122 NEW YORK STATE MUSEUM 
with brownish hairs. Scutellum reddish brown; postscutellum 
dark brown. Abdomen rather light brown with a yellowish cast 
laterally. Legs pale brown, lighter ventrally; tarsi a little darker. 
Taken on basswood at Westfield, N.Y. May 23, 1906. 
Type Cecid. 83, N. Y. State Museum. 
Oligotrophus brevicornis n. sp. 
Male. Length 1 mm. Antennae extending to the base of the 
abdomen, rather thickly haired, dark brown, yellowish basally, 12 
segments. Face pale yellowish; mesonotum dark brown, submedian 
lines yellowish, sparsely ornamented with fine setae. Scutellum 
reddish orange; postscutellum dark brown. Abdomen a nearly 
uniform fuscous yellowish. Genitalia somewhat fuscous; legs a 
nearly uniform pale straw, the distal segments dark brown. 
Taken on Solidago at Nassau, N.Y. June 14, 1906. 
Type Cecid. 281, N.Y. State Museum. 
Oligotrophus azaleae n. sp. 
Male. Length1.5mm. Antennae not extending to the base of 
the abdomen, sparsely haired, light brown, 12 segments. Mesono- 
tum dark brown with submedian lines of dark hairs. Scutellum 
reddish brown; postscutellum lighter; abdomen yellowish. Geni- 
talia dark brown; femora and tibiae yellowish brown; tarsi brown 
tinged with reddish, the 2d tarsal segment more than twice the 
diameter of the following one, and as long as the 3d and 4th com- 
bined. 
Taken on azalea at Albany, N.Y. May 18, 1906. 
Type Cecid. 48, N.Y. State Museum. 
Oligotrophus aceris n. sp. 
Male. Length.75 mm. Antennae extending to the 3d abdomti- 
nal segment, sparsely haired, dark brown, 13 segments. Face and 
mesonotum dark brown, the latter with distinct submedian lines 
of yellowish hairs. Scutellum reddish brown; postscutellum yel- 
lowish. Abdomen dark brown, sparsely clothed with yellowish 
hairs; legs reddish brown and yellowish, lighter ventrally, the 
deeper color at the extremities of the femora, distally on the tibiae 
and on the distal tarsal segments. 
Taken on soft maple at Albany, N.Y. May 21, 1906. 
Type Cecid. 66, N.Y. State Museum. 
