306 E. p. VAN DUZEE. 



Vertex a little sloping, nearly flat, about one-third longer on the middle than 

 next the eye, anterior edge rounded as in Melsheimeri ; front broad, sides nearly 

 rectilinear almost to the apex, where they are suddenly incurved ; clypeus long 

 and narrow, basal suture straight, the sides straight and parallel, apex rounded ; 

 lorae nearly semicircular, small; cheeks broad, forming an unusually wide mar- 

 gin beyond the lorse and attaining the apex of the clypeus. 



Genital characters : %, . — Valve broad and short, about the length of the last 

 ventral segment ; plates about twice the length of the valve, together nearly 

 semicircular in form; pygofers moderately exceeding the plates, narrow and 

 obtuse at apex. Female: Apical margin of last ventral segment with an in- 

 versely triangular median notch reaching to near the center and including on 

 its base a blunt tooth, hind edge either side of this notch quite deeply excavated 

 with the outer angles prominent and rounded; pygofers broad, with numerous 

 stout apical spines. Color ashy gray, sometimes tinged with fulvous. Vertex 

 with four quadrate black spots on the disc and two smaller ones at tip, sometimes 

 with a few blackish lineatious near the ocelli, median impressed line brown ; 

 front black, with numerous dots and broken arcs, broadest next the base and 

 sides, an apical transverse band, and generally a large cordate spot on the disc a 

 little anterior to the middle, whitish ; cheeks whitish, with a dusky cloud at the 

 base of the antennae and sometimes another below the eyes ; clypeus with a 

 black apical patch, which may be produced along the middle nearly to the base ; 

 lorse marked with black at its upper and lower angles, sutures black. Pronotum 

 mottled with brown and marked by about five pale longitudinal lines ; scutellum 

 with a spot within each basal angle, two dots between these and the arcuated 

 impressed line, black. Elytra whitish, with about three broad fulvous clouds, 

 in which the areoles are margined with fuscous; nervures white, obscured on the 

 fulvous areas. Beneath black, sometimes with the apical ventral segment ful- 

 vous and with the pectoral pieces edged with pale. 



Colorado. Described from one male and two female examples 

 received from Mr. C. P. Gillette, and captured by him among the 

 mountains in the northwestern part of the State. This is a very 

 pretty little species. 



9. Deltoceplialiis Weedi n. sp. — Aspect of the preceding, but with a 

 longer and sharper vertex and clearer markings; light testaceous-brown marked 

 with fuscous and white. Length 3 mm. 



Vertex one-half longer on the middle than next the eye, flat and strongly 

 angled before; disc marked with a transverse brown band springing from a pi- 

 ceous spot against the anterior aifgle of the eyes and extended posteriorly either 

 side of the black impressed median line, anteriorly it is bisected by a branch 

 extending backward from the middle of a transverse arcuated white line which 

 reaches the anterior edge a little before the ocelli ; on the apex are two angular 

 piceous spots and above and interior to each ocellus is an oval one; basal areas either 

 side of the median line edged with whitish ; front convex, sides nearly rectilinear 

 from the antennfe to the base of the clypeus, the latter convex and narrowed 

 apically; face black, about three basal arcs and a few points on the front, a spot 

 at the interior angle of the lorse, a similar one above this on the cheek, and a 

 large irregular area on the outer angles fulvous; sometimes these markings are 

 much extended covering most of the cheeks, lorge and sides of the clypeus. 



