Horn.] 4db [S«p. 19, 



Our genera are as follows : 

 Rostrum always longer than the head. 

 Elytra narrowed at base and apex, form oval. Anterior 

 coxse narrowly separated. 

 Eyes distinct, scape resting at a distance from them . . Elassoptes. 

 Elytra parallel, cylindrical, or slightly depressed. 

 Scape of antenna} impinging on the eyes when at rest. 



Anterior coxae distant Cossonus. 



Anterior coxae very narrowly separated Phlceophagus. 



Scape resting at a distance from the eyes. 



Funicle seven jointed Rhyncolus. 



" six " Hexarthrum. 



Rostrum shorter than the head and very stout. 



Lateral lobes of submentum prominent anteriorly. . . . Stenoscelis. 

 Cossonus and Rhyncolus are especially difficult to separate, as the 

 fact of the scape impinging on the eyes when at rest appears to depend 

 in great part to the length of the scape itself, and also on the size of the 

 eyes. Rhyncolus has, however, the rostrum more robust, and in our 

 species not much longer than the head and feebly narrower. 



Elassoptes, n. g. 



Rostrum stout, feebly arcuate. Antennse median, scape rather slender 

 feebly clavate to tip, funicle seven-jointed, first joint short, stouter 

 than the following, joints 2-7 gradually and very feebly broader, mass 

 oval rather abruptly formed, truncate at apex. Eyes small, oval, flat, 

 coarsely granulated, and distant from the scape when the latter is at 

 rest. Thorax slightly wider than long, sides strongly arcuate, apex and 

 base truncate. Scutellum invisible between the elytra. Elytra convex, 

 oblong oval. Legs moderate, anterior and middle coxaa extremely narrowly 

 separated, hind coxse moderately distant, intercoxal process rounded in 

 front. Femora feebly clavate, slightly compressed, tibise moderately 

 compressed with strong falcate process at outer angle, inner angle with 

 short spine. Tarsi slender, nearly as long as the tibiae, first joint nearly 

 equal to the fourth and longer than 2 and 3 together, the latter subequal, 

 the third being slightly shorter, not bilobed, fourth slightly longer than 

 the first, and with small claws. 



This genus is closely allied to Lipommatq, Woll., and differs in the 

 presence of eyes, ' the more slender antennaj and tarsi. Other differences 

 probably exist which might be determined on comparison. The anterior 

 coxae are more prominent than is usual among our Cossonides. 



E. marinus, n. sp. 



Form moderately robust, color ferruginous or brownish, shining. Ros- 

 trum longer than the head, stout, feebly arcuate, slightly elliptical in 

 transverse section, coarsely and densely punctured at tip, median line 

 smoother, head sparsely punctate. Thorax slightly broader than long, 

 anteriorly narrower, sides rather strongly arcuate, basal angles rounded. 

 Elytra oblong oval, convex, posteriorly rapidly declivous, sides clasping 



