94 Psyche [March-June 
ward, in a transverse group on each side behind the humeral 
callosity, far from the middle line; two or three soft setae on 
each side just before the scutellum; a few short setae at apex of 
humeral callosity, followed by one very long bristle; notopleura 
with a few scattered short setae and two long bristles posteriorly; 
on each side one prealar, one postalar and one scutellar bristle; 
metepimeron with a few short, stout setae; scutellum with a 
fringe of long, soft hairs at hind margin and a few preapical 
hairs in a transverse row. Legs stout and rather short; femora 
much swollen, without distinctive features; fourth tarsal seg- 
ment of fore legs not produced, normal; hind tarsal segments 
short and broad. Wing short and broad; microtrichia covering 
the membrane except for nearly the entire axillary cell (2d An) ; 
first basal cell (R) long, narrow, parallel-sided; second basal 
cell (M) long, more than one-third, but much less than one-half 
of the length of first, moderately widened apically and closed 
by a partially sclerotized, slightly curved, nearly vertical an- 
terior basal cross-vein (M 3 ), the upper outer angle being nearly 
square; subcosta (Sc) complete, ending in costa; apical por- 
tion of costa scarcely thicker than basal portion; longitudinal 
veins evenly distributed; costa densely setulose, all other veins 
bare. Abdomen: sclerotized basal tergite extending the entire 
width, bearing few short and soft setae, the sclerite very short 
in the middle, produced into long and narrow side lobes; re- 
mainder of dorsum mostly soft and membranous, with many 
short, soft setae, except for a median almost bare area bearing 
microscopic transverse striolae; one small, median, transversely 
elliptical sclerotized plate a short distance behind the basal 
tergite and on each side a narrow partly sclerotized pleurite; 
preanal tergite forming one large, transverse, sclerotized plate, 
with straight anterior and hind margins and broadly rounded 
sides, sparsely covered with short setae and laterally toward the 
apex with much longer bristles which are not at all spine-like 
(5 or 6 longer bristles on each side); venter mostly soft and 
membranous, fairly uniformly covered with short setae; before 
the genital opening a pair of prominent lobes, sclerotized at the 
broadly rounded tips, which bear many setae. 
Total length, from notch of fronto-clypeus to apex of ab- 
domen (alcoholic specimen): 8 mm.; length of wing: 7.8 mm.; 
width of wing: 2.7 mm. 
Female. — Dorsum of abdomen mostly bare and microscopi- 
