BUEFALO SOCIETY OF NATURAL SCIENCES 63 



species is no exception. I believe however that brunneus is a 

 good species that may be distinguished by its uniform rich 

 brown color, with the elytral maculation almost obsolete except 

 at apex. 



Xestocephalus ornatus n. sp. 



Male: A little smaller than pulicarius with the vertex more produced. 

 Clear light lemon yellow. Eyes, a small oval spot on the anterior margin of 

 the pronotum, a transverse band on the base of the scutellum continued 

 across the base of the clavus, a common large quadrangular spot on the 

 middle of the elytral commissure, bisinuated exteriorly and including a cen- 

 tral oval spot of the ground color, and three points on the costa opposite to 

 this quadrangular spot, black. Corium less deeply colored and becoming a 

 little smoky toward the apex, and almost white exterior to the black discal 

 mark. Antennae, legs, and lower surface of the body whitish. 



Vertex produced, obtusely rounded at apex, its length three fourths its 

 width at base. Pronotum one fourth longer than the vertex, hind edge 

 rather deeply arcuated, lateral and latero-posterior margins subequal, rec- 

 tilinear, meeting at a right angle. Valve large, roundedly truncate at apex; 

 pygofers one half longer than the valve, subacutely triangular, sides almost 

 rectilinear, surface armed with coarse white bristles. 



Female a little larger. Common commissural black mark reduced to 

 two curved vittse, connected posteriorly, and including the broad oval discal 

 spot which connects anteriorly with the ground color. Last ventral segment 

 longer than the preceding, apical margin broadly, angularly excavated so as 

 to be nearly parallel with the basal. Pygofers strongly narrowed toward 

 their apex and sparcely armed with white bristles. Length 2^ mm. 



Described from two male and two female examples taken 

 at Mandeville. This very pretty little species introduces a new 

 facies in this genus, so far as it is known to me at least. 



Xestocephalus bipunctatus n. sp. 



A little larger than the preceding. Soiled white tinged with yellow on 

 the scutellum and faintly clouded with smoky toward the apex of the elytra. 

 These latter marked with a conspicuous black dot at about the middle of 

 the commissural margin, a minute brown point anterior and exterior to this, 

 about three blackish dots on the costa, and an obscure one on the inner 

 margin just beyond the apex of the clavus which extends along the trans- 

 verse nervure for a little space. Face and lower surface tinged with fer- 

 ruginous; legs whitish with dark tibial spines, the femora lineated with 

 brown. Vertex obtusely conical, its length two thirds its width at base. 

 Pronotum about as in ornatus. Last ventral segment of the female and the 

 pygofers shaped about as in ornatus, but the former more deeply excavated. 

 Pygofers of the male small, obtusely triangular, armed with stout white 

 bristles. The position of this male as mounted is such that I cannot make 

 out satisfactorily the form of the valve and plates. Length 2 X / Z to 3 mm. 



