COLEOPTERA. 109 



Cambridge, Massachusetts, 6 ; Nebraska, 5 ; Detroit, Michigan, 1 ; 

 Illinois, 1; Southern States, 4; Grimsby, Ontario, 12. 



This species is perhaps the largest within our territory, and one, 

 of the largest of the group. It is very common and widely diffused, 

 although I have not yet seen it from the Pacific coast. The third 

 and fourth ventral segments in the male are very feebly emarginate 

 in the middle at the apices. 



In many respects annularis resembles the European ciclndcloid.es ; 

 it differs from it in the relative width of the interocular surface, and 

 in the disposition of the red band about the femora, this being much 

 paler in tint, broader, and extending further from the coxae on the 

 latter. The elytral sculpture is almost exactly similar in the two 

 species. 



15. A. perforatlis n. sp. — Form rather slender, sub-cylindrical. 

 Pubescence sparse, semi-erect, irregularly distributed, moderate in length, 

 cinereous, inconspicuous ; entire surface extremely highly polished. Head 

 rather small, robust, much less than twice as wide as long ; interocular 

 surface nearly flat, scarcely one-half wider than the eye ; sulcations rather 

 strong : intermediate surface about equal in width to the lateral portions, 

 evenly and strongly convex, impunctate ; punctures sparse and very irregu- 

 lar in shape, indefinitely coalescent in the sulcations ; ocular lines meeting 

 at more than one length in advance ; antennae longer than the width of head, 

 uniformly pale piceous-brown, except the club which is darker, the latter 

 moderate in size ; third joint very much elongated, three-fourths longer than 

 the fourth, eighth more robust than the seventh, joints of club elongated ; 

 maxillary palpi very long, flavate throughout. Prothorax widest at one-third 

 its length from the apex, where it is much narrower than long ; sides nearly 

 parallel, rather strongly and evenly arcuate from the apical angles to a point 

 slightly behind the middle, thence very feebly convergent posteriorly and 

 rather strongly sinuate, arcuate at the basal angles ; anterior and posterior 

 margins equal in length, equally and moderately arcuate, nearly equal in 

 length to the extreme width of the pronotum ; surface evenly convex, sparsely, 

 very irregularly and strongly punctate, a fusiform space in the middle of the 

 disk impunctate; interspaces convex. Elytra at base distinctly wider than 

 the head; sides rather feebly divergent posteriorly, about equal in length to 

 the width at base, strongly and evenly arcuate; together broadly, roundly, 

 and rather strongly emarginate behind ; suture very slightly longer than the 

 pronotum ; surface very coarsely, deeply, sparsely, and irregularly punctate, 

 a large irregular space near the middle of each elytron impunctate ; punc- 

 tures rounded ; interspaces convex. Abdominal segments decreasing scarcely 

 perceptibly in width, first much narrower than the contiguous elytra, nearly 

 cylindrical, each segment strongly constricted at its base ; border obsolete ; 

 surface very sparsely, finely, and irregularly punctulate ; transverse carinae 

 very rudimentarily tricuspid. Legs slender, rather long, piceo-fuscous, tarsi 



