JAMES CHESTER BRADLEY 
283 
First alKloininal segment short and stout, the second ver}' deep; last dorsal 
segment without a distinct pygidial area, its ai)cx refiexed and slightly emargin- 
ate; surface of the abdomen shining, Init with rather long setae more numerous 
than on the thorax. 
Californi.\: Calexico, August 11 , 1915, 1 cf, (J. C. Bradley), [Cornell 
Universit}^]. 
Type: Cornell University no. 129.1 
Brachycistis (Brachycistellus) marcida new species 
cf . Piceous, i.c. a little darker than \'andyke brown, the antennae, tegulae- 
and the legs except the coxae testaceous, almost honey yellow, ^^'ings hya- 
line, the veins weak, the stigma piceous. Length, 4.7 mm. 
Surface of the head and thorax polished, with scattered large punctures 
bearing long hairs; front prominent between the ocelli; the hind ocelli .17 mm. 
in diameter, .17 mm. from the eyes, .28 mm. from each other, .11 mm. from the 
front ocellus, the diameter of which is .14 mm.; front, antennal sockets and 
clypeus as in the preceding species; mandibles with two equal teeth placed 
side by side before the apex, the surface without carinae. 
The thorax, legs, and wings as in the preceding species, except that the 
marginal cell extends by about the width of the vein Rj beyond the end of the 
stigma. 
The abdomen, except for the first and last segments is like the preceding; 
there is a weakly marked pygidial area, smooth medially, laterally with punc- 
tures and a weak bordering ridge, posteriorly the edge is not reflexed. 
California: Calexico, August 11, 1914, Icf, (J. C. Bradley), [Cornell 
University]. 
Type: Cornell University no. 130.1 
CHYPHOTES Blake 
Type: Chyphotes elevatus Blake, (genus monobasic). 
In the following table to males, two described species are 
omitted, piceiceps Baker and californicus Baker. Thej^ each 
fall in category 5, but Mr. Baker has not mentioned the charac- 
ters by which I further subdivide that section of the genus, and 
as I have not seen either species, I am unable to include them, 
Males 
1. Front wings with veins R4 and R5 both present, therefore with three sub- 
marginal cells (2) 
Front wings with vein R5 lacking, therefore with two submarginal cells. (5) 
2. Fourth and fifth ventral segments armed with a comb of several stiff 
bristles on each side near the apex (3) 
Fourth and fifth ventral segments without such a comb (4) 
3. Second segment of the petiole strongly gibbous, its sides very markedly- 
convex; IL and R, nearly straight, parallel, the cell R4 quadrate. 
nubeculus (Cresson)i 
TRANS. AM. ENT. SOC., XLIII. 
