BEETLES OF THE GENUS RENOCIS — BLACKMAN 377 



formly cinereous scales, with no evidence of fasciae ; stouter, 



about 1.8 to 1.85 times as long as wide pruinosus, new species (p. 383) 



5. Declivity subsulcate, with first and second interspaces broad 



and nearly flat; pronotum with 2 groups of asperities at 



each side 



Declivity with first striae more strongly impressed, suture ele- 

 vated, second interspaces convex; pronotum with 2 or 3 

 groups of asperities at each side » 



6. Smaller and stouter, about 1.75 times as long as wide ; base of 



pronotum broadly, moderately deeply emarginate, with emar- 

 ginatiou bisinuate; front margin not bisinuate; elytra with 

 median portion of serrate anterior margin displaced poste- 

 riorly ; cinereous scales forming fascia across middle of elytra. 



fasciatus, new species (p. 385) 

 Larger and not so stout, more than 1.8 times as long as wide ; 

 base of pronotum broadly procurved, with median portion 

 not bisinuate; front margin bisinuate; elytra with serrate 

 anterior margin bisinuate, forming a continuous line; with 

 no fascia of light scales across middle of elytra 7 



7. Piceous-brown to black ; with dark-brown and cinereous scales ; 



f rons often with coarse granule or tooth at each side ; ante- 

 rior tibia with 8 teeth on outer margin (fig. 18, e). 



heterodoxus Casey (p. 387) 



Reddish brown; with cinnamon-brown and cinereous scales; 

 frons granulate-punctate at sides, without special granule or 

 tooth; anterior tibia with 10 teeth on outer margin (fig. 18, f). 



brunneus, new species (p. 389) 



8. Pronotum with 2 groups of asperities at each side, base nearly 



straight ; elytra stouter, 1.25 times as long as wide, striae dis- 

 tinctly, equally impressed, with first not notably stronger; 

 scales not concealing the surface, with few light ones; fore- 

 tibia with 8 teeth on outer margin (fig. 18, g). 



fuscus, new species (p. 391) 



Pronotum with 3 groups of asperities at each side, base pro- 

 curved; elytra 1.4-1.5 times as long as wide, striae, except 

 first, rather feebly impressed; scales concealing most of sur- 

 face, many of them cinereous ^ 



9. Frons with a subtriangular concavity, the sides granulate- 



punctate; pronotum with anterior margin feebly sinuate at 

 middle ; elytra 1.4 times as long as wide ; foretibia with 9-11 



teeth on outer margin (fig. 18, h, i) commixtus, new species (p. 392) 



Frons feebly concave, with a coarse granule at each side ; pro- 

 notum with anterior margin broadly emarginate at middle; 

 elytra about 1.5 times as long as wide 10 



10. Elytra with striae distinctly, rather strongly impressed, strial 



punctures rather coarse, deep, and distinct — brittaini (Swaine) (p. 394) 

 Elytra with striae very feebly impressed, punctures small and 

 closely placed criddlei (Swaine) (p. 395) 



11. Pronotum at base with sinuate emargination, with a pencil of 



long fine setae at each side just behind anterior margin, 

 longer and more conspicuous in male; elytra with median 

 portion of serrate anterior margins displaced posteriorly; 



