Coleoi')terolorjical Notices, IV. 509 



closely punctured ; tibire straight ; third tarsal joint not wider than long, tlie 

 emargination extending slightly beyond basal third; claws small. Length 

 2.G mm. ; width 1,2 mm. ( J ). 



Texas (near Austin). 



The singular form of the prothorax, evenly rounded from the sides 

 throughout the apex, the fine pronotal punctures, rather depressed 

 form and small size, will readily distinguish this species. The pro- 

 sternum is narrowly, feebly impressed, and separates the coxae by 

 much more than one-half of their own width. The elytral setse are 

 very minute and almost invisible under moderate power. 



PLESIOBARIS n. gen. 



The species of this genus are for the most part small, generally 

 quite minute, and for this reason will possibly prove to be some- 

 what numerous, especially as they are essentially characteristic of 

 our comparatively unexplored extreme southern fauna. One or two 

 species are known to occur in the more northern parts of the United 

 States, but the majority will probablv be found to inhabit subtropi- 

 cal Florida extending perhaps to Cuba. 



The various representatives were regarded by LeConte as forming 

 part of the genus Pseudobaris, but certainly cannot be appropriately 

 placed there, because of their non-sulcate prosternum, moderately 

 separated coxas and small but perfectly free claws. They agree well 

 together in the general nature of the vestiture, this being densely 

 squamiform at the base of the third elytral interval, on the meso- 

 and metasternal side-pieces, and at the sides of the last three ventral 

 segments; elsewhere on the dorsal surface the large scales are sparse, 

 and variously distributed according to the species. 



The few forms here brought to notice already fall into two groups 

 of almost subgeneric value, which however I will simply indicate 

 in the following table: — 



Basal joint of the antenna! club large, composing at least one-half of the 

 mass ; body cylindrical, the elytral humeri not exposed ; elytra each 

 with a large sparsely squamose area behind the middle. 



Black, the base of the prothorax rather strongly bisinuate; legs rufo-pice- 

 ous ; rostrum shorter than the prothorax 1 T-signillU 



Piceousblack ; legs rufous, with the knees black ; base of the prothorax 

 transverse, just visibly and broadly bisinuate ; very small species. 



2 sigiiatipes 



Rufo-testaceous, the elytral suture clouded with black ; base of the protho- 

 rax very broadly and feebly bisinuate; larger species 3 albilatllS 



