Coleopterological Notices, IV. 459 



somewhat appcncliculate and not simple, in its still more equal ven- 

 tral segments and relativel}^ larger eyes. The femora are broadly 

 sinuate beneath toward apex, but not in the least dentate. 



P. politus n. sp. — Oval, strongly convex, highly polished, black, the 

 tip of beak, antennae, tibise and tarsi very pale luteo-Mavate ; femora black ; 

 body almost glabrous, the upper surface with a few remote inconspicuous 

 setiform squaraules, especially evident and somewhat bristling between the 

 eyes, on the prosternum and flanks of the prothorax. Head finely punctate ; 

 beak a little more than one-third as long as the body, smooth, shining, rather 

 coarsely but not densely, sublinearly punctate, the antennae inserted ratlier 

 behind basal third. Prothorax small, conical, three-fifths wider than long, 

 the sides almost straight, subapical constriction very feeble ; apex broadly 

 arcuate, about two-thirds as wide as the base ; disk finely but strongly, not 

 closely punctate. Scutellum small, tumid, albido-setose. Elijtra at base 

 abruptly two-fifths wider than the prothorax, between three and four times 

 as long ; sides rounded, convergent and feebly sinuate toward apex, becoming 

 parallel near the base ; humeri rather tumid, obtuse ; disk with very fine but 

 distinct striae, feebly, remotely crenato-punctate ; intervals wide, broadly con- 

 vex, each with a single series of extremely minute distant and feebly setiferous 

 punctures. Abdomen rather closely, subrugosely punctate. Length 1.5-1.8 

 mm. ; width 0.7-0.9 mm. 



Indiana. 



This is an interesting addition to the Zygopini of the United 

 States and constitutes a widely isolated generic type. Two speci- 

 mens. 



ZYGOPS Schijnh. 



I have before me two species of this genus which may be thus 

 characterized : — 



Lateral vittae and median pale spots of the pronotum abruptly defined ; post- 

 medial whitish spots of the elytra arranged transversely ; upper portion 

 of the pygidium black, except narrowly near the edges and along the 

 subcarinate median line ; abdomen with a denuded spot near each side 

 of the fifth segment seiuilliveus Lee. 



Lateral pronotal vittae rather well defined, the median spots not at all defined, 

 replaced by large indefinitely nubilate areas; post-medial spots of the 

 elytra oblique ; pygidium with mixed pale and dark scales ; fifth ventral 

 segment almost uniformly clothed throughout with white scales. Body 

 otherwise nearly resembling seminiceus, the beak more coarsely and. 

 rugosely punctate and much less strongly carinate in the middle toward 

 base. Length 7.7-9.0 mm. ; width 3.9-4.8 mm. Texas (southwestern). 



Mr. G. W. Dunn SUffuSllS n. sp. 



Annals N. Y. Acad. Sci., VI, Sept. 1892.— 31 



