358 



REVISION OF THE TENEHRIONID/E OF AMERICA, 



punctured, interstices very convex and sparsely punctured. The males have the anterior 

 tibiae slender at the basal fourth, then suddenly broader and parallel toward the apex. 

 Those of the female are similar to the preceding species. 



Length .19— .25 inch. 



Occurs at San. Diego, Lower California, and Arizona. 



All the preceding species, excepting gagatea, have ferruginous legs. 



CJLTTS, n. g. 



The above generic name is suggested for two species of Blapstinus differing from the 

 typical form in having the anterior tibia 1 more dilated, emarginate at apex, with the outer 

 angle prolonged. The species resemble Trichoton. 



Thorax gradually narrowing from base to apex. 



Thorax as wide at middle as at base. 



obliquus 

 c r a s s u s . 



I', obliquus, Leo., (Blapstinus) New Species, p. 117. 



The thorax gradually narrows from base to apex. The surface is sparsely clothed 

 with short brownish hairs. 



Length .32 inch. 



From Cape San Lucas, Lower California. 

 U. orassus, Lee., (Blapstinus) Ann. Lye. V.,146. 



The sides of the thorax are more strongly rounded and as wide at middle as at base. 

 The vestiture of the surface consists of ochreous scale-like hairs, rather densely placed. 



Length .22-/26 inch. 



From around San Francisco, California. 



TRIBE XXII — OPATRINT. 



Mentum small, supported by a distinct gular peduncle; head deeply inserted, always 

 more or less emarginate in front; eyes variable, coarsely granulated, rarely divided; 

 labrum visible; antenna.' gradually olavate or with the last three joints suddenly broader; 

 intercoxal process of abdomen usually broad, truncate ; anterior tibia? (of our genera) broad, 

 triangular, spurs distinct; tarsi of male not dilated. 



There can bo no point of difference given between this tribe and the preceding that 

 will not be found subject to some exceptions. The simple tarsi of the male is that one 

 however, most to be relied on, taken in connection with other characters which thoueb 

 of small value, show this tribe to be abundantly a distinct type from the preceding. 

 Among these may be classed the broader head, very deeply inserted, almost concealing 

 the eyes from above, and with a more prominent epistoma. The mentum. also, is simple, 

 never sub-trilobed as in many of the genera of Pedinini. The small number of genera in 



