SuBFAMILY CALLIPHORINAE 293 
strong, slightly above the oral margin; proboscis three-fourths 
head height, haustellum about two-fifths head height; palpus 
clavate as long as or slightly longer than haustellum; antenna at 
or slightly below eye-middle when head .is viewed in profile, the 
bases approximated or only slightly separated by narrow carina, 
third segment elongate, reaching from four-fifths to nine-tenths 
the distance to the vibrissa; arista with apical segment one-third 
longer than third antennal segment, with long cilia above and 
below for from two-thirds to four-fifths its length. 
Thorax with propleural bristle strong; preintraalar bristles 
three; posthumeral bristle present; presupraalar bristle one; 
mesopleuron and sternopleuron setose except on anteroventral 
margins; sternopleural bristles three, arranged 2 + 1, the two 
anterior bristles close together; hypopleuron bare on anterior 
half or more; pteropleuron bare on anterodorsal fourth but 
with a well-defined tuft of longer setae near center; squamo- 
-pleuron with a nap of short fine pubescence; prosternum short 
and wide, setose; postalar declivity with setae in center; tym- 
panic pit with a few hairs on posterior margin, the ridge sparsely 
setose toward base; postacrostichal and postdorsocentral bristles 
three; intrapostalar, intrapostsutural and intrapostsupraalar 
bristles absent; mesospiracular bristle strong, in center of pre- 
sternopleural area; metathoracic spiracle oval, directly below 
squamopleuron, without long hairs on margins; mesothoracic 
spiracle with tawny brown hair; scutellum with one subapical 
diseal bristle and with four or five lateral scutellar bristles, the 
basal lateral bristle often weak and sometimes absent; lateral 
postseutellar plates with tuft of short setae. 
Legs with claws and pulvilli about as long as or but slightly 
shorter than last tarsal segment; fore tibia with dorsal row of 
short bristles and with one posterior bristle between middle and 
apical third; middle femur with an anteroventral and a postero- 
ventral row of bristles; middle tibia with two ventral bristles 
near middle; hind femur with anterodorsal row of short bristles 
among which are several long bristles, usually one near basal 
third, one near middle, and one near apical fourth. 
Wing without costal spine; subcostal sclerite pubescent; third 
vein with three to five short setulae at base; fourth vein without 
fold or spur, the angle 90°, the apical cross vein sharply curved 
toward apex of costa near wing-tip; anterior cross vein at middle 
of second section of fourth vein and strongly oblique; apical cross 
vein strongly doubly arcuate; seventh vein long and straight. 
Abdomen with scutellar depression extending to posterior 
