190 Annals Entomological Society of America [Vol. VIII, 
Vertex flat, one-fourth longer than its width between the eyes, 
twice as long on middle as next eye, one-half longer than the pronotum, 
tip blunt; clypeus tapering, truncated at apex, cheeks broad, slightly 
emarginated beneath the eyes, the lateral angles obscure; pronotum 
twice broader than long, elytra narrow, appressed, as long as abdomen, 
with the claval veins usually separate or united only by a cross nervure, 
two cross nervures in the corium, central anteapical cell simple, venation 
as in albidus. 
Color: General color white, markings closely resembling albidus, 
vertex yellow with margin and apex white, apex margined antero-laterally 
by two small, black dots and posteriorly by a larger black dot; ocelli red; 
a narrow marginal line from apex toward ocellus, orange, a pair of slender 
median transverse bars and a pair of convergent curved submedian 
basal spots, continuing the submedian thoracic stripes, pale brownish 
fuscous. Thorax with four broad longitudinal pale fuscous stripes. 
Elytra with nervures white, narrowly margined with dark fuscous. 
Venter dark. Last ventral segment of the female concolorous with 
the remainder of the venter. 
Q Last ventral segment three times as long as the penultimate, 
three-fifths as long as broad, side margins distinctly narrowed from 
before the middle, between their angular posterior limits the posterior 
margin is gently, roundingly emarginate with a large rounded median 
lobe slightly exceeded by the lateral angles, and bearing a small apical 
notch and a pair of longitudinal black dashes. 
& Valve rounded, two and one-half times broader than long; plates 
one and one-half times longer than valve, three-fifths as long as broad, 
lateral margin convex, tips blunt, slightly divergent, pygofers very 
large, somewhat depressed, inflated, one and one-half times broader and 
three times as long as the plates, with a broad, dark fuscous area behind 
the plates, the inner margins pale. 
Described from thirty-three specimens, taken at Galena, 
Kansas, and Clarksville, Tennessee. The former taken during 
October on Aristida oligantha, the latter taken during September 
from Aristida gracilis. Collected by the author. 
Deltocephalus mendosus Ball. (Plate XIX, fig. 21). 
This species was described from the female only (Can. Ent., Vol. 
LXIII, p. 202) as a variety of fraternus. Recently I have collected a 
single male having the peculiar markings of the vertex and the venation 
of fraternus, but differing widely from the male fraternus in the genitalia. 
If, as it seems quite probable, this is the male of fraternus this variety 1s 
certainly worthy of specific rank. The male is described below: 
& Valve large, acutely triangular, somewhat upturned at tip, as 
long as broad; plates broader than valve at base, nearly as long as 
broad, exceeding valve by nearly half its length, the lateral margins 
irregularly convex, tips oblique, rounded; pygofers exceeding the plates 
by nearly their own length, without finger-like appendages found in 
