178 Trans. Acad. Sci. of St. Louis. 



founded upon a single species which may be briefly described 

 as follows : — 



Body parallel, depressed, rather shinlou, black, the elytra brii^ht red; legs 

 pale, the antennae blackish, gradually testaceous basally; integuments 

 coarsely and not strongly micro-reticulate, the elytra very feebly so, 

 the abdomen finely and obsoletely transversely slrigilato-reticulate ; 

 punctures floe and sparse but distinct, rather larger, more close-set and 

 somewhat feebly impressed on the elytra, flue and somewhat sparse on 

 the abdomen, except the basal region of all the tergites which is im- 

 punctate; pubescence short and inconspicuous but with many longer 

 erect and bristling setae along the sides; head rather longer than 

 wide, the sides behind the eyes evenly and strongly arcuate to the neck, 

 slightly widest behind the eyes; antennae attaining the middle of the 

 elytra, gradually, strongly incrassate distally, the subaplcal joints dis- 

 tinctly transverse, the eleventh obtusely pointed and almost as long as 

 the preceding three combined; prothorax only very slightly wider than 

 the head and about a fourth wider than long, the sides parallel and 

 feebly arcuate; base broadly rounded; surface extremely finely and 

 feebly impressed along the median line from apex uesrly to the base; 

 elytra transverse, rather dU'tiuctly wider than the prolhorax but not 

 quite as long, the suture four-fifths as long as the median line, the 

 humeri scarcely exposed, the basal concavity infumate; abdomen paral- 

 lel and straight at the sides, slightly narrower than the elytra. Length 

 3.5 mm.; width 0.81 mm. Arizona (Santa RitaMtsJ,— H. F. Wickham. 



wickhami n. sp. 



The sixth tergite is truncate at tip in the unique type, with 

 the edge even, and the sex of this specimen is not clearly de- 

 terminable. The infra-lateral carina of the head in this 

 genus is feebler than usual, becoming almost obsolete an- 

 teriorly. 



Rheochara Rey. 



This genus is very isolated, differing greatly from any 

 other with feebly inflexed hypomera, in the dense sculp- 

 ture of the abdomen and in the apically narrowed prothorax. 

 The body in Rheochara is small in size, normally convex, 

 with transverse subconical prothorax, very broad front be- 

 tween the antennae and moderately slender hind tarsi, having 

 the basal joint as long as the next two combined. The 

 punctures of the head and pronotum are evenly distributed, 

 small but strongly annular in form, those of the elytra more 

 impressed, coarser and transversely subasperate, while on 



