AMERICAN COLEOPTERA. 215 



2. O. elegans, n. sp.— Brigbt reddish yellow, head black; antennae and 

 palpi testaceous. Prothorax narrower behind, rounded on tlie sides. Elytra 

 scarcely longer than the prothorax, witli the sides finely rugose from near the 

 middle to the tip; the pair of punctured strife well impressed, and the inner 

 one somewhat confused; the color is black, with the entire base, and a stripe 

 extending from the base nearly to the tip bright yellow. Abdomen yellow, with 

 the last two dorsal and ventral segments black. Length 8 mm ; .32 inch. 



Louisiana, Mr. A. Sall6. 



4. O. rufipeniiis, Lee. New Spec. Col. (Smithsonian 8vo). 

 This is perhaps only a color variation of the entirely black 0. stygi- 

 cus, Say, but as yet I have seen no intermediate specimens. There is 

 no difference in form or sculpture. 



7. O. bicolor, Fauvel, Abeille, i, 371. 



North Carolina; easily recognized by the black head prothorax and 

 elytra, piceous dorsal segments paler at the sides, and the yellow under 

 surfoce, palpi and legs. The antennae are testaceous. This species 

 resembles 0. vittatus in form and sculpture, but the inner of the ap- 

 proximate elytral striae is more confused, though the specimens do not 

 accurately agree in this respect in either of the species. 



In one specimen the head is larger and the sides of the prothorax 

 less rounded ; in another there is a faint brown elytral vitta. Possibly 

 it is only a color variation of 0. vittatus. 



10. O. lepidns, n. sp. — Elongate, bright rufo- testaceous, head black, occi- 

 put with a small brown spot. Prothorax narrowed behind, rounded on the 

 sides. Elytra a little longer than the prothorax, very little wider; the pair 

 of striee well impressed; suture and lateral triangular spot blackish. Last 

 two dorsal and ventral segments black, except the base of the penultimate 

 which is rufous. Side pieces of metastornum black, base rufous. Length 

 7 mm; .28 inch. 



New York, one specimen given me by Mr. Ulke; resembles in 

 appearance 0. elejans, but easily known by the outer apical part of 

 the elytra being smooth, and by the penultimate ventral and dorsal 

 segment being rufous at base. 



OSORIIJS Latr. 



1. O. politns, n. sp. — Cylindrical, black, head, prothorax and elytra pol- 

 ished, sparsely not coarsely punctured. Abdomen rather densely and rugosely 

 punctured. Epistoma broadly emarginate in the arc of a circle, angles promi- 

 nent acute. Legs blackish-brown. Gula deeply longitudinally impressed. 

 Length 8.5 mm; .33 inch. 



Hilsboro, Florida; one specimen. Messrs. Hubbard and Schwarz. 



2. O. planifrons, n. sp. — Cylindrical, black, shining, antenna and legs 

 reddish-brown. Head sparsely and finely punctured, very finely granulate, 

 antennal tubercles and transverse occipital space smooth and polished; epis- 

 toma flattened, truncate, front angles minufe, scarcely prominent. Prothorax 



