I48 NEW YORK STATE MUSEUM 



Male. Length 2 mm. Antennae dark brown, basally fuscous 

 yellowish; 21 segments, the fifth with a length somewhat greater 

 than the diameter; terminal segment reduced, irregularly sub- 

 globose. Palpi; the first segment irregularly subrectangular, the 

 second about the same length, broader, irregularly suboval, the 

 third a little longer and more slender than the second, the fourth 

 about one-half longer than the third; face rather sparsely clothed 

 with whitish scales, eyes rather small, distinctly and rather narrowly 

 margined posteriorly with silvery white. Mesonotum dark brown, 

 submedian lines thick with long, golden yellow scales; laterally 

 there is a narrow margin of yellowish and silvery white scales, the 

 remaining surface clothed with fine, yellowish scales. Scutellum 

 dark brown, with rather numerous yellowish setae apically, 

 post scutellum a pale orange. Abdomen dark brown with sub- 

 median rows of rather large, lunate, silvery white spots, each on 

 the posterior margin of segments one to six, the seventh segment 

 and genitalia yellowish orange. Wings hyaline, costa dark brown, 

 except for the rather small, pale yellowish discal spot just beyond 

 the middle, the third vein uniting with costa near the middle. 

 Halteres semitransparent basally, pale orange distally. Legs with 

 coxae and basal portion of femora pale yellowish, the remainder 

 dark brown; the tarsi slightly darker; claws rather long, strongly 

 curved, the pul villi as long as the claws. Genitalia; basal clasp 

 segment long, slender; terminal clasp segment swollen basally; 

 dorsal plate broad, broadly and roundly excavated; ventral plate 

 broad, narrowly rounded; harpes long, stout, slender, distally. 



Female. Length 3 mm. Antennae dark brown, basally yellowish; 

 25 segments, the fifth with a length scarcely equal to its diameter; 

 terminal segment somewhat prolonged, broadly oval. Palpi; the 

 first segment presumably short, subquadrate, swollen distally, 

 the second stouter, broadly rounded basally, the third a little longer, 

 more slender, the fourth one-third longer than the third. Face 

 with a conspicuous patch of silvery white scales. Mesonotum 

 dark brown, the submedian lines rather thickly clothed with golden 

 yellow scales; yellowish and silvery white scales border the meso- 

 notum laterally, the surface is sparsely clothed with fine, yellowish 

 scales. Scutellum reddish brown, with a few yellowish setae apically, 

 postscutellum deep red. Abdomen dark brown with submedian 

 rows of rather large, lunate, silvery white spots on the posterior 

 margin of each segment, the sixth segment with none, the seventh 

 pale yellowish with a small fuscous spot dorsally, the ovipositor 

 and venter pale yellowish, the latter suffused with silvery white 

 scales. Wings hyaline, costa dark brown, the rather small, yellowish 

 discal spot near the distal third, the third vein. uniting with the 

 margin near the middle. Halteres yellowish transparent basally, 

 pale orange distally, the coxae and femora basally pale yellowish, 

 the other portions of the legs mostly dark brown, the tarsi somewhat 

 darker; claws rather long, stout, strongly curved, the pulvilli as 

 long as the claws. Ovipositor as long as the abdomen; laterally 

 an oval patch of stout, halberd-shaped spines; terminal lobes very 



