150 NEW YORK STATE MUSEUM 
with yellowish white scales. Scutellum reddish brown with a few 
coarse setae apically, postscutellum darker. Abdomen a rich 
dark brown, the first segment rather broadly banded posteriorly 
with silvery white, the others with submedian rows of small, lunate | 
silvery white spots and sublateral rows of rather prolonged, silvery 
white spots, particularly on the second, third and fourth segments, 
venter suffused with silvery white, genitalia fuscous. Halteres a 
nearly uniform yellowish orange. Legs mostly a dark brown, the 
basal half of femora, the femoro-tibio articulation, the extremity 
of the tibiae and narrow basal annulations on the tarsal segments 
yellowish white, the bands wider on the posterior legs. 
Female. Length 2.3mm. Antennae with 20 segments. Meso- 
notum dark brown, sparsely margined laterally and anteriorly 
with rather long, yellowish hairs, the submedian lines rather 
thickly ornamented posteriorly with yellowish hairs. Other © 
markings about as in the opposite sex. 
Bred from a fusiform stem gall on hedge bind-weed, Convol- 
V whwse se paiwm,. Mayra coo7 
Type Cecid. ar465, N. Y. State Museum. 
Lasioptera cylindrigallae n. sp. 
Male. Length 2 mm. Antennae extending to the base of the 
abdomen, dark brown, sparsely haired, 15 or 16 segments; face 
with a conspicuous patch of silvery white scales, the eyes distinctly 
margined posteriorly with a rather broad band of silvery white 
scales. Mesonotum dark brown, variably margined laterally and 
anteriorly with silvery white and yellowish scales, the submedian 
lines rather sparsely clothed with golden yellow hairs, the median 
and sublateral areas rather uniformly clothed with short, golden 
yellow hairs. Scutellum dark brown with numerous yellowish 
setae apically, postscutellum dark brown. Abdomen dark brown 
with large, submedian rows of lunate, silvery white spots, the 
latter on the posterior margins of the segments and extending to 
the lateral line; genitalia dull yellowish, slightly fuscous apically, 
venter suffused with silvery white scales. Halteres a nearly uni- 
form pale yellowish. Legs with coxae mostly fuscous, the base of 
femora yellowish white, the distal portion of tibiae and tarsi dark 
brown, the latter darker. 
Female. Length 2.5 mm. Antennae with 21 to 22 segments. 
Color characters about as in the opposite sex. 
ve * 
