496 Coleopterological Notices, VII. 



elytra ; body pale luteo-testaceous, the legs and antennal club slightly paler ; 

 head and pronotuni finely, feebly and sparsely punetulate, the elytra impunc- 

 tate. Head % wider than long, evenly convex above, the eyes somewhat far 

 down on the sides, convex, somewhat prominent, rather longer than the 

 tempora, which are feebly convergent and only slightly arcuate behind them 

 to the basal angles, the latter narrowly rounded ; antennal prominences small, 

 distinct, separated by % the maximum width. Antennse somewhat shorter 

 than the head and prothorax ; funicle slender, the club strong ; basal joint 

 cylindric, %. longer than wide, as long as the next two ; second oval, about as 

 thick as the first, % longer than wide, longer than the next two and much 

 thicker ; three to six very small, subequal, slightly transverse ; seventh fully as 

 long as the sixth and % wider, transverse, slightly larger than the eighth, 

 which is still more transverse ; ninth %, tenth 1}^, wider than the eighth, % 

 and ^ wider than Jong ; eleventh very short, not as lon^ as wide, triangular, 

 obtusely rounded at tip, much shorter than the two preceding and scarcely as 

 wide as the tenth. Prothorax not quite as long as wide, }^ wider than the 

 head, widest and rounded at the sides at apical third, the sides convergent and 

 feebly arcuate to the base, which is slightly arcuate ; angles obtusely rounded; 

 disk evenly and moderately convex, with a fine but strong, transversely arcuate 

 line near the base, ending in slight fovese separated by more than }^ the width, 

 and with the usual fovea at each side in addition. Elytra oval, 3^ longer 

 than wide, 2% times as long as the prothorax and % wider, with the sides 

 broadly and obtusely angulate just before the middle ; apex obtusely rounded; 

 humeri scarcely at all evident ; disk convex, the suture not at all modified. 

 Legs short, the femora moderately clavate. Length 0.65 mm. ; width 0.24 mm. 



Pennsylvania (Westmoreland Co.). 



The description applies to the male, the copiilator}- spicule 

 being finely acuminate at tip, but there is very little if any sexual 

 difference, and no secondary male characters. This species is 

 closely allied to misellus, but is larger, more ventricose and more 

 convex. 



3. O. atomus n. sp. — Oval, stouter, strongly convex,, feebly ventricose, 

 polished, impunctate and pale rufo- testaceous anteriorly, the elytra feebly, 

 sparsely and very finely punetulate and blackish, but pale toward base and 

 apex ; legs and antennse very pale, ferruginous ; pubescence rather abundant, 

 but very short, pale, stiff and strongly recurved On the elytra, mingled with a 

 few inclined stiff spicules at the extreme sides of the prothorax. Head rather 

 small, transverse, feebly convex above ; eyes quite large and convex, slightly 

 prominent, much longer than the tempora, which are strongly convergent 

 and circularly arcuate behind them to the neck ; antennal prominences very 

 feeble, separated by less than }'^ the total width ; neck scarcely more than 3^ 

 as wide as the head. Antennas fully as long as the head and prothorax, the 

 club distinct but with the ninth joint much smaller than the tenth as in the 

 preceding species ; basal joint cylindric, % longer than wide ; second slightly 

 shorter and narrower, cylindric but gradually narrowed at base, % longer 



