144 GEO. H. nORN, M. D. 



Anterior tarsi of male with three joints spongy pubescent beneath. Length 

 .54 £—.66 ? inch; 14— 17 mm. 



This very distinct species belongs with C. cristatus and C. angulatus 

 being almost exactly intermediate in the sculpture of the head. A deep 

 groove on each side of the head limits within the supra-orbital ridge 

 and its extension forward over the insertion of the antennae, where it 

 forms a tubercle and then diminishing in size, extends to the margin 

 of the front. Between the base of the antennae a deep transverse 

 groove unites the lateral grooves and forms thus a triangular smooth 

 elevation, the base of which is the margin of the front. The front is 

 not carinate as in cristatus and avgidatus, but moderately convex and 

 roughened in the manner of an irregular cicatrix. In C. cristatus the 

 occiput immediately behind the eyes is constricted, in the one now be- 

 fore me, and angulatus, the head is not constricted. The thorax is 

 nearly that of C. punctatus, but with the disc less convex along the 

 median line and the transverse basal impression less deep. The elytra 

 are of regularly oval form as in the two species above cited, and the 

 surface sculptured . nearly as in C. intcrruptus. The antennae have 

 the basal joint moderately stout, and are about equal to half the length 

 of the entire body. 



Both sexes are before me through the kindness of Mr. G. R. Crotch, 

 and are from the collections of Lord Walsingham, made during a 

 recent visit to Oregon. 



LOINOCHARIS, n. g. (Hydrophilidai.) 

 Allied to Limnebius, differing as follows : — Abdomen composed of 

 eight segments, first five equal in length, sub-connate, sixth slightly 

 shorter, seventh and eighth narrower than the sixth, and the eighth 

 rounded at tip and not ciliate. Hind legs not ciliate, outer edge 

 finely spinulose. Antennae eight-jointed, similar to Limnebius, last 

 three joints forming an oval mass. Elytra sub-acute at apex, and at 

 tip of suture slightly dehiscent. Surface sparsely pubescent. 



Ii. piceus, n. sp. — Oval, more attenuate behind, subdepressed, piceous, 

 shining, very sparsely pubescent. Head sparsely punctulate. Antennae and 

 palpi testaceous. Thorax transverse, twice as wide at apex as 

 long, at base two and a half times; apex slightly emarginate, base 

 broadly rounded, sides slightly arcuate and gradually narrowing 

 to apex; surface sparsely and finely punctulate. Scutellum small, 

 triangular, broader than long. Elytra oval, gradually narrowed 

 to apex, apex sub-acuminate and slightly dehiscent; surface 

 less shining than thorax, finely alutaceous. Body beneath black, 

 sub-opaque, densely punctulate, sparsely pubescent. Legs testa- 

 Length .06 inch; 1.5 mm. 



