June, 1907.] SCHAEFFER : New RhYNCHOPHORA. 77 



white setae are abundant on thorax and elytra and distributed nearly 

 evenly over the entire surface of the latter. In well preserved exam- 

 ples radiate-pectinate hairs are present at base and sides of prothorax 

 and around the scutellum. 



By description this species seems to be related to the Mexican 

 hystricosus and sefiger ; from the former the larger femoral tooth sepa- 

 rates it and from the latter the more abundant white setae, which are 

 described in setiger as coarse white hairs. The anterior tibiae are also 

 in arizonicus not strongly sinuate within. 



Otidocephalus texanus, new species. 



Head black, moderately coarsely and not densely punctate ; foveate between the 

 eyes ; the latter separated by half of their own width ; beak slightly shorter than the 

 thorax dorsally, coarsely punctate-striate at sides, slightly curved, punctate at apex ; 

 antennpe reddish, second joint of funicle longer than third, third, fourth, fifth and 

 sixth equal in size, club piceous, nearly as long as the preceding five joints. Thorax 

 slightly convex ; sides feebly arcuate ; disk very sparsely punctate and with a few 

 erect black setse ; scutellum densely clothed with white pubescence. Elytra elongate 

 oval ; humeri obliquely rounded ; sides gradually widening to about apical third ; 

 surface with regular rows of moderate, not deeply impressed punctures ; intervals 

 wide, almost smooth, with a few dark set?e and near apex a few white setre. Under- 

 side and legs black, with sparse white, fine hairs ; sides of metastermum densely 

 clothed with radiate-pectinate hairs ; femora elongate, armed with broad triangular 

 tooth ; front tibiae feebly sinuate within. Length 5 nim. 



Brownsville, Texas. 



The form of thorax and antennal club, the frontal fovea and 

 feeble punctuation of elytra distinguish this species. 



Otidocephalus corae Champ. 



Biol. Cent. Am., vol. IV, pt. 4, p. 262. 



Specimens which agree fairly with the description of this species 

 have been taken from oak in the Huachuca Mts., Arizona. 



This species is closely allied to scrobicoUis, but is generally a 

 little larger, with much more abundant black and white, erect setae on 

 thorax and elytra and the series of large punctures on elytra are dis- 

 tinctly impressed. The black and white setae in this species are even 

 slightly more numerous than in arizonicus, which it resembles very 

 closely in form and size, but con^ has only a small femoral tooth. 



In the following synoptic table, as well as in the descriptions, I 

 have used Mr. Champion's term "radiate-pectinate" for those 

 peculiar white or pale hairs of certain species, which are three or four 



