THE SAP-FEEDING BEETLE?. 



Tribe II. CARP0PII1L1NI. 



Small oval or elongate subdepressed species having the antenna' 

 ending in an abrupt 3-jointed club and, in repose, received in dis- 

 tinct grooves. Males with a small sixth dorsal segment attached to 

 the abdomen. The species live on flowers or rarely beneath bark. 

 Of the four genera composing the tribe, three are represntecl in 

 Indiana. 



KEY TO INDIANA GENEEA OF CARPOPHILINI. 



a. Form not especially elongate ; last ventral segment not long and conical. 

 Z>. Second and third ventral segments short, first, fourth and fifth longer. 



III. Carpophiias. 



hb. First to fourth ventral segments short, fifth as long as the others 

 united. IV. Colastus. 



aa. Form elongate; last ventral segment long 

 and conical. V. Conotelus. 



III. Carpophilus Stephens. 1830. 

 ( Gt. . ' £ fruit -»• loving. ' ' ) 



The members of this genus have the 

 labrum bilobed; club of antennae flat- 

 tened and oval; tarsi dilated, with sim- 

 ple claws. About 15 species are known 

 from the United States, seven of which 

 have been taken in Indiana, while one or 

 two others doubtless occur. 



KEY TO INDIANA SPECIES OF CARPOPHILUS. 



a. Hind angles of thorax broadly rounded or very obtuse. 



&. Thorax narrowed in front, its front angles rounded ; elytra piceous, 

 with yellow basal and apical spaces. 1210. hemipterus. 



1)1). Thorax quadrate, its front angles distinct. 1211. dimidiatus. 



aa. Hind angles of thorax distinct but sometimes retracted. 



c. Elytra wholly different in color from head and thorax ; surface finely 

 and densely punctured. 1212. melanopterus. 



cc. Elytra, at least in part, of same hue as head and thorax. 

 d. Thorax distinctly narrower at apex than base. 



e. Sides of thorax curved ; surface opaque, piceous or black. 



1213. NIGER. 



ee. Sides straight ; surface feebly shining, dark reddish-brown. 



MARGINATUM. 



dd. Thorax subquadrate, not or very feebly narrower at apex. 



f. Surface densely punctured, opaque. 1214. corticinus. 

 ff. Surface sparsely or inconspicuously punctured, moderately shin- 

 ing. 



g. Elytra uniform piceous or nearly black ; prosternum in front 

 nearly smooth. 1215. brachypterus. 



Fig. 238. Carpophilus paUiperniis Say. 

 X 11. (After Forbes.) 



