344 PROCEEDI?fGSf OP THE NATIONAL MUSEUM vol.37. 



OPHRYASTES BITUBEROSUS Sharp. 



San Diego, Texas, April 24 (Hubbard and Schwarz) ; Goliad, 

 Texas; Beeville, Texas, October 22 (Schwarz); Deming, New Mexico, 

 July 11 (Wickham). 



Genus TOSASTES Sharp. 



This genus can not be defined by the single row of spinules on the 

 posterior tibial corbels, but may be distinguished by the characters 

 given in the table and by the practically non-striate beak. 



The Cimbocera group of the next tribe resembles this genus in the 

 form of the antennae and tarsi, and is mainly separated by the form 

 of the scrobes. 



KEY TO SPECIES OP TOSASTES. 



Elytra with acute humeral angle ' humeralis Sharp. 



[Chihuahua City, Mexico.] 

 Elytra with rounded humeri. 



Corbels of posterior tibiae with a single row of spines; elytra globular; thorax feebly 

 sculptured. 



Elytra with very obsolete sculpture, consisting of vague large pits, arranged 



serially globipennis Sharp. 



[Guajuco, Nuevo Leon, Mexico.] 

 Elytra with striae very fine, consisting of long, fine punctures; median line of 



thorax distinct globularis, new species. 



[Albuquerque, New Mexico.] 

 Corbels of posterior tibiae with'a double row of spines; elytra globular with striae 

 consisting of large ill-defined punctures; thorax distinctly and coarsely punc- 

 tate oralis, new species. 



[Del Rio, and Marathon, Texas.] 



TOSASTES GLOBULARIS, new species. 



Described from a series of twenty-two specimens collected by H. 

 Soltau at Albuquerque, New Mexico, March 12. 



This species resembles T. globipennis Sharp and T. ovalis, but 

 differs in sculpture from both. 



Length 4.5-6.2 mm. Black; elytra very convex, inflated; humeri 

 rounded; clothed with pale gray or violaceous scales below, and 

 above more or less longitudinally vittate, pale scales alternating 

 with vittae of dark-brown and black spots. 



Eyes narrow, acute beneath; rostrum longer than head, not 

 impressed at base, front flat, rostral striae almost obsolete, very fine 

 when present; scrobes dee]), strongly arcuate, rapidly inferior; scape 

 and first six funicular joints clad with broad flat scales, scape dark 

 except at tip, funicular joints light; last funicular without scales, 

 dark like club, and so closely apphed as to appear a part of the club. 

 Thorax strongly transverse; ocular lobes with very short fimbriae; 

 convex on sides with rather deep emargination in front of base and a 

 lighter one before apex; surface smooth, not deeply or strongly 



