298 CURCULI0:N'ID^. [LeConte. 



pearance of Centrinua. The prosternum is broadly and tolerably deeply 

 silicate, thus showing a tendency towards Aulobaris, which it resembles in 

 appearance, though the limits of the groove are ill-detined. The second 

 joint of the funicle is however no longer than the third. The base of the 

 third interspace of the elytra has a small scalj^ spot, and there are also scat- 

 ^_ _ tered hair-like scales. The striae are deep, the puncUires of the interspaces 



"^ ,. are transverse and rather confused. Length 4-5 mm.; .16-. 20 inch. 



2. P. nig-rina (Say), Cure. 31; ed. Lee. 1, 295, {Baridms); Boh., Sch. 

 Cure, iii, 690; Boh., ibid, viii, 154; Lee, Pr. Ac. Nat. Sc. Phil. 1868, 363. 

 Souihern States. The white scales are very sparse, and easily removed; 

 they are arranged singly upon the interspaces, except at the base of the 

 third interspace, where they form a small spot. The prosternum is broadly 

 and deeply sulcate; the groove is sparsyly punctured, and sharply limited. 

 ■^-■7. Length 3-4 mm. ; .12-16 inch. 



-y.'rmuj/ittct ^- ^- ftHg«s*a (Lee), Pr. Ac. Nat. Sc. Phil. 1868, 363, iBaridius). 

 ■ Lipfi.J^i.fy'Zo This species, from the material now at my command seems separable 

 ' from P. nigrina only by its narrower form, the sides of the prothorax nearly 



parallel behind, and by the entire absence of smooth dorsal line of the pro- 

 thorax. Specimens from Texas which are clearly referable to P. nigrina, 

 vary in the last mentioned character, the dorsal line being either distinct or 

 obsolete, so that only the form of body remains to distinguish them apart. 

 Length 2.7-3.3 mm. ; .11-. 13 inch. Illinois to Kansas. 



In one specimen a few scales remain, indicating a vestiture similar to the 

 precsding. On re-examining the specimens I tind my former observation 

 that the second joint of the funicle is longer than the third is incorrect. 



4. P. pusilla (Lee), Pr. Ac. Nat. Sc. Phil. 1868, 363, {Baridim). 

 New York, one specimen. Allied to P. nigrina, but more oA^al and less 



elongate, with the punctures of the i)rothorax less coarse, and without 

 smooh dorsal line; the sides are also more oblique. Head and beak sparsely 

 fineh' punctured; the latter as long as the prothorax, rather slender, very 

 slightly curved. Elytra with deep striae, and rather wide flat interspaces, 

 each with a row of fine but distinct punctures; the specimen is rubbed, but 

 a few white scales are visible at the base of the third interspace, which in- 

 duce me to believe that in well preserved specimens they are scattered as in 

 the preceding species. The prosternum is broadly and strongly sulcate, 

 and sparselj' punctured, but the edges of the groove are less sharply defined 

 than in P. nigrina. Length 2.5 mm.; .10 inch. 



5. P. albilatus, n. sp. 



Elongate, brown, shining; with a small elongate spot at the base of the 

 third interspace, and the side pieces of meso- and metatliorax densely 

 clothed with white scales. Beak punctured, feebly striate near the base; 

 head finelj' punctured. Prothorax a little longer than wide, rounded on 

 the sides in front, not constricted at tip; disc coarsely, rather densely punc- 

 tured, with a narrow smooth dorsal line. Elytra not wider than the pro- 



