BEETLES OF THE GENUS KENOCIS — ^BLACKMAN 387 



wide ; frontal hairs longer and frontal concavity apparently deeper ; 

 last abdominal segment with setae parted in median line. 



This species ranges in size from 1.45 to 1.8 mm. long and differs con- 

 siderably in color pattern owing to differences in the abundance 

 and arrangement of the light scales. In a few specimens the elytral 

 fascia is reduced and nearly absent, while in others it is broad and 

 conspicuous. 



Type locality. — Tucson, Ariz. 



Other localities. — ^Arizona and Benson, Ariz. 



Hosts. — Greasewood [Covillea gentinosa (Engelmann) Eydberg], 

 mesquite {Prosopis sp.). 



Type 7naterial. — Holotype, allotype, and 39 paratypes, U.S.N.M. 

 No. 52951. 



Remarks. — Holotype, allotype, and 30 paratypes are from grease- 

 wood, Tucson, Ariz.; 6 paratypes from cut twigs of mesquite, Ben- 

 son, Ariz., Mr. Chissman, Coll.; 3 paratypes from "twigs of mes- 

 quite, Arizona, collection Wickham." 



RENOCIS HETERODOXUS Casey 



FiQUEES 17, a, g, h; 18, e 



Renocis Jieterodoxus Casey, California Acad. Sci. Bull. 6, pp. 257-259, 1886. — 

 SwAiNE, New York State Mus. Bull. 134, p. 144, 1909.— Beuck, Bull. South- 

 ern California Acad. Sci., vol. 35, pt. 2, pp. 11^120, 1936. 



Type, a male. — Piceous-black, densely clothed with small scales, 

 some dark brown and others cinereous in color, with brown or ashen, 

 erect, spatulate setae; 1.8 mm. long, almost exactly twice as long 

 as wide. 



Frons with epistomal margin bearing a fringe of coarse, cinereous, 

 downwardly directed setae, with a short, sharp tooth in middle; 

 transversely impressed just behind the epistoma and broadly longi- 

 tudinally impressed in median area to a point above the eyes, forming 

 a rather shallow, subtriangular concavity; sides slightly elevated; 

 surface shining, finely, rather sparsely punctured in median con- 

 cavity, more coarsely, densely, and roughly punctate-granulate at the 

 sides and above, often with a large granule or tooth at each side at 

 level of upper angles of eyes; clothed with moderately long, light- 

 brown setae, scanty below, abundant, longer, and shaggy at sides 

 and above, concealing the surface. Eye nearly 3.5 times as long as 

 wide, finely granulate, with inner line sinuate. Antenna (fig. 17, h) 

 brown, funicle 5-jointed, longer than scape; club 2.26 times as long 

 as wide, about as long as funicle and exposed part of scape together, 

 with three nearly straight sutures marked by annuli and rows of setae, 

 not septate. 



Pronotum 1.52 times as wide as long, widest near base, which is 

 nearly straight, feebly procurved; sides strongly arcuate behind, 



