126 NEW YORK STATE MUSEUM 



Male. Length i mm. Antennae dark brown; 18 segments, the 

 fifth with a length a little less than the diameter; terminal segment 

 slightly prolonged, ovoid. Palpi; the first segment short, subquadratc, 

 the second ' nearly twice as long, a little stouter, subrectangular, 

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

 slender than the third, face yellowish brown with patches of whitish 

 hairs, eyes large, black, margined posteriorly with silvery white 

 hairs. Mesonotum dark brown, sparsely margined anteriorly and 

 laterally with silvery white scales, posteriorly with a conspicuous 

 patch of the same. Scutellum pale orange, apically with numerous 

 whitish hairs, postscutellum dark orange. Abdomen dark brown, 

 the first segment clothed with silvery white scales, the second, 

 third and fourth segments, each with subquadrate submedian spots 

 of yellowish white scales, fifth segment with a few whitish scales 

 sublaterally, sixth with a few median ones along the posterior margin 

 and a small lateral group of the same color. Wings hyaline, costa 

 basally dark brown, the third vein uniting with the inconspicuous 

 discal spot at the basal third. Hal teres whitish transparent basally., 

 yellowish apically. Legs a rather variable yellowish transparent 

 with some dark brown dorsally, tarsi largely and irregularly tinged 

 with carmine; claws stout, uniformly curved. Genitalia (pi. 7, fig. 2) ; 

 basal clasp segment long; terminal clasp segment swollen at the 

 basal fourth; dorsal plate broad, deeply incised, the lobes narrowly 

 rounded; ventral plate narrow, broadly rounded. Harpes sub- 

 triangular; style short. Type Cecid. 183a. 



Lasioptera nassauensis Felt 

 1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 324 

 The female representing this form was taken on a window at 

 Nassau, N. Y., July 1, 1906. 



Female. Length 1 mm. Antennae dark brown; 22 segments, the 

 fifth with a length about three-fourths its diameter ; terminal segment 

 reduced, narrowly oval. Palpi; the first segment short, stout, 

 swollen distally, the second a little longer, roundly rectangular, the 

 third one-half longer than the second, more slender, the fourth 

 one-half longer and more slender than the third. Face thickly 

 clothed with yellowish hairs. Mesonotum dark brown, margined 

 anteriorly and. laterally with yellowish white. Scutellum purplish 

 brown, postscutellum presumably dark brown. Abdomen dark 

 purplish brown, the basal segment covered with silvery white scales, 

 the others with indistinct silvery white submedian spots. Wings 

 subhy aline, costa dark brown, the third vein uniting with costa 

 at the basal third. Halteres yellowish orange basally, -pale yellowish 

 apically. Coxae pale yellowish orange, the femora mostly pale 

 yellowish, the anterior tibiae dark brown, the middle and posterior 

 tibiae with a line of dark brown, mostly yellowish; tarsi a nearly 

 uniform dark brown; claws long, slender, strongly curved, the 

 pul villi about as long as the claws. Ovipositor about as long as 

 the abdomen; terminal lobes long, slender. Type Cecid. 432. 



