June, 1907.] SCHAEFFER : NeW RhYNCHOPHORA. 75 



gather from the descriptions and remarks by Burmeister and Bates 

 leucographa and riifina are the two extremes of one species, though 

 Bates referred the northern specimens with black marks on thorax also 

 to riifina, whether they have the clypeus emarginate or not. 



NEW RHYNCHOPHORA.— II. 



By Chas. Schaeffer, 

 Brooklyn, N. Y. 



Otidocephalus basalis, new species. 



Head black, coarsely punctate, sparsely clothed with white recumbent setje, 

 foveate between the eyes, the latter separated by about half of their own width ; beak 

 short, robust, bistriate on each side, the discal strife reaching to apex, the lateral 

 strife shorter, disk with an elongate, shallow fovea near apex, the latter coarsely, but 

 not densely punctate ; antennae reddish, club piceous, elongate-oval. Thorax black, 

 convex, sides feebly arcuate ; disk densely and coarsely punctate, a smooth, narrow 

 median line distinct ; surface with moderately abundant white and dark setae, the 

 latter less numerous than the white and all directed towards apex. Scutellum 

 densely clothed with white pubescence. Elytra black, basal third red, more than 

 twice as long as wide at base ; humeri oblique ; sides gradually widening towards 

 apical third, thence arcuately narrowing to apex ; disk with regular rows of large, 

 deep and closely placed punctures ; intervals feebly convex, each with an irregular 

 row of smaller punctures ; surface not densely clothed with recumbent, white, coarser 

 setse, sparsely intermixed with a few erect finer, darker setse, the white setae more 

 abundant at apical third, than on the disk. Underside and legs black, clothed with 

 recumbent white setae ; prothorax beneath, mesosternum and metasternum with 

 radiate-pectinate hairs ; femora with a small tooth, front tibiae slightly sinuate within. 

 Length 4.5 mm. 



Huachuca Mts., Arizona. 



In form and vestiture this species resembles closely estriatus Casey, 

 which also occurs in the same region, but the well defined rows of 

 punctures and the red basal space readily separate the two. 



I have one specimen from Senator, Arizona, which differs from 

 typical estriatus in having the intervals of elytra densely punctate and 

 the white hairs more abundant. This gives the specimen the appear- 

 ance of a different species, but there is otherwise no difference and 

 the punctuation is variable in the specimens oi estriatus before me. 



