506 Coleopterological Notices, VII. 



rous and densely setulose surface at each side of the metasternum 

 anteriorly as in Cephennium. The general aspect of the body, 

 distant hind coxae and structure of the elytral apices, with the 

 exposed dorsal pygidium, remind us of Eutheia ; but the pro- 

 sternum is short before the^oxae, and the prothorax is of a wholly 

 different form. The antennae remind us of Scydmaenus, except 

 the very slender pellucid connecting pedicels of the outer joints, 

 but the nuchal constriction is anteriorly arcuate, the hind coxae 

 distant, and the prothorax of a different form. All these dispari- 

 ties, taken in connection with the remarkable structure of the 

 palpi, force us to regard the single minute representative as the 

 type of a distinct tribe. Other generic features will be alluded to 

 in the description given below. 



1. A. tener n. sp. — Narrowly suboblong, moderately convex, the elytra 

 very feebly inflated, polished, impunctate anteriorly, the elytra sparsely punc- 

 tulate, rather strongly toward base; body rufo-testaceous, the legs and antennae 

 very pale, flavo-testaceous ; pubescence rather abundant, moderately long, 

 coarse and pale, suberect but recurved on the elytra, less distinct anteriorly 

 and with a few longer erect setae. Head well developed, strongly transverse 

 and triangular, the eyes large, convex, prominent, basal and coarsely faceted, 

 the tempora extremely short and transverse to the neck, which is wide, the 

 dorsal constriction feeble and anteriorly arcuate ; vertex not at all impressed ; 

 anteunal prominences rather marked ; front evenly convex and moderately de- 

 clivous between the antennae to the apex of the clypeus, the latter very 

 small, not at all developed laterally, subtruncate at apex and with broadly 

 rounded angles ; labrum small, transverse ; mandibles well developed, very 

 slender at apex. Antennie a little longer than the head and prothorax, slen- 

 der, gradually and moderately incrassate toward tip ; second joint distinctly 

 shorter but scarcely narrower than the first, scarcely as long as the next two 

 but thicker, cylindric-oval, }{ longer than wide ; third smallest, somewhat 

 distorted and a little darker in color, slightly wider than long, the 

 inner side longer than the outer ; fourth and fifth subequal, almost as 

 thick as the second, slightly elongate ; sixth a little shorter and narrower 

 than the fifth ; sevipnth 34 longer than the sixth, subglobular ; eighth a 

 little larger, subglobular, scarcely as long as wide ; ninth and tenth grad- 

 ually slightly larger, rather wider than long ; eleventh somewhat thicker, 

 not as long as the two preceding, obliquely and obtusely pointed ; last two or 

 three joints mutually connected by extremely slender and translucent stipites. 

 Prothorax almost exactly quadrate, very feebly rounded and narrowed at apex, 

 the sides thence subparallel and nearly straight to the base, fully 3^ wider 

 than the prothorax ; surface very faintly impressed transversely in the middle 

 near the base, also with a small deep and elongate fovea at each side near the 

 side margin, the latter subacute toward base. Scutellum rather large and con- 

 spicuous, equilatero-triangular. Elytra scarcely % longer than wide, obvi- 



