Coleopterological Notices, IV. 4 IT 



male and has a large although moderately deep, oval impression, 

 occupying the basal half of the abdomen. The transverse groove 

 immediately before each posterior coxa is very wide, extremely deep, 

 cavernous and abruptly limited anteriorly the metasternum thence 

 to the middle coxae decidedly tumid. 



Ingens is more closely related to striata than to any other of our 

 species, the differences being expressed in the table. 



2 Baris striata Say. — Cure. 17, Ed. Lee, I, p. 281 (Baridius). 



This is a rather common species of extended distribution, occur- 

 ring throughout the Mississippi and Missouri valleys, but not, to 

 my knowledge, extending to the Atlantic coast regions. The beak 

 is robust, strongly arcuate and quite distinctly shorter than the 

 prothorax, the latter relatively smaller than usual, fully one-third 

 wider than long, with the sides feebly convergent to apical fourth, 

 then strongly rounded and convergent to the apex, behind which 

 there is generally a feeble constriction ; the punctures are very 

 coarse and generally separated by scarcely one-half of their own 

 widths. Scutellum transverse and broadly impressed. Elytra 

 large, a little more than twice as long as the prothorax and abruptly 

 nearly one-fourth wider than that part, the humeral tuberosities 

 small but very distinct ; the striae are very coarse, deep and punc- 

 tate and the intervals are but slightly wider than the grooves, each 

 with a single uneven series of moderately coarse, very deep, close- 

 set punctures, the setae moderate in length, erect and distinct but 

 not as conspicuous as in strenua. 



The prosternum is not impressed in front of the coxae, and the 

 latter are somewhat closer than in any other species which I have 

 observed, being separated by rather less than one-fifth of their 

 width. Length 4.8-5.5 mm. ; width 2.25-2. f mm. 



The series before me is from Arkansas, Wisconsin and Montana. 



3 Baris iimMlicata Lee. — Pro-c. Ac. Nat. Sci., Phila., 1868, p. 363 

 (Baridius) ; Proe. Am. Phil. Soc, XV, p. 291. 



Of this well-marked species I have before me a series of between 

 twenty and thirty specimens, showing great variation in size, and 

 also in certain other more unexpected directions. The body is deep 

 polished black throughout, robust and very strongly convex. The 

 beak is rather long and but feebly arcuate, three-fourths as long as 

 the prothorax in the male, and but very slightly shorter than the 



