144 
Psyche 
[October 
black, siibshining, mainly black-hairy, dorsal fringe transverse 
and black, declivous beneath fringe and not emarginate but with 
strong central broad projection, lateral valves spoon-shaped, 
the inferior margin entire, without tooth below but with slight 
basal umbo, venter uniformly gray pollinose and with an abund- 
ance of fine whitish hairs. Legs coated with gray pollen, front 
femora with two preapical extensor bristles, hind femora with a 
complete row of black bristles along upper anterior face, bristles 
of tibiae and tarsi black, hairs of legs abundant, fine and white, 
pulvilli alutaceous. Wings hyaline, veins black, anterior cross- 
vein at two-fifths the length of the discal cell, halteres yellow, 
the base brown, calypteres and fringe yellow. 
Female . — Facial hairs more yellowish, ovipositor black 
polished, short, carina usually black. 
Types. — Wawawai, Washington, May 20, 1911 (Melander) 
Eighteen paratypes from same locality and from Wilbur, and 
Yakima (Jenne) Wash. Most of the specimens were taken in 
the month of April. 
Lasiopogon trivittatus, sp. nov. 
Female . — Length 7 mm. Entirely black in ground color, 
the halteres and calypteres pale fuscous, the carina of the ovi- 
positor castaneous, upper part of head yellowish-gray, bristles 
and hairs black, face whitish, its hairs nearly white with slightly 
yellowish tinge, lower pile of occiput fine and white. Thorax 
thickly coated with cinereous pollen, the dorsocentral stripes 
full brown, a median stripe of similar brown color and supraalar 
indications of lighter brown; bristles prominent and black, a 
strong presutural dorsocentral present, scattered black setulse on 
anterior portion of mesonotum; scutellum densely cinereous, 
bare except for black marginal bristles and setula; pleurae 
heavily coated with cinereous, almost pruinose, a slight tinge 
of yellowish developed beneath root of wing. Abdomen 
scarcely at all shining, first segment wholly cinereous, 
second to seventh segments fulvous over greater portion, the 
posterior margins narrowly cinereous, the gray color extending 
forward at the sides to merge into the fulvous, no long pile, hairs 
