356 
LEUCOPOMYIA PULVINARIAE, Sp. Nl. 
Male and Female—Black, opaque, densely pale gray pruinescent. 
Antennae black, basal two segments brownish, grayish pruinescent, third 
segment slightly brownish on inner side at base; palpi yellow; frontal 
triangle, orbits, and lunule whitish gray; ocelli reddish. Mesonotum 
with two broad brown sublateral vittae which do not extend to posterior 
margin, the submedian vittae pale gray and indistinct. Abdomen with 
basal tergite except its posterior margin black, second with a pair of 
black spots at base in center, third and fourth each with a rather in- 
distinct black median spot at base in center. Legs yellowish testaceous, 
the femora except apices dark gray. Wings whitish, veins, except sixth, 
pale brown except at bases. Calyptrae white. Halteres cream-colored. 
Frons above antennae one third of the head-width, narrowed pos- 
teriorly, at vertex about two thirds as wide as at anterior margin; ocelli 
in an equilateral triangle; each orbit one third as wide as interfrontalia, 
densely hairy; ocellar triangle extending to anterior margin of frons, 
usually densely hairy ; lunule large, rounded above, the surface with some 
minute hairs; third antennal segment not as long as wide; second seg- 
ment of arista about four times as long as thick; face slightly receding; 
genal bristle strong. Thoracic dorsum rather densely setulose, at middle 
with about eight series of setulae between the vittae, the median setulae _ 
not. forming two distinct stripes except near anterior margin; a very 
strong pair of praescutellars present; sometimes there are three pairs of 
dorsocentrals present, the anterior pair weak. Abdominal tergites sub- 
equal. Legs stout, without bristles except at apex of mid tibia on ventral 
surface; the fore femur of male with a rather dense fringe of minute 
setulae on anteroventral surface. Third and fourth veins with apices 
slightly convergent, penultimate section of latter nearly half as long as 
ultimate; outer cross-vein about three fourths as long as last section 
of fifth vein. 
Length, 2.5 mm. 
Puparium.—Reddish brown, opaque. 
Almost cylindrical, very indistinctly flattened on ventral surface, 
tapered on thoracic segments, where it is depressed on dorsum. Surface 
with very minute setulose armature which is most noticeable, but only 
under a very high-power lens, at posterior extremity on dorsum. An- 
terior spiracles very small. Posterior spiracles sessile, distinguishable 
only under a strong magnification, situated well above the rounded 
caudal extremity, forming with the small anal orifice an almost equilat- 
eral triangle. 
Length, 8 mm.; diameter, 1 mm. 
Type, male, allotype, and 10 paratypes, Shushan, N. Y., July 6, 1916, 
No. a3076, New York State College. Paratypes: female, Chicago, IIl., 
spring, 1907; male, Algonquin, Ill., July 4, 1892. Both the New York 
specimens and the one from Chicago were reared from larvae found 
feeding on the cottony maple-scale (Pulvinaria vitis Linné). 
