THE CANADIAN ENTOMOLOGIST. 79 



[14] Body depressed and flat, as in its congeners, piceous; above densely 

 punctured j mouth rufous : antennae longer than the prothorax, picco-rufous : 

 front between the eyes transversely wrinkled: prothorax convex, with a longi- 

 tudinal channel; lateral margin dilated, reflexed, and rufous: elytra striated 

 or slightly furrowed, with the furrows and their interstices punctured ; viewed 

 on one side they appear hairy with upright ferruginous hairs; their shoulders 

 and lateral margin are obscurely rufous ; their apex obliquely truncated, and 

 subemarginate; the legs are rufous. 



Var. B. Piceo-rufous ; elytra concolorate. 



[In Melsheimer's Catalogue, p. 4, this species is put down as a synonym of 

 C. cribricollis, Dej., and in Le Conte's List, p. 6, with a mark of interrogation 

 under C. rejlexa, Lee. The latter author, however, subsequently states 

 (Trans. Am. Ent. Soc, Feb. 1869, p. 244), that both C. Monjinata, Kirby, 

 and C. reflexa, Lee, are identical with C. cribricollis, ;Dej. The species 

 occurs in the most northern part of the United States and in Canada.] 



10. Cymindis unicolor, Kirby. — Thickly punctured, ferruginous ; legs 

 paler ; lateral margin of the thorax not dilated. Length of the body 3* lines. 

 One specimen only taken. 



This species greatly resembles variety B of the preceding. It is however 

 smaller and paler ; the prothorax has no longitudinal channel, and its lateral 

 margin is not dilated. 



[Placed, with a mark of interrogation, as a synonym of C ncglecta, Hald., 

 in LeConte's List, p. 6.] 



Genus Sericoda, Kirhy. 



Labrum transverse, sub-quadrangular: with the anterior angles rounded. 

 Mandibles acute, incurved at the apex, not toothed? Labium [nientuni] 

 emarginate with a minute tooth in the sinus. Palpi: maxillary 5-jointed ; 

 first joint very minute, second longer than the rest, sub-cylindrical, attenuat- 

 ed at the base ; third ob-conical ; fourth as long as the third, fusiform, trun- 

 cate ; fifth very minute, retractile within the fourth : Labial 3-jointed; joints 

 nearly equal in length; the two first conical; the last fusiform, truncated. 

 Antennae rather incrassated toward the apex ; scape 1 incrassated; 2nd joint 

 the shortest, and the third rather longer than the others. 



[15J Body depressed, narrow. Head triangular. Eyes large and promi- 

 nent. Neck very little constricted. Prothorax short, chanelled, widest 

 anteriorly : with the angles rounded. Elytra obliquely truncated at the apex 

 and emarginate, so that internally they terminate in an acumen. Cubit 



1 Scape. The first, and often most conspicuous joint of the antenna, terminating 

 below in the bulb, which inosculates in the hea* and acts the part of a rotula. [De-. 

 finitions, &c, p. xvii.] 



