No. 2370. BEETLES OF THE TRIBE TILLINI—WOLCOTT. 287 



KNAUSI-MOROSA group. 



Elytra sinuate-truncate at tip knausi Wolcott. 



Elytra rounded at tip. 



Legs brownish, piceous or black. 



Body and legs rather sparsely pubescent. 



1'rothorax in part red, elytral fascia yellowish white, abdomen black. 



tricolor Skinner. 



Prothorax brown or piceous, sometimes slightly paler at apex and base. 



Elytra with an indistinct, slightly ante-median fascia; ante-scutellar 



impression rather feeble morosa LeConte. 



Elytra with a more or less distinct median fascia. 



Prothorax shorter, nearly one-half longer than wide. 



Fifth ventral feebly emarginate; sixth ventral oval, without 

 distinct angles laterally, feebly emarginate at apex; last 

 dorsal sub truncate at apex (male); last dorsal broadly 

 triangularly emarginate at apex (female). Abdomen 



subrugosely punctate cognata Wolcott. 



Fifth ventral segment deeply subparabolically emarginate; 

 sixth ventral with prominent lateral angles, the points 

 bent downward; last dorsal notched at middle of apex 

 (male); last dorsal acutely notched at apex (female). 



Abdomen finely, sparsely punctate umbrina Fall. 



Prothorax nearly twice as long as wide. 



Slender, head coarsely punctate aethiopa Wolcott. 



More robust, head more finely punctate. 



santarosae Schaeffer. 



Elytra with an irregularly angulate, narrow, median fascia yellow, 



below this and also near base and around humeri a few more or 



less distinct pale streaks .flavosignata Schaeffer. 



Elytra with a distinct, moderately broad, slightly post-median fascia; 

 thorax rather finely and sparsely punctate at apical fourth, basal 

 three-fourths very finely and sparsely punctate; ante-scutellar 

 impression strong, the surface each side strongly elevated. 



belfragei Horn. 

 Body and legs conspicuously clothed with long, coarse hairs. 



Elongate; elytra nearly twice as wide as prothorax at base, sides nearly 

 parallel; prothorax subcylindrical, as wide at base as at apex. 



longula Wolcott. 



Rather robust; elytra scarcely one-half wider at base than the prothorax, 



sides strongly divergent posteriorly; prothorax slender, base distinctly 



narrower than apex rudis Wolcott. 



Legs pale testaceous. 



Elytra dark with a pale median or post-median fascia sometimes indistinct. 



Elytral fascia postmedian punctata LeConte. 



Elytral fascia median. 



Thorax and elytra coarsely punctate. 



Elytral apices separately rounded; ante-scutellar impression 



wanting .fuchsii Schaeffer. 



Elytral apices conjointly rounded; ante-scutellar impression. 



distinct comans Wolcott. 



Thorax and elytra rather finely punctate. 



Thorax elongate, elytral striae evident only at base; scutellum 

 slightly emarginate at tip oblita Horn. 



