14 
Psyche 
[March-June 
Legs except for thickened hind femora largely simple. 
The hind femora apicoventrally possesses a low setae-beset 
tubercle. Hind tibiae basally incised. 
Wings Eristaliform. The kink of third vein is formed 
like that of Eristalis rather than Protylocera and there is 
no spur on the kink. 
Genotype: V elocimyia velox, new species. 
Velocimyia velox n. sp. 
Plate II, Figs. 1, 2, 3 
Male. Eyes narrowly touching for less than distance of 
posterior ocelli. Front, face, vertex black, the latter cov- 
ered with dark brown pollen, the front with grey pubescence, 
the face thickly covered with white pubescence. A small 
shining bare space above the antennae without trace of 
wrinkles. No shining median stripe on face, but an obscure 
bare, shining stripe on cheeks. Antennae black, third seg- 
ment grey pollinose or pubescent. Arista two and one-half 
times length of oval third joint, light brown in color, bare. 
Thorax black, with a bluish cast, dully shining, heavily 
dark grey pollinose. Scutellum wide, translucent, yellowish 
brown, without pile, except on the corners, although its 
punctate surface indicates that it was pilose. Pile of thorax 
thick, erect, moderately long, pale in color. Squamae and 
fringe pale yellow, very large. Abdomen with venter and 
hypopygium entirely bright orange with one exception. The 
base of the second segment with a broad basal triangle, its 
apex reaching less than one half of the length of the seg- 
ment, the triangle continued to the first segment, where it 
is bluish black, leaving only the lateral corners of that seg- 
ment pale. Abdomen practically opaque except for the last 
segment. Last two segments and third and fourth with 
parallel sides, narrower than the second. Hypopygium very 
large. Pile of abdomen pale, rather long terminally. 
Legs black, base of face and mid tibiae yellowish brown, 
mid basitarsi dark brown. Hind femora very thick, but 
confined to anterior surface, posterior surface straight, a 
nodular prominence beset with bristles near the apex. Hind 
tibiae opposite nodule of femora noticeably incised, its apex 
spurred. 
