622 



FAMILY XXV. HISTERIDJE. 



fourths to apex in the specimen at hand, and it is my opinion, judg- 

 ing from descriptions only, that convexiusculus and minutus are 

 synonymous, the latter name having priority. 



1101 ( ). Sapeixus ovifobmis sp. nov. 



Oval, convex. Black, shining; legs piceous. Head finely and sparsely 

 punctate. Thorax with a large area near front angles, narrowing to base, 

 rather coarsely and densely punctate, disk almost smooth. Elytra with 

 apical third coarsely and sparsely punctate; oblique humeral distinct, sub- 

 liumera] absent; first dorsal extending three-fourths to apex; second, third 

 and fourth subequal, reaching but little beyond middle; sutural represented 

 by a row of punctures from slightly in front of middle to apical fourth. 

 Propygidium and pygidium coarsely and rather densely punctate. Front 

 tibia? with six or seven sharp teeth. Length 3.2 mm. 



Lawrence County; rare. June 10. Taken at carrion. Allied 

 to waeoensis Horn, but differs by the larger and much more, coarsely 

 punctured area of elytra and less uniformly punctate thorax. 



Group B. 



This group comprises the Indiana species of Groups VTII and 

 IX of Horn. They are robust, rounded or oval species, having the 

 front of head wider than long, distinctly margined and usually 

 marked with one or two short curved grooves. 



KEY TO SPECIES OF GROUP B. 



a. Prosternum compressed, its striae entire or nearly so, convergent in 

 front ; hind tibiae with two rows of fine spines. 

 h. Elytra with distinct sutural stria. 



c. Sutural stria entire; punctured space at apex of elytra of small 

 extent, not entered by the dorsal stria?. 



d. Thorax sparsely punctured in front and at sides, its disk smooth : 



surface bronzed ; length 2.5-3.5 mm. 1192. spblf:eoides. 



dd. Thorax rather sparsely and evenly punctured over its entire sur- 

 face ; black, strongly polished ; length 4.2 mm. 1193. lakexsis. 

 cc. Sutural stria abbreviated at apex, or confused with the punctures. 



e. Elytral punctures apical only, the basal region smooth ; thorax 



with strigose punctures at sides and apex; surface bronzed: 

 length 3 mm. 1194. seminitens. 



ee. Elytral punctures dense, extending to base between the stria\ 

 f. Mirror, or shining smooth space about the scutellum. sharply 

 defined; sutural stria entire, confused at tip; length 3.5- 

 4 mm. 1195. fbateexus. 



ff. Mirror not well defined; sutural stria obsolete at apex; length 

 3-4 mm. 1196. maxctjs. 



IjI). Elytra with sutural stria wanting; scutellar mirror well defined: 

 length 2.8-3.2 mm. 1197. fitchit. 



aa. Prosternum compressed and earinate, its stria? short, united in front: 

 hind tibiae with three rows of long spines: sutural stria entire; ely- 

 tral punctures coarse. 1198. pateuelis. 



