160 
Psyche 
[June-Aupust 
very dark; halteres black. Front distinctly broader than long; 
ocellar tubercle conspicuous; median groove poorly defined; 
four proclinate post-antennal bristles of nearly equal size; 
lower ones half as far apart as the upper which occupy one- 
fourth of the width of the front; inner bristle of lowest reclinate 
row on a level with the upper post-antennal and midway between 
it and the eye, lateral one considerably higher and close to the 
eye; upper row of four bristles strongly bowed downwards 
medially, the inner bristles separated by one-half the width of 
the front; ocellar row of four large bristles. Antennae of mod- 
erate size, with the arista densely pubescent and one-half longer 
than the width of the front. Palpi greatly enlarged, as long as 
the height of the head and furnished below with very minute 
scattered bristles; in lateral view they are curved upwards and 
narrowed apically, less than one-sixth as thick as long; seen from 
below they curve outward anteriorly and are one-fourth as 
broad near the base as long. Mesonotum quite shining, sparsely 
hairy, the hairs more or less bristly behind; with one pair of 
dorsocentral bristles and several long bristles along the lateral 
margin. Scutellum slightly wider than long, its hind margin 
strongl}^ arcuate and bearing four long, equal bristles, forming a 
pair near each lateral angle. Abdomen opaque, velvety black, 
the segments all of about equal length and without noticeable 
bristles along the sides. Hypopygium more or less globose, 
strongly asymetrical; nearly bare above, but conspicuously 
clothed with rather dense bristles below, on the left side and at 
apex; apical lamella small and with very inconspicuous bristly 
hairs. Propleura with a dense brush of bristles above, a close- 
set row along the posterior margin and several longer ones below 
near the base of the coxa. Mesopleura subshining, without 
bristles above. Legs quite slender, clothed with fine bristly 
hairs, but without cilia or setulse on any of the tibiae; hind tibiae 
each with a single slender apical spur; inwardly near the tip 
with several very oblique rows of fine comb-like bristles; meta- 
tarsus below with five or six similar, nearly transverse rows. 
Anterior tarsi long and very slender. Costa slightly but dis- 
tinctly more than half the wing-length, with short dense cilia; 
