LcConte.] 



BARIXI. 289 



Brown, sides of prothorax broadly rounded ........ 1. scolopax. 



Black, " " strongly " ....... . 2. 



2. Prothorax coarsely, less densely punctured ......... 4. anthracina. 



less coarsely and more densely punctured 3-. 



3. Elytra! interspaces transversely rugose and punctu- 



lite ........................................... 2. ibis; 



Elyiral interspaces with single rows of punctures. . . 3. naso. 



1. A. scolopax (Say), Cure. 26; ed. Lee. i, 295, (Baridim); Boh., 

 Cure, iii, 699. 



Illinois and Georgia, four specimens; in three of them distinct traces of 

 a smooth dorsal line are seen on the prothorax, but in one the surface is 

 quite uniformly punctured. The elytra become gradually wider behind 

 the base for a short distance, so that the humeri are distinct, though very 

 obtuse. 



2. A. ibis Lee. loc. cit. 365. 



Georgia, four specimens. More convex than the preceding and very 

 similar in form to Pseudobaris farctus. The humeri are rounded, slightly 

 prominent. 



3. A.jQaso_ Baridius nasutus^Lec. loc. cit. 295. 



One specimen, Kansas, and two from California or Arizona. The elytra 

 are not wider than the prothorax, the striae are deeper, tl e interspaces 

 narrower, and each is marked with a line of deep punctures; at the base-off 

 the third and fifth interspaces are a few whitish hairs. 



I regret to have been the cause of confusion by having previously des- 

 cribed another Baridiu* nasulus from Tejon, Cal., (Pr. Ac. Nat. Sc. Phil. 

 1859, 79). On reexamining that species I found that as the pygidium was 

 covered by the elytra it did not belong to Bar is; though I inadvertently 

 forgot the name I had given to the species at the time I prepared the syn-. 

 opsis of Baridius, in consequence of having transferred it to another box 

 with the other species of Centrums. 



4. A. anthracina (Boh.), Sch. Cure, iii, 727 (Baridius). 



Oblong oval, shining, black, head less shining, finely punctured, beak as 

 long as the prothorax, rather slender, moderately curved, finely punctured 

 above, coarsely punclurcd at the sides; club of antennae rounded oval, shi 

 ning only at the base. Prothorax coarsely and deeply punctured, more 

 densely at the sides, which are nearly parallel for two-thirds the length, 

 then suddenly rounded and narrowed to the apex, which is constricted At 

 the sides; dorsal line wanting. Elytra with deep stria?, interspaces moder- 

 ately wide, flat, each with a row of shallow punctures, extending across 

 the interspaces, as distinct ruga?. Prosternum deeply sulcate, with the 

 groove sharply defined and nearly smooth. Length 3.8 mm.; .15 inch. 



One specimen from Florida; Messrs. Hubbard and Schwarz. This spe- 

 cies has the rather flat upper surface of true Baris, and is quite, different in 

 form from the other three above mentioned. 



PROC. AMER. PHILOS. 80C. XV. 96. 2K 



