360 THE BLOWFLIES OF NortTH AMERICA 
brownish black; antennal segments orange brown; third segment 
one and one-half times as long as second, reaching about two- 
thirds the distance to the vibrissa; arista with short plumosity 
above and below nearly to apex; back of head with three or 
four rows of postocular cilia and with rather abundant brownish 
to black hair. 
Thorax black with thin whitish pollen and here longi- 
tudinal stripes; pleura mostly black but sometimes with thin 
whitish pollen; anterior acrostichal bristles two, the posterior 
one 1.0 before suture; hindmost predorsocentral bristle 0.6 before 
suture; sclerites at wing base black, greater ampulla with fine 
decumbent whitish pile; postacrostichal bristles two; spiracles 
with black hair; scutellum with two discal bristles, one apically 
and one laterally; lateral bristles four, the subbasal, the basal, 
and the subapical ones strong, lateral margins with brownish 
black hair. 
Legs black; middle femur with about tree anterior bristles 
near middle, ‘ue or five anteroventral bristles in row toward 
base, and ret four ventral bristles toward base; middle tibia 
with one or two anterodorsal bristles near middle, two posterior 
bristles near middle, and one posterodorsal bristle near middle; 
the middle tibia has no ventral bristles and the hind tibia no 
posteroventral bristles. Y 
Wing tinged with orange brown, strongly so basally; costal 
spine minute but present; costal sections 2 to 6 in the proportion 
15:40 :110 :44:4; subcostal sclerite black; fourth vein without 
apical section or fold and bent at a 45-degree angle toward apex; 
apical cell open and ending considerably before wing tip; apical 
cross vein sinuate only toward wing margin; anterior cross vein 
oblique, doubly arcuate; last section of fifth vein 0.15 as long 
as preceding section; squamal lobes tinged with yellow orange 
to brown. 
Abdomen black, with thin silvery pollen, the pattern even 
and the ground color shining in certain lights; third segment 
with some erect setae; third and fourth segments each with a row 
of marginal bristles. Genital segments (pl. 31, H and G) as 
illustrated. | 
Female. Unknown. 
Length. 8-9 mm. 
Type. Male, No. 54939, U. S. National Museum. 
Type locality. San Bernardino Co., Calif. 
The type series was collected as follows: San Bernardino, 
Calif. (May, Coquillett); Claremont, Calif. (Metz); San Diego, 
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