OF WASHINGTON. 167 



segments two to seven, venter black scaled and with a broad fascia of 

 whitish ones on the base of each segment. Legs black scaled, femora 

 with a stripe of yellow ones toward the base of the posterior side, a few 

 on the front side toward the base, a ring of whitish scales at three-fourths 

 the length of the femora, scales at extreme apices of femora and bases of 

 tibiae whitish, tibiae also with a narrow streak of whitish ones extending 

 nearly the entire length of the posterior side, a broad band of whitish 

 ones at two-thirds their length, those at the. apex also whitish, tarsi with 

 a rather narrow band of whitish ones at the base of each joint, tarsal claws 

 not toothed. Wings hyaline, the scales brown the lateral scales of the 

 veins broadly lanceolate, second submarginal cell much longer than the 

 second posterior, about four times as long as its petiole. Length 3 5 mm. 



Panama. Two females collected by Dr. J. W. Ross. 

 Type. No. 7943, U. S. National Museum. 



Tseniorhynchus signipennis, n. sp. 



Distinguished by the apical half of the costa of each wing being covered 

 with light yellow scales with the exception of two patches of black ones. 



9- Brown, varied with yellowish, the bases of the antennae, a broad 

 band at middle of the proboscis, the first tarsal joint except the apex and 

 a ring near the base, also the bases of the following joints, very narrowly 

 on the last two, yellow. Scales of palpi and the upright ones on the 

 occiput mixed black and light yellow, the appressed scales of the occiput 

 and mesonotum light yellow, those on the abdomen chiefly white, on the 

 femora and tibiae mixed black and light yellow, not forming distinct bands 

 or spots, those on the tarsi black except at bases of the joints and the 

 broad median portion of the first, which are chiefly whitish ; on the second 

 joint of the hind tarsi the whitish scales cover its basal half; tarsal claws 

 not toothed. Wing-scales mixed black and light yellow, the former col 

 lected into three spots, two on the apical half of the costa and one on the 

 sixth vein at a point near three-fourths of its length ; scales on apical half 

 of the costa and of the sixth vein wholly yellow with the exception of the 

 patches of black scales ; of the latter, the first one on the costa is slightly 

 longer than the second and equals about one-half of the yellow interval 

 between them ; lateral scales of the veins varying from broadly oblanceo- 

 late to very narrow, almost linear; petiole of the first submarginal cell 

 slightly longer than the cell ; hind cross-vein nearly its own length before 

 the small. Length 3 mm. 



r^. Palpi slender, brown, bases of last two joints and the preceding 

 joint except its apex, vellow ; proboscis reaching slightly beyond base of 

 penultimate joint of palpi ; hairs of .antennae golden yellow, many on the 

 lower side brown. Scales of abdomen mixed brown and whitish. Front 

 and middle tarsi bearing two teeth under one of the claws and one under 

 the other, hind tarsal claws not toothed. Length 4 mm. Otherwise as 

 in the female. 



