738 FAMILY XXX rii. — ELAri:i;ii).K. 



KEY TO INDIANA GENERA OF COKYMDITINI. 



(/. Fi'oiit or clypeus oonvex, its edge higher than the lal)rniii ; nioutli in 

 Cerior and applied to tlie prosternvini in repose. 

 h. Front truncate, not margined behind the hibruni, though higher tlian 

 it; tarsal claws simple; size 7 or more mm. 

 r. Side mai'gins of thorax bent downward in front. 



XXX. Agriotes. 

 cc. Side margins of thorax straiglit. XXXI. DoLOPirs. 



hb. Front margined l)ehind the labrnni : tarsi slightly lobed. the claws 

 with comb-like teeth; size small, net more than G mm. 



XXXII. Glyphonyx. 

 aa. Front flattened; month horizontal or anterior (except in AS'cricws). 

 (1. Front margined. 



e. Tarsal claws with conili-lilce teeth; color usually dull reddish- 

 brown or piceous. XXXIII. Melanotis. 

 rr. Tarsal claws simple. 

 \ f. Hind tarsi with first .ioint scarcely longer than second; color 

 dull sooty brown. XXXIV. LiMONirs. 

 ff. Hind tarsi with first .joint elongate. 

 (/. Prosternal lol>e very short. 



/(. Antennae 11-jointed ; metasternum acute. Campylus. 



hh. Antennje 12-joiuted ; metasternum obtuse. I'ityobius. 



f/g. I'rosternal lobe long. 



'/. Sutures of prosternum single; thorax usually distinctly 



longer than wide. XXXV. Athous. 



ii. Sutures of prosternum double; thorax scarcely longer than 



wide, more convex. XXXVI. Leptoschema. 



il(L Front not margined; usually slightly concave. 



j. Sides of mesosternal cavity not protuberant; size usually medium 

 or small ; color rarely uniform black. 

 k. Tarsi simple, filiform. 



/. I'rosternum not lobed in front, the sutures straight; third .ioint 



of antenmi; small; length G.5-7 nnn. XXXVII. Blades. 



//. I'rosternum lobed in front. 



m. Lobe of prosternum short, the sutures excavatetl in front ; 



elytra striate ; length 11-12.5 nnn. XXXVIII. NoTiionES. 



mill. Lobe of prosternum long. 



)i. Fnmt convex ; hind coxal plates scarcely narrower at the 

 outer end; length 0.5-7.5 mm. XXXIX. Sericus. 



nil. Front more or less flattened; coxal plates distinctly nar- 

 rower at outer end. 

 o. Tarsal claws simple; color often variegated. 



XL. Cobymbites. 

 00. Tarsal claws with a broad tooth at base; piceous- 

 bronzed, elytra reddish-brown. XLI. Oxygonus. 



/./,•. Tarsi with the second and third joints lobed beneath. 



XLII. ASAPHES. 



jj. Sides of mesosternal cavity protuberant; size large, 18 or more 

 nnn., color uniform lilack. " XLIII. Melanactes. 



