Coleopterological Notices, IV. 44*7 



carinate pronotuni, and from nobilis in its less inflated elytra and 

 the dense white scales covering the basal third of the beak. 



CAWISTES n. gen. 



This genus is founded upon a remarkable species somewhat re- 

 sembling an unusually robust Calandrinus. It is however allied to 

 Acalles, as may be seen from the following diagnosis : — 



Body oblong-oval, strongly convex. Beak moderate in length received in 

 a very deep and abruptly limited sternal sulcus, extending almost to the 

 metasternum. Eyes not very large, almost completely concealed in repose. 

 the ocular lobes moderate. Antennae inserted just behind the middle of the 

 beak, the funicle 7-jointed, slender, the basal joint not quite as long as the 

 second, the latter nearly as long as the next three combined ; outer joints but 

 slightly thicker ; club abrupt, rather large, elongated, cylindric-oval, fully as 

 long as the preceding five joints, very densely pubescent, solid but with a 

 distinct apical segment. Metasternum very short, the episterna distinct, 

 parallel, the epimera not visible. Abdomen with the first suture distinct, 

 broadly, strongly arcuate, the second segment much longer than the next two 

 together. Legs thick and robust ; femora unarmed ; tibiae aberrant, the inter- 

 mediate and posterior gradually and rapidly increasing in width to the middle, 

 then abruptly narrowed, the apical half parallel and not wider than the base, 

 the inner side straight throughout ; tarsi short, slender, the third joint dilated 

 and bilobed ; claws small, simple, very slender, free and divergent. Scutel- 

 lum completely obsolete. 



Canistes differs greatly from Acalles in abdominal structure, but 

 resembles A. nuchalis not only in this feature, but in the broadly 

 visible met-episterna. The new genus which must be formed for 

 A. nuchalis will however differ from Canistes in its distinctly annu- 

 lated antennal club and normal tibiae. In general facies Canistes 

 departs widely from any other type of North American crypto- 

 rhynchs. 



C SCllUSteri n. sp. — Subparallel, black, the antennae rufous with the 

 club still paler and subsericeous ; body sparsely and very unevenly squamose, 

 the head extremely densely clothed with small fulvous recumbent scales, the 

 pronotum with some similar but more elongate scales toward the sides and 

 also bristling with short erect and sparse setae, especially toward apex, the 

 elytra smooth, alutaceous almost glabrous, with a few widely scattered scales 

 of various shapes, some recumbent, others erect, especially visible toward base, 

 in a transverse line at apical third, and thence narrowly along the suture to 

 the apex, the abdomen with a few elongate and widely dispersed scales ; legs 

 densely and conspicuously clothed throughout with small recumbent brown 

 scales, erect and bristling externally along the tibiae. Head densely punc- 



