
r. Setae on the exterior surface of the hind 
tibiae wanting (except in Limnaricia 
and Ccenosites), lower squama not 
broadened to the margin of the 
scutellum. Leucomelina, Limno- 
phora, Limnospila, Lispa, Mydaea, 
Spilogaster, etc. 
. MYD.EIN/E-LIMNOPHORIN.E 
rr. One (rarely more) seta on the extensor 
surface of the hind tibia; squamae 
usually large and unequal. Hydro- 
taea, Aricia, Drymeia, Ophyra, 
Phaonia (= Hyetodesia ), Pogono- 
myia, Trichophthicus, etc. Aricine 
00. M1+2 curved or bent, hence the cell R5 more 
or less narrowed in the margin. 
(MusciNiE). MusciDiE in part. See 
page 303 for generic synopsis. 
11 . Hypopleurals present; when three sternopleurals 
are present the arrangement is 2:1 or 1 : 1 : 1 . 
. (Tachinid^e of Girschner) 
m. Conjunctiva of the ventral sclerites of the ab¬ 
domen present, frequently well developed, 
surrounding the sclerites. 
