'I'll !: GROUN I) I'.UKTU'S. 1 l'-\ 



Tribe III. IIAKl'AUM. 



Antenna 1 usually slender, arising fiom beneath a slight frontal 

 ridge, two basal joints, sometimes a portion of the third, glabrous. 

 Head often large, usually moderate, not narrowed to a neck; labrum 

 moderately prominent, truncate or emarginate; mandibles stout 

 acute at tip and without brittle-hearing puncture on outer side; 

 mentum broad, emarginate, with or without a median tooth. 

 Thorax variable in form, with a lateral seta, but none in the hind 

 angles. Body sometimes subpeduneulate; scutellum distinct. Ely- 

 tra usually margined at base, sides narrowly inflexed, surface stri- 

 ate. often densely punctured, either pubescent or smooth, with o: 1 

 without dorsal punctures. Prosternum not prolonged; hind cox~e 

 contiguous; front tarsi with the outer apical angle spinous or ob- 

 tusely prolonged. 



The tribe is a large one, being represented in the United States 

 i'annn by 17 genera, 14 of which occur in Indiana. Many of these 

 have been established on trivial or sexual characters, so that they 

 are difficult to distinguish miles'-' both sexes are at hand. To make 

 shorter an otherwise long generic key, the genera are distributed by 

 Ilr.rn among four subtribos. three of which are represented i:> 

 Indiana. 



KKY TO INDIANA SI ISTKII'.KS OK 1 1 A ill'A I.I X J . 



u. Front tarsi of male teebly or no) a) all dilated, pilose or spiii'ise be- 

 neath; eyes, except in Af/niiotlcriix. small and widely separated from 

 the mouth beneath; oblong or oval convex species, usually piceuus or 

 biMwnish-yellosv in hue. Subtribe A., p. 17:t. 



,,/. Front tarsi of male dilated: less convex, black, brown or pice ,us. rarely 



brownish -yellow species. 

 It. Dilated joints o1 iivnt tarsi with two rows of small : cales beneath. 



Subtribe /?.. p. ITS. 



Itlt. Dilated joints of fruit tarsi densely spongy pubescent or brush-like 

 beneath. Subtribe ('.. p. 1 !>.".. 



Sul)tril)0 A. (DAPTI.) 

 To this group belong five Indiana genera, separated as follows: 



KI-:V TO INDIANA OKNK.KA OK <a:O;T A. 



(i. Mandibles prominent, crossing at an an^le. deeply stri^ose at I'M; hixly 

 subpeduneulate: front tibi;e strongly f'ossorial. LXI. OKOIM.XTS. 



an. Mandibles not prominent, at most feebly cr.tssiiiii : Ividy not peduncu- 

 late. 



