544 Coleopterological Notices, IV. 



Intense black, highly polished, the legs black or rufescent ; body rather 

 more robust, the prothorax more strongly constricted at the apex. 



4 ibis 



Prothorax strongly transverse and rather wider than the elytra, very strongly 



convex toward base, the basal lobe small and feeble ; elytral punctures 



coarse 5 dux 



1 Aulolmi is naso Lee— Proc. Am. Phil. Soc, XV, p. 299. 



Ellipsoidal, strongly convex, polished and piceous-black through- 

 out, the setae very minute on the upper surface, with a few squam- 

 ules at the base of the third interval, each puncture of the under 

 surface bearing an elongate recumbent strigose scale. Head finely 

 but distinctly punctate, the transverse impression feeble and finely 

 subfoveolate in the middle ; beak rather slender, strongly, evenly 

 arcuate and as long as the head and prothorax, the antnneae slender, 

 first funicular joint long, the second more than twice as long as wide, 

 two-thirds as long as the first and equal to the next two, third a 

 little longer than wide, outer joints but slightly wider, club oval, 

 densely pubescent, equal in length to the preceding five joints com- 

 bined, the basal joint constituting much less than one-half the mass. 

 Prothorax conical, strongly convex, one-third wider than long, with 

 the sides broadly and evenly arcuate and only very feebly constricted 

 near the apex, which is transversely truncate and not quite one-half 

 as wide as the base; punctures small but deep and distinctly sepa- 

 rated. Scutellum moderate, transverse. The elytra are slightly 

 longer than wide, two-thirds longer and scarcely perceptibly wider 

 than the prothorax, hemi-elliptical in outline, the humeral tuberosi- 

 ties very feeble, the striae rather coarse and deep, with the intervals 

 about twice as wide as the grooves, and each with a single series 

 of large deep rounded and somewhat close-set punctures. Length 

 2.8-3.3 mm. ; width 1.3-1.6 mm. 



The four specimens in my cabinet are from Kansas and Iowa, and 

 the reference of certain Californian specimens to this species by Dr. 

 LeConte is apparently incorrect, these being identical with pusilla. 



The reference to nasutus (1. c. ante) is somewhat confusing. Le- 

 Conte refers to Say's Cure, Ed. Lee, I, p 295, but this reference 

 was probably intended to be Proc. Ac. Nat. Sci., Phila., 1868, p. 

 364, where the author has described this species under that name, 

 forgetting that he had already described a Centrinus nasutus. As 

 Centrinus and Aulobaris are widely different genera, there was no 

 necessity for the change of name, but since they are both proposed 



