386 Coleopferological Notices, V. 



black, flavate at base; head blackish; abdomen dark piceous-brown, the 

 apices of the segments paler. Head, exclusive of the mandibles, one-half 

 wider than long, a little narrower than the prothorax, finely reticulate and alu- 

 taceous, minutely, sparsely punctate, strongly, longitudinally rugose toward 

 the sides, broadly biimpressed, the impression as usual very deep within the 

 antennal tubercles ; eyes moderate, at lesfe than their own length from the 

 basal angles, the tempora feebly divergent behind them ; basal angles broadly 

 rounded ; mandibles moderate, strongly, evenly arcuate, decussate ; frontal 

 porrect process notched at tip ; antennae fully one-half longer tlian the head, 

 nearly as in insignitus and munitus. Prothorax fully three-fourths wider than 

 long, the apical angles nearlj' right, distinct ; sides thence nearly straight, 

 feebly divergent for a short distance, then rather strongly convergent to the 

 broadly rounded basal angles ; edges finely crenulate ; disk strongly trisul- 

 cate, broadly impressed laterally, rather closely, strongly punctate. Elytra 

 very short, strongly transverse, at base as wide as the prothorax, at apex a 

 little wider, the suture not longer than the prothorax ; humeri transverse 

 at base; disk scarcely impressed, strongly distinctly and closely punctate. 

 Abdomen parallel, very slightly narrower than the elytra, minutely feebly and 

 sparsely puuctulate. Length (extended) 3.0-3.5 mm. ; width 0.7-0.9 mm. 



New York (Catskill Mts.). 



The description is taken from three males, which are perfectly 

 similar among themselves, except that the notch in the tip of the 

 frontal process varies in size, in some specimens being- very narrow. 

 The female greatly resembles the female of insignitus, except that 

 the eyes are somewhat less basal, the elytra shorter and the neck a 

 little wider. 



O. COliTergens Lee. — Trans. Am. Ent. Soc , VI, 1877, p. 236. 



Head in the male large, at base rather wider than the prothorax, 

 coarsely, rngosely pnnctate, with a large apical concavity, the eyes 

 convex, at their own length from the basal angles, the tempora 

 strongly divergent behind the eyes, the frontal margin slightly pro- 

 duced in a short broad truncate process; antennfe a little longer 

 than the head, the tenth joint slightly wider than long. Prothorax 

 nearly twice as wide as long, deeply trisulcate, broadly impressed 

 laterally, strongly, rather closely punctate. Elytra a little longer 

 and wider than the prothorax, strongly, moderately closely punctate. 

 Length 3.8 mm.; width 1.1 mm. Georgia and Florida. 



The mentum is as usual composed of three parts, the basal lim- 

 ited by a deep groove, trapezoidal in form, extending from one 

 basal angle to the other and advancing anteriorly more than one- 

 half the entire length, the apical consisting of a narrow transverse 



