REPORT OF THE STATE ENTOMOLOGIST I914 



229 



abdominal segment, the wing pads to the third and the leg cases 

 to the fourth; posterior extremity broadly rounded. 



Male. Length 2 mm. Antennae as long as the body, sparsely 

 white-haired, yellowish brown; 14 segments, the fifth with a stem 

 as long as the cylindric basal enlargement, which latter has a length 



Fig. 50 Oligotrophus salicifolius; fifth antennal segment and 

 palpus of male, enlarged (original) 



twice its diameter; terminal segment reduced, narrowly rounded. 

 Palpi; first segment narrowly oval, second one-half longer, slender, 

 third a little shorter than the second. Mesonotum dark reddish, 

 the median area dark brown, the submedian lines thickly haired. 

 Scutellum reddish yellow, postscutellum fuscous. Abdomen sparsely 

 haired, reddish yellow. Costa fuscous straw. Halteres long, 

 yellowish basally, fuscous apically. Coxae fuscous yellowish; 

 femora, tibiae and tarsi fuscous straw; claws slender, evenly curved, 

 the pulvilli longer than the claws. Genitalia reddish brown; basal 

 clasp segment stout; terminal clasp segment swollen, fuscous; dorsal 

 plate long, triangularly emarginate; ventral plate broadly and 

 roundly emarginate. 



Female. Length 2.25 mm. Antennae extending to the base of 

 the abdomen, sparsely haired, yellowish brown; 14 segments, the 

 fifth with a length two and one-half times its diameter; terminal 

 segment slightly reduced, tapering. Palpi nearly as in the male. 

 Mesonotum dark reddish brown, submedian lines sparsely haired. 

 Scutellum yellowish red, postscutellum reddish brown. • Abdomen 

 deep red. Costa fuscous straw. Halteres yellowish basally, fuscous 

 apically. Coxae slaty brown, legs a variable fuscous straw. Ovi- 

 positor fuscous yellowish, as long as the abdomen; terminal lobe long, 

 slender, tapering, narrowly rounded. Type Cecid. a2oi7. 



