70 
Psyche 
[September 
Chironomus varipennis Coquillett 
Male. — Dark brown. Head brown ; antennse yellow, 
plumes concolorous, scape dark brown; palpi yellowish. 
Thorax brown, mesonotum and pleurse with uneven silvery 
pruinescence ; scutellum brown ; postnotum brown with two 
lateral pruinescent spots; halters yellowish white. Abdo- 
men fuscous, the posterior margin of segments narrowly 
pruinescent; sixth, seventh and eighth blackened dorsally. 
Legs brown with whitish tarsi ; fore femora brown with 
wide central yellow bands ; fore tibiae brown with distinct 
pre-apical yellow rings ; fore metatarsi whitish, apices nar- 
rowly brown, more than twice as long as fore tibiae (34-15) . 
Mid and hind legs clothed with long yellow hairs; femora 
yellow, bases brown; tibiae yellow with narrowly brown 
apices ; tarsi yellowish white, all segments narrowly brown 
at apices. Wings whitish, with eleven pale blackish spots, 
iridescent in reflected light and located as follows : three in 
a row behind the cubitus, one before middle and another in 
middle of apical margin of (Cui) , one in base of cell (R 4+5 ) , 
another in cell below it, a third midway between the latter 
and base of this cell, one in middle and another at apex of 
cell ( R 4 + 5 ) , and a small spot at apex of cell (M 4 ) . Hypopy- 
gium with side piece terminating in large blunt cylindrical 
appendage, not densely clothed with long hairs, the dorsal 
spine short and inconspicuous. 
Female. — Similar to the male in coloration, but in some 
specimens the thorax may be almost black and the abdom- 
inal segments more extensively pruinescent. 
Length. — 3 mm., coll, by Nathan Banks, Falls Church, 
Va. June. 
Chironomus pseudofasciata sp. nov. 
Male. — Blackish brown, shining. Antennse dark brown; 
plumes fuscous, scape blackish. Thorax dark brown, 
shoulders with silvery pruinescence ; a median silvery stripe 
extending half way from prescutum to scutellum ; on either 
side of mesonotum, a narrow silvery stripe extending from 
silvered shoulder to base of scutellum. The thoracic mark- 
ings obscure in some specimens. Halters yellowish white. 
Abdomen blackish; segments with narrow silvery apical 
bands, widened medially to form V-shaped spots. Legs 
