THE SAP-FEEDING BEETLES. 631 



Tribe II. CARPOPHIL1NI. 



Small oval or elongate subdepressed species having the antennae 

 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 represnted in 

 Indiana. 



KEY TO INDIANA GENERA OF CARPOPHILINI. 



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

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



III. CARPOPHILVS. 



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



united. IV. COLASTUS. 



tin. Form elongate ; last ventral segment long 



and conical. V. CONOTELUS. 



&&&9 



III. CARPOPHILUS Stephens. 1830. 

 CGr.. "fruit-f loving.") 



The members of this genus have the 

 labrum bilobed; club of antennas 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 



Fig. 238. Carpophuus pullipennis >Say. 

 two Others doubtless OCCUr. < n - (After Forbes.) 



KEY TO INDIANA SPECIES OF CAKPOPHILUS. 



. Hind angles of thorax broadly rounded or very obtuse. 



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



with yellow basal and apical spaces. 1210. HEMIPTERUS. 



lib. 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. 



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



1213. NIGER. 

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



MARGINATUS. 



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



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



ff. Surface sparsely or inconspicuously punctured, moderately shin 



ing. 



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

 nearly smooth. 1215. BRACHYPTERUS. 



