Horn.] 



OTIORHYNCHIXI. . 71 



moderately long, scape very nearlj^ as long as the funicle, slightly passing 

 the anterior margin of thorax ; funicle 7-jointecl, first two joints longer, 

 joints 3-7 elongate, obconical gradually shorter ; club elongate oval. Eyes 

 round, moderately prominent. Thorax oval, truncate at apex and base. 

 Scutellum not visible between the elytra. Elytra oval convex. Meta- 

 sternum short, side pieces narrow, indistinct. Intercoxal process broad, 

 truncate ; second segment of abdomen shorter than the two following 

 united, separated from the first by a feebly arcuate suture. Tibiye with 

 very short mucro at tip, and very minutely denticulate internally. Claws 

 connate. Surface densely scaly and with short erect hairs . 



Tliis genus, of which Trachyphkeus melaiiothrix K))y. is the type, has 

 nothing at all resembling it outside of our fauna. It may be said to re- 

 semble Trigonosciita in form with a somewhat narrower thorax. In addi- 

 tion to the minute mucro, the hind tibiie have, in addition, two short fixed 

 spurs. As these are found in all the specimens before me, I cannot sup- 

 pose them to be sexual. The deuticulations of the tibise are minute, and 

 though sufficiently distinct may easily be overlooked. This genus seems 

 by the table of Seidlitz to be allied to EpipJumeus. 



Two species occur in our fauna, of very similar aspect, which differ as 

 follows : 



Second joint of funicle distinctly longer than the first ; 

 erect hairs of elytra very short, feebly erect and 



all black melanothrix. 



Second joint slightly shorter than the first ; elytra hairs 



longer, erect and white and black intermixed. incoraptus. 



G. malanothrix Kby. {TrachypMoim) Fauna Am. Bor. iv, p. 202. 



Form oval, robust, densely covered with brownish scales, with short 

 paler markings very indistinct, and with very short, semi-erect blackish 

 hairs very sparsely placed. Head and rostrum very slightly longer than 

 the thorax, a short impressed line at vertex, rostrum flat, coarsely but 

 sparsely punctured and densely scaly. Antennaj castaneous, sparsely 

 pubescent. Thorax oval, very slightly wider than long, truncate at apex 

 and base, a slight constriction one-fourth behind the apex, sides arcuate, 

 disc moderately convex, coarsely but very evenly perforato-punctate, sur- 

 face densely covered with brownish scales with a narrow paler line at the 

 sides. Elytra oval, sub-globose, about one-fourth longer than wide, base 

 emarginate, humeri oblique, sides sub-parallel for a short distance at middle, 

 apex verj^ obtusely rounded, surface densely covered with brownish scales 

 with indistinct paler spaces at the sides of the declivity, and with striiB of 

 moderate punctures not very closely placed. Body bene:ith castaneous, 

 coarsely punctured and scaly, abdomen more sparsely punctured and with 

 hair-like scales. Legs densely covered with l)rownish scales and sparsely 

 hairy, femora with a broad ring of whitish scales near the tip. Length 

 .22-. 32 inch ; 5.5-8 mm. 



In those specimens with the markings more clearly defined, the narrow 

 pale line of scales at the side of the thorax continues on the elytra, becom 



