208 



.! angles, median and transverse lines of the scutellum blackish. Elytra 

 the areoles bordered with fuscous and the transverse veinlets marked 

 with white. Breast and abdomen deep black, the narrow edges of the 

 abdominal segments and pleural pieces pale. Legs pale, anterior and inter- 

 mi .bate femora twice banded with blackish, the posterior blackish without ; 

 tibiae with a row of black points at the base of the spines. Last ventral 

 segment of the male long, hind edge concave; valve small, transverse, roun- 

 ded behind ; plates long, triangular covering the pygofers, more than three 

 times the length of the valve, margins straight, fringed with stout bristles. 

 Ultimate ventral segment of the female >£ longer than the penultimate, 

 narrowed posteriorly, the hind edge feebly excavated with a minute rounded 

 median tooth, the obtuse lateral angles marked with a tawny spot ; pygofers 

 stout, equalling the oviduct, the narrow inner edge and the base of the stout 

 spines pale. 



California. Described from a single pair received from 

 Mi". D. W. Coquillett labelled Cicadula fusa'nervosa, Uhler, M. S. 

 This little species agrees very closely both in color and orna- 

 mentation with D. pulicarius, Fallen. It seems to be snbject to 

 considerable variation in the extent of the black markings espec- 

 ially on the vertex but the form of the genitalia is distinctive. 



6. DELTOCEPHALUS, CONCENTRICUS, n. sp. 



Head much wider than the pronotum, very feebly angled before. Ver- 

 tex rounded to the base of the front, but 1-6 longer on the middle than next 

 the eye, disc quite strongly impressed. Sides of the clypeus rectilinear 

 and nearly parallel. Cheeks wide, outer edge deeply excavated below the 

 eye, Pronotum short. Valve of the male a little longer than the last ven- 

 tral segment, triangular, the apex with a shallow excavation either side of 

 an acute median tooth ; plates broad-triangular, apex obtuse ; pygofers long, 

 armed with a heavy brush of stout spines at the apex. Length, 4 mm. 



Color black, Head fulvous; anterior edge of the vertex with a pale trans- 

 verse band bordered above and below by a heavy black line ; disc with a 

 transverse black spot not attaining the margin of the eyes. Face black ; 

 frontal arcs, sides of the clypeus at base with the apex of the front and the 

 lower half of the lorae, yellow. Cheeks pale with a black cloud below the 

 eyes. Pleural pieces, abdominal segments and the valve at base slenderly 

 edged with yellow. Legs pale yellow ; base of the anterior femora and its 

 inferior edge, three bands on the intermediate and the posterior below, all 

 the tibia' on their inner edge and tips of the tarsal joints, black; spines of 

 the tibia- pale, those of the pygofers black. Pronotum whitish, fulvous on 

 its anterior border, its disc and a few marks before fuscous. Scutellum 

 fuscous, the margins of the apical field and two spots on the basal either 

 side of the middle, fulvous. Elytra whitish tinged with fulvous on the cos ta; 

 nervurcs ooncolorous; all the areoles bordered with fuscous, the apical 

 enfumed. 



Mountains of N. W. Colorado. Described from a single male 

 example received from Prof. C. P. Gillette, 



