132 
Psyche 
[June- August . 
2. Front, face and cheeks entirely ferruginuous or yellowish’ 
second section of costa less than one-half as long as third’ 
halteres slightly reduced, fuscous. Fig. 5 
flavifrons n. sp. 
Front, face and cheeks for the most part black; face slightly 
carinate, concave in profile; second section of costa a 
little shorter than third; halteres considerably shortened, 
yellow. Fig 2 unica n. sp. 
Leptocera (Pteremis) parvipennis n. sp. (Fig. 3). 
Shining black. Front almost twice as broad as deep; 
divergent stripes opaque; bristles of front and vertex moderately 
strong; interfrontal bristles in five pairs, the upper two and the 
lower pair very much reduced, the other two considerably 
longer but not cruciate; antennae piceous; arista two and one- 
half times antennal length, with short dense pubescence; face 
and cheeks piceous; face carinate between the antennae only; 
epistome curved up on anterior margin; clypeus broadly visible 
from in front; cheeks a litile less than one-third as high as eye, 
when measured at vibrissal angle; vibrissae strong. Mesonotum 
and scutellum with some brownish pollen; dorsocentral bristles 
in two pairs, the anterior pair rather weak: acrostichal setulae 
few, in five irregular rows between the anterior pair of dorso- 
central bristles; scutellum triangular with apex truncate; mar- 
ginal bristles four, the posterior pair much longer than the others; 
pleurae reddish below; upper sternopleurae with a sttong bristle. 
Legs with coxae, trochanters, knees and tarsi reddish; front 
femora with some long hairs, middle tibiae with two small ex- 
tensor bristles on apical third; front and hind tarsal joints 
slightly thickened; hind metatarsi as thick as apex of tibiae 
and two-thirds as long as next joint. Wings very short, not 
reaching beyond the second abdominal segment, brownish; 
veins heavy, piceous; costa ciliate its entire length and ending 
at third vein; second vein not reaching wing-margin and ending 
at a point opposite anterior cross vein; posterior cross vein absent. 
Abdomen very broad; dorsum hairy; segments equal. Halteres 
considerably reduced. Length 1.5 mm. 
