COLEOPTERA OF BAJA CALIFORNIA. 255 



of middle, base and apex equal, disc convex, very coarsely 

 deeply and moderately closely punctate, the median line 

 carinate from base two-thirds to apex. Elytra oval, widest 

 slightly behind the middle, humeri distinct, disc with dis- 

 dinctly impressed stride having coarse, deeply impressed 

 and rather closely placed punctures, intervals flat. Body 

 beneath clothed with much finer pubescence than the up- 

 per surface. Tibige and the femora at base rufescent. 

 Femora with a small tooth. Claws with quadrangular 

 tooth at base. Length, .21 inch; 5.25 mm. 



This species viewed in profile is more convex than any 

 of our hairy species, resembling in this respect Chevj'olati. 

 The vestiture of the upper surface is rather formed of very 

 large narrow scales than simple hairs. They are however 

 not at all tufted as in sparsus or Ulkei. The carinate 

 thorax will at once separate it from any of our species. 



Occurs in Texas. One specimen was given me by 

 Dr. Dohrn as from California, but I believe the locality 

 erroneous. 



In the Annals of the N. Y. Acad. Sc, 1892, Capt. 

 Casey reviews the species of Otidocephalus describing 

 several new ones. O. nivosus from intermediate speci- 

 mens from Utah does not seem specifically separable from 

 vittatus. 



O. cavirostris should be compared with Poeyi, the in- 

 flated and excavated beak on which so much stress is 

 laid is purely a sexual character. (See Lac. Genera, vi, 

 p. 569, note, also Schoenh. Curcul. vii, 2, p. 208. Neither 

 author, however, recognizes that it is a male character.) 



O. -pei'foratus Horn, has been separated as a distinct 

 genus, Oopteritncs, based on the absence of scutellum. 

 The genus is not valid, as a distinct scutellum exists al- 

 though less evident than in the species with distinct hu- 

 meri. 



