Coleopterological Notices, IV. 579 



Prothorax but slightly wider than long, tubulate at apex, the punc- 

 tures small, deep, close, tending to coalesce longitudinally, the median 

 polished line distinct. Elytral intervals wide and flat. Prosternum 

 with an elongate-oval, excessively deep excavation, with its edges 

 rounded, the coxa? sepai'ated by but slightl}' more than one-fourth 

 of their own width, the large corneous process before each arising 

 vertically for a short distance, then flexed abruptly and obliquely for- 

 ward, becoming finely acuminate. Length 5.8 mm. ; width 2.8 ram. 

 Missouri. Cab. LeConte. Represented by the unique type. The 

 narrowly vittate elytra will readily serve to identify this distinct 

 species. 



3 Centriiitis striatirostris Lee. — Proc. Am. Phil. Soc, XV, p. 309. 



Robust, oval, convex, piceous and shining, the vestiture sparse, 

 whitish, consisting of very elongate narrow scales and finer hair- 

 like squamules indiscriminately mingled on the elytra, the finer 

 squamulcs not noticeably darker in color; on the under surface they 

 are broader and denser, and on the pronotum are also coarser toward 

 apex and at base near the sides and in the middle, also in a large 

 conspicuous spot at each side of the scutellum. The beak is rather 

 stout and feebly arcuate, but slightly longer than the head and pro- 

 thorax, deeply punctate and longitudinally rugose at the sides, the 

 antennse inserted just beyond the middle, the second funicular joint 

 less than one-half as long as the first and about one-half longer than 

 the third, the club rather large, oval, fully as long as the preceding 

 five joints together, densely pubescent, the basal joint two-fifths of 

 the whole. Prothorax strongly tubulate at apex, the disk with 

 coarse rugose sculpture and a narrow impunctate line. Elytra a 

 little wider than the prothorax and about twice as long, the strife 

 rather coarse, deep, the intervals flat, two to three times as wide as 

 the grooves, coarsely and sparsely punetato-rugulose. Prosternum 

 in the male with a large elongate-oval extremely deep excavation, 

 extending to the coxa?, the latter separated by two-fifths of their 

 own width in both sexes ; in the female the prosternum is flat, with 

 a small abrupt oval and extremely deep excavation near the anterior 

 margin. Length 4.4-4.5 mm. ; width 2.25-2.4 mm. 



Texas. The ante-coxal corneous process of the male is erect, 

 short, stout, acuminate and about as long as the antennal club in 

 the specimen which I have under observation. 



