THE SAP-FEEDING BEETLES. 635 



Starke, Marshall, Marion and Clark counties; scarce. April 9- 

 July 30. Occurs in spring- at sap of maple and other trees; in 

 summer on flowers. 



C. maculatus Erichs., and C. anicolor Say, both 4.5 mm. in 

 length and pieeous in hue, are of wide distribution in the Atlantic 

 region. The first named has been taken at Cincinnati. 



V. CoNdTELVs Ericlis. ]K-l:;j. (Gr., "cone + end.") 



The members of this genus have an elongate form, and resemble 

 those of Trogophloeus of the Staphyliwidce. This is due to the ab- 

 domen being much elongated, three joints being exposed above. 

 Beneath, the first two segments are short and equal; the third and 

 fourth are of equal length, each as long as the first two together; 

 fifth elongate, flattened conical, longer than the preceding two 

 together. The males have the terminal dorsal segment truncate 

 and feebly emarginate, with a small additional segment exposed. 

 Three species are Imo^wn from the United States, one of which oc- 

 curs in Indiana. 



1220 (3692). CoNOTELUs obscurus Erichs., Germ. Zeits., IV, 1843, 252. 



Elongate, subdepressed. Black or pieeous, opaque, sparsely pubescent ; 

 legs and antennte brownisb-yellow, the club pieeous. Thorax one-third 

 wider than long, slightly narrowed in front, hind angles obtusely rounded; 

 surface finely rugulose, sparsely punctate. Elytra together nearly square, 

 usually less black than thorax, surface finely granular, with numerous 

 irregular rows of obsolete punctures. Length 3.5-i mm. 



Tippecanoe, Putnam, Marion, Vigo and Posey counties; scarce. 

 June 15-July 15. Occurs on flowers of dogwood (Cornus) and 

 hollyhock. 



Tribe III. NITIDULINI. 



This tribe is the largest of the family and is 'composed of 

 elliptical, usually depressed and often widely margined, species. 

 The elytra cover the entire abdomen or leave only the pygidium 

 exposed. Its members live on sap, on flowers, in fungi, under bark 

 or on dried animal matter. Twelve genera comprise the tribe, nine 

 of which are represented in Indiana. 



KEY TO INDIANA GENEKA OF NITIDULINI. 



ii. Prosternum depressed behind the front coxje, not prolonged. 



1). Tarsi very distinctly dilated on all the feet; tips of elytra usually 

 truncate. 

 c. Apical segment of abdomen usually exposed ; elytra without costre 



