Coleopterological Notices, IV. 487 



17 Baris Ollloilgllla n. sp. — Dull and strongly alutaceous In lustre, 

 oblong-oval, convex, deep black throughout, the legs slightly piceous. Head 

 sparsely, minutely punctate, the beak more coarsely and closely so, densely 

 rugose at the sides, short, thick, arcuate, but slightly more than one-half as 

 long as the prothorax ; antennae moderately slender, the club rather small, 

 not one-half as long as the funicle, the first joint of the latter shorter than 

 the next three. Prothorax scarcely one-fourth wider than long ; sides broadly, 

 evenly arcuate, becoming nearly parallel toward base, the arcuation only 

 slightly stronger near the apex ; base three and one-half times as wide as the 

 head, the median lobe rather narrow, distinct ; disk somewhat coarsely, deeply 

 and very densely punctate, the punctures one-half as wide as the scutellum 

 and sei:)arated by rather less than one-half their own diameters, with a narrow 

 and distinct inipunctate median line extending from the base nearly to the 

 apex. Scutellum moderate, transverse. Elytra scarcely more than one-fourth 

 longer than wide, three-fourths longer than the prothorax, at the feebly tumid 

 humeri scarcely at all wider than the latter ; sides feebly convergent and just 

 visibly arcuate from the humeri, the apex abruptly, broadly rounded ; disk 

 with rather fine but deep and abrupt strise, which are finely, very feebly punc- 

 tate, the intervals each with a single row of rather large deep moderately dis- 

 tant punctures, somewhat confused on the second, third and fifth. Abdomen 

 strongly, rather closely punctured. Leys somewhat sparsely and feebly punc- 

 tate ; tibipe straight externally, the tarsal claws moderate. Length 3.8 unu. ; 

 width 1.8 mm. 



Colorado. 



The description is drawn from the male, the two basal segments 

 of the abdomen being strongly impressed in the middle. The pro- 

 sternum is feebly impressed and the coxte separated by rather more 

 than one-half of their own width. This species may be distin- 

 guished by the long, evenly rounded, strongly, densely punctate 

 prothorax, which is subequal in width to the elytra, and by the very 

 dull lustre of the entire upper surface. The pronotal punctures are 

 denser, and, especially, smaller than in transversa, which oblongiila 

 somewhat resembles in form and size. 



18 Baris transversa Say. — Cure. 18, Ed. Lee, I, p. 282 (Baridius); 

 interstitialis Say: .Journ. Acad. Nat. Sci., Phila., Ill, p. 314 (Rhynchsenus); 

 Cure. 18, Ed. Lee. I, f). 282 (Baridius) ; quadrata Lee. : Proc. Ac. Nat. Sci., 

 Phila., 1868, p. 361 (Baridius) ; carinidata Lee: Proc. Ac. Nat. Sci., Phila., 

 1858, p. 79 (Baridius); Proc. Am. Phil. Soc, XV, p. 292 (Baris). 



Oblong, rather stout, parallel, convex, black, generally distinctly 

 alutaceous in lustre, never in the least aeneous ; seta3 sparse but 

 quite distinct. Beak very thick, arcuate, punctate, scarcely one- 

 half as long as the prothorax, nearly cylindrical. Prothorax large, 

 rather more than one-third wider than long, the sides very feebly 



