1924] New Calyptrate Diptera from New England 193 
NEW AND LITTLE-KNOWN CALYPTRATE DIPTERA 
FROM NEW ENGLAND. 
By J. R. Malloch. 
Biological Survey, Washington, D. C. 
The first three species belong to the family Scatophagidae, 
the others to the Muscidse (^Anthomyiidse auct.). 
Microprosopa flavinervis sp. nov. 
Male. — Head yellow, interfrontalia more rufous; ocellar 
triangle and upper half of occiput fuscous, gray pruinescent; 
second antennal segment and arista yellow, third antennal seg- 
ment black; palpi whitish yellow; vibrissse and genal bristles 
luteous; orbital, vertical, and ocellar bristles black. Thorax 
black, densely gray pruinescent. Abdomen tawny, fuscous 
dorsally on basal half. Legs, including coxae, yellow. Wings 
yellowish, veins yellow. Halteres yellow. 
Upper three orbital bristles nearer eye than lower three, the 
second and third curved forward and outward, the lower three 
incurved; arista almost bare; vibrissae duplicated; eye a little 
longer than high, slightly pear-shaped, the narrow extremit,y in 
front. Dorsocentral bristles rather short, two pairs in front of 
suture; scutellum with four equal bristles. First and fourth 
visible tergites longer than second and third, fifth a little longer 
than fourth, not extending to margin on left side; sixth tergite 
as long as fifth; hypopygium large, occupying nearly half of 
length of venter; processes of fifth sternite robust, obtuseW 
pointed. Fore and mid tibiae each with a fine median ante- 
rodorsal bristle; hind femur without distinct antero ventral 
bristles; hind tibia with one posterodorsal and one or two ante- 
rodorsal bristles. 
Length, 5 mm. 
Type and paratype, Auburndale, Mass., May. 
