376 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 45. 



Table of species of Tosastes. 



1. Elytra with acute humeral angle humeralts Sharp. 



[Chihuahua City, Mexico.] 



2. Elytra with rounded humeri. 



a'. Corbels of posterior tibiaj tipped with a single row of spines. 



6'. Beak sulcate and laterally impressed coardatus Champion (1911). 



[Monclova, Mexico.] 

 fe2. Beak smooth; elytra globular; thorax feebly sculptured. 

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



serially globipennis Sharp. 



[Guajuco, Nuevo Leon, Mexico.] 

 c^. Elytra with striae very fine, consisting of long, fine punctures; median 



line of thorax distinct globularis Pierce. 



[Albuquerque, New Mexico.] 

 a^. Corbels of posterior tibiae tipped with a double row of spines. 



d'. Thorax very short, more than twice wider than long, distinctly and coarsely 

 but rather sparsely punctate; elytra globular with strise consisting of 



large ill-defined punctures ovalis Pierce. 



[Del Rio and Marathon, Texas.] 

 (P. Thorax longer, less than twice as wide as long, indistinctly, fhiely and rather 

 closely punctate; elytra longer, with stria? indistinctly depressed and 



punctate cinerascens, new species. 



[Wenatchee, Washington.] 



TOSASTES CINERASCENS, new species. 



Described from two female and tliree male specimens collected at 

 Wenatchee, Wasliington, April 17, 1911, and sent the writer from 

 the Wasliington Experiment Station (Wash. Exp. Sta. No. 4) by 

 JMr. M. A, Yothers. A sixth specimen (female) is retained in the 

 writer's collection, and it is understood that still more material is in 

 the Washington Station collection. 



The female of this species is the largest of our Tosastes and is very 

 similar in form to Champion's new coardatus of which the cotypic 

 series is before the writer. The smooth beak and double row of 

 spines at the tip of the posterior tibias readily separates it. 



Female, length 6-8 mm., width 3-4 mm. ; male, length 5 mm., width 

 2.5 mm. Elytra very convex, inflated, humeri rounded; densely 

 clothed with mottled grayish and darker scales, and with rows of 

 setse on elytral interspaces. Rostrum short, broad, lightly trans- 

 versely impressed at base, with very faint impressions at sides, but 

 with no median groove; scrobes deep, strongly arcuate, rapidly 

 inferior; scape and first six funicular joints clad with white scales, 

 seventh dark like club and without scales. Thorax transverse, 

 about one-third wider than long; ocular lobes distinctly fimbriate; 

 convex on sides without lateral emarginations ; very shallowly and 

 indistinctly but closely punctate; median impression apparent. 

 Striae impressed, as broad as interspaces; punctures indistinct 

 because of close scaly vestiture. Elytra in small males almost twice 



