SuBFAMILY CALLIPHORINAE , 263 
femur often greenish, with two short anterior bristles near mid- 
dle, an anteroventral row of bristles extending from base to 
about middle, and a posteroventral row of much longer bristles 
which extends from the base to near apical third; middle tibia 
with one anterodorsal bristle near apical fourth, one ventral 
bristle near apical five-eighths, two shorter posterior bristles, 
one near basal three-eighths and one near apical five-eighths, 
and with two posterodorsal bristles of about the same size near 
the same locations; hind femur with a partial posteroventral row 
of bristles extending from base to near middle; hind tibia with 
anterodorsal row of bristles which are short basally and longer 
apically, two anteroventral bristles, one near middle and one near 
apical third, and with a posterodorsal row of bristles, only three 
being long, one near base, one near basal fourth, and one near 
apical fourth; tarsi black, normal; claws and pulvilli black, 
former about two-thirds longer than latter. 
Wing (pl. 9, K) hyaline, usually rather yellowish at base; 
basicosta whitish yellow; costal sections 2 to 6 in the proportion 
76: 49: 89:38: 6.9; subcostal sclerite yellow orange with yellow 
orange pubescence; third vein setulose three-fifths the distance 
to the ecross-vein; fourth vein without apical section or fold, 
the angle rather rounded and entering costal margin 2.0 before 
apex; anterior cross vein at middle of second section of fourth 
vein; posterior cross vein sinuate; last section of fifth vein one- 
fifth the length of preceding section; upper and lower squamal 
lobes white, the lower wide behind. 
Abdomen metallic yellow green, often shining or with thin 
silvery pollen especially below; first segment usually black; sec- 
ond segment with a narrow middorsal black spot on anterior 
margin; second segment with short marginal row of bristles. 
Genital segments small, black, shining, globose, with scattered 
setae, the first without marginal rows of bristles. Internal ana- 
tomical features (pl. 25, F and G) as illustrated. 
Female. Head length 12.6; length at antenna 5.4 and at vi- 
brissa 5.8; length at oral margin 6.0; eye height 6.5; bucea 0.38 
eye height; head height 9.5; front widening only a little anteri- 
orly, the frontal rows slightly converging anteriorly as they fol- 
low the narrowing frontale; front at narrowest (at vertex) 9.38 
of head width, and 0.41 at lunule, with bright silvery pollen; 
outer vertical bristles about two-thirds as long as inner; fronto- 
orbital bristles two proclinate and one reclinate; ocellar bristles 
almost exactly divaricate, and with another smaller pair just 
behind the posterior ocelli; vertex with silvery pollen; parafa- 
ciale opposite lunule 1.8 in width; distance between vibrissae 2.2; 
