SuBFAMILY CALLIPHORINAE 217 
toward epistoma, black above, with silvery pollen, about one and 
one-half times as long as wide; facial carina slightly developed 
between basal segments of antennae; parafaciale 1.1 in width 
opposite lunule and only slightly wider below, with bright silvery 
gray pollen; faciale with several rows of short black setae which 
ascend about one-fourth the distance to the antennal base; vi- 
brissae placed 0.8 above the oral margin and set 2.3 apart; pal- 
pus 3.7 in length, brown; third segment of antenna three times 
as long as second and reaching four-fifths the distance to the vi- 
brissa; arista with black cilia; back of head dorsally slightly 
flattened, rounded below, black, with thin silvery pollen around 
occiput, with three or four rows of postocular cilia and black 
hair. 
Thorax shining metallic blue green with bronze colored re- 
flections, somewhat purplish in certain lights, with ‘only thin 
silvery pollen except on pleura, with indication of longitudinal 
stripes lateral to acrostichal row of bristles which do not extend 
posteriorly much further than suture; humeral bristles three 
strong and one weak, the latter placed between and slightly an- 
terior to the two median bristles; propleural bristles two, strong; 
preintraalar bristles three; preacrostichal bristles two, the hind- 
most placed 2.2 before the suture; predorsocentral bristles three, 
hindmost placed 1.2 before the suture; presupraalar bristle one; 
prosternum of medium size, widening slightly anteriorly, with 
black setae laterally; sclerites at wing base dark brown to black; 
greater ampulla dark brown, brown pubescent; postacrostichal 
bristles two; mesospiracular bristles two; thoracic spiracles 
smaller than in most species of Luciliini and with dark brown 
hair; scutellum with under surface laterally with black hair, one 
discal bristle placed about one-third the length of the scutellum 
before the apical lateral bristles, and four lateral bristles. 
Legs black; fore tibia with posteroventral bristle near apical 
third; middle femur with two or three anteroventral bristles near 
middle and about four posteroventral bristles near middle; mid- 
dle tibia with one ventral bristle and one posterodorsal bristle 
near apical third; hind tibia with a series of about four antero- 
dorsal bristles basally, two anteroventral bristles set close to- 
gether at apical third, and two posterodorsal bristles, one near 
basal fourth and one near apical fourth. 
Wing hyaline tinged with brown basally; basicosta dark brown 
to black; subcostal sclerite brown to black with brown pubescence; 
costal spine weak but discernible; costal sections 2 to 6 in the pro- 
portion 65:35 :90:30:9; third vein setulose about 0.55 the dis- 
tance to the cross vein; fourth vein with second and third sece- 
