BUFFALO SOCIETY OF NATURAL SCIENCES 67 



Described from one male taken at Mandeville, March 30th, 

 and three females from Kingston. This species may be dis- 

 tinguished by its short vertex, the five polished white dots on 

 the anterior edge of the head, the infuscated face and the pale 

 point on the base of the front. 



Deltocephalus flavicosta Stal. 



Common and widely distributed in Jamaica. All the speci- 

 mens brought home were of the pale variety described by Stal 

 from Brazil and lately redescribed by Dr. Uhler from St. Vin- 

 cent as D. retrorsus. The darker northern form described by 

 me in 1892 as D. flavocostatus is probably identical with Stal's 

 species, as pointed out by Prof. Baker some years ago, although 

 the male plates are narrower and the last ventral segment of 

 the female is more produced and not sinuated as in the southern 

 examples. In the United States this form is common through- 

 out the southern states and is distributed west at least to Kansas 

 and Iowa and northwardly to western New York. 



Deltocephalus senilis n. sp. 



Size and general appearance of Sayi to which it seems to be related in 

 the form of the facial pieces, vertex and pronotum. Vertex with the 

 anterior margin and median vitta ivory.white, the former carrying six brown 

 points, one either side of each ocellus and a fainter pair at the tip; the 

 median vitta bisected at base by an incised brown longitudinal line. Prono- 

 tum with five longitudinal pale lines which may be more or less distinct. 

 Scutellum paler at tip. Elytra a little narrower than in Sayz hut of the same 

 length and with similar venation; nervures pale, most of the areoles more or 

 less distinctly edged with brown and a few carrying fuscous spots; most per- 

 sistent of these is a rather large one on the sutural margin of the clavus a 

 little before the middle and a somewhat fainter one on the corium. exterior 

 to and behind this. Face brown, darker above; about eight arcs on either 

 side of the front, an indistinct median vitta, a discal spot on the clypeus 

 either side of the median line, and the disk of the lorse and cheeks below, 

 pale. Body and beneath brown varied with pale, the tergum in some 

 examples almost black. Legs pale more or less distinctly banded and 

 spotted with brown; apex of the last ventral segment of the female feebly 

 bisinuated forming three rounded teeth, the middle a little the larger. Valve 

 of the male very short; plates short, rapidly narrowed to a rather slender 

 point. Pygofers prominent beyond the plates and armed with short bristles. 

 Length ij^ to 2 mm. 



Described from 1 5 examples, representing both sexes, taken 

 about Kingston from March 25th to April 17th; and one from 

 Richmond taken April 15th. In the paler examples the dark 

 marginal dots on the vertex are almost obsolete but the pair 



