520 Coleopterological Notices, IV. 



wide, the humeri very small, rectangular, feebly tumid, not prominent later- 

 ally ; sides very feebly convergent and just visibly arcuate from the base nearly 

 to the apex, then rather suddenly and semi-circularly rounded ; disk with 

 somewhat fine but deep grooves, the intervals fiat, nearly three times as wide 

 as the striae, equal, each with a single series of minute but deep distinct 

 rounded and very remote punctures. Abdomen rather sparsely punctured. 

 Prosternum separating the moderately small coxae by fully their own width. 

 Length 3.1-4.2 mm. ; width 1.15-1.5 mm. 



Texas. 



The type described above is a male and has a narrow elongate 

 and distinct, but not very deep, impression near the base of the 

 abdomen. The fifth ventral segment is broadly sinuato-truncate 

 and one-half longer than the fourth. 



GLYPTOBARIS n. gen. 



The single species forming the type of Glyptobaris possesses 

 many of the generic characters of Onychobaris, but differs in sculp- 

 ture and vestiture to a marked degree and inhabits a different geo- 

 graphical region. It resembles Onychobaris in the structure of the 

 beak and antennae and especially in the remote anterior coxae and 

 broad flat prosternum, but differs distinctly in the form and extent 

 of the post-coxal parts of the prosternum, and also, somewhat, in 

 the structure of the mandibles. The latter are acute at apex and 

 come together along a crenulate line, but do not at all overlap in 

 repose ; they are straight in external outline, not at all arcuate, and 

 when closed form an isosceles triangle. 



The broad prosternum has, anteriorly, two small deep foveae, 

 widely distant, arranged transversely, and connected by a very 

 narrow deep and abrupt groove ; from each there extends poste- 

 riorly for a considerable distance a fine deep inwardly arcuate 

 groove, the two being strongly convergent, the triangular space so 

 inclosed being flat and impunctate. Just behind the coxae, before 

 the posterior margin of the broad prosternal process, there are two 

 distant strongly elevated transverse tubercles, of which no trace can 

 be seen in any species of Onychobaris, but which evince an unmis- 

 takable relationship with Madarellus as shown under that genus. 



The pygidium is vertical and partially covered above by the over- 

 hanging tips of the elytra, somewhat as in Desmoglyptus. 



1 Glyptobaris rugicollis Lee— Proc. Am. Phil. Soc, XV, p. 297 

 (Onychobaris). 



Oval in form, strongly convex, rufo-piceous and polished. The 



