236 
The Ohio Naturalist. 
[Vol. II, No. 6, 
front is bounded by a cordate black line, the inner ends of the arcs are united 
by a pair of median longitudinal lines and there is a pair of black spots above 
the antennae. Pronotum pale green, the anterior margin darkened along the 
suture. Elytra pale greenish subhyaline, the nervures slightly lighter. 
Genitalia : female segment twice the length of the penultimate, posterior 
margin truncate, the lateral angles rounding, a triangular, median notch 
nearly to the middle ; pygofers long, fairly stout, as long as the ovipositor. 
Margins of the notch, the ovipositor and short hairs on the pygofers black. 
Male valve as broad as the ultimate segment and about as long, obtusely tri- 
angular ; plates stout, a little over twice as long as the valve, and entirely 
concealing the pygofers, triangularly narrowing to the broad, roundingly 
divergent apices. Entire surface thickly set with short, dark hairs. 
Habitat : Ontario, Iowa and Colo. 
Readily separated from striolus by the larger size, shape of the 
vertex and genitalia. 
SUBGENUS CONOSANUS NOV. 
Head equaling the pronotum in width ; vertex broad, trans- 
versely convex, bluntly angulate before, augulate with the front, 
the margin obtusely rounding or the whole front and vertex united 
to form a bluntly pointed cone. Front somewhat inflated, broad 
above, regularly narrowing to a parallel margined clypeus. Ely- 
tra variable, sometimes shorter than abdomen in female, sometimes 
longer in both sexes, always inclined to be flaring posteriorly, 
giving a parallel margined effect to the whole insect. Venation 
variable, the second cross uervure often present in the species with 
short wings. Those with long elytra have the central anteapieal 
cell produced posteriorly and enlarged at the apex. 
Type of the subgenus obso/etus Kirschb. Common to Europe and 
America. 
Key to the Subgenus. 
A. Species stout, elytra usually shorter than or only slightly exceeding the 
abdomen, almost truncate at the apex, the central and anteapieal cell 
rarely constricted and not extending posteriorly beyond the adjacent 
cells as far as its width at middle. Color pale straw, fuscous or black. 
B. Straw colored ; stout, resembling obsoletus, or fuscous with a broad 
light spot on the cross nervure {varus). 
C. Vertex distinctly angled, twice as long on middle as at eye, 
as long as the pronotum. 
I). Vertex with a straight, light line between the ocelli, 
separating two small triangular spots on apex from 
two broad obscure oites on disc. Lower corners of 
male pygofers extending as long, style-like points, 
much longer than plates. ex/rusus Van D. 
I)D. Vertex with a pair of transverse bands broken for- 
wards in the middle, male pygofers with the lower 
corners acutely produced but not extending beyond 
the plates. alpinus Ball. 
