C>3G FAMILY XXVI. NITIDULTD.IC. 



or rows of iiunctures ; autennal grooves strongly convergent. 

 d. Labrum bilobed; males with a sixth ilursal segment; length 

 2-4.7 mm. VI. Epub^a. 



del. Labrum feebly emarginate ; males without sixth segment ; length 

 3.5-5.5 mm. VII. Nitidula. 



cc. Abdomen wholly covered; elytra with either costas or rows of punc- 

 tures; antennal grooves iiarallel, jmssing directly backwards; 

 length 2.3 mm. VIII. Stelidota. 



hi). Tarsi not dilaled or very feebly so; tips of elytra rounded, wholly 

 covering the abdomen. 

 c. Mentum broad, covering the base of the maxilloe ; margin of thorax 

 and elytra very wide and flat, translucent ; length 5-6 mm. 



IX. Pbometopia. 

 ee. Mentum not covering the maxillte. 

 f. Front not lobed over the antenna?. 

 g. Elytra subcdstate ; mandibles with tip slightly bifid ; length 

 more than 5.5 mm. X. Phenolia. 



gg. Elytra without trace of costxe ; mandibles not bifid at tip ; 

 length less than 4 mm. XI. Omosita. 



ff. Front lobed over the insertion of antenno9 ; margin of thorax and 

 elytra as in Prometopia ; length 4-5 mm. XII. Soeonia. 



00. Presternum elevated behind the front coxre, often prolonged. 



h. Mesosternum not carinate; body oval or rounded, convex, pubescent; 



tarsi not dilated ; length 3-4 mm. XIII. Pocadius. 



Ml. Mesosternum carinate; body oblong, subdepressed ; tarsi all dilated; 



length 2-2.5 mm. XIV. :\Ieligethes. 



VI. Epur/ea Erichs. 1S4:]. (Tlr., '-nnon -i- tail.) " 



Thi.s is the largest genus of the family and is composed of small 

 depressed species very difficult to scp.-iralc. They have the labrum 

 bilobed; antennae with an abrupt :i-joiiitcd club and elytra either 

 truncate or entire. The mali's possess an additional anal segment, 

 and often have the middle and hind tibia3 dilated at tip. They 

 must be mounted with h'gs spread and the hind coxa" visible, else 

 they cannot be classified at all. Horn divides the species into three 

 groups, two of which are represented in the State. 



KEY TO INDIANA GROUPS OF EPUE.<BA. 



a. Middle tibia? dissimilar in the two sexes, that of the male sinuate 

 within and thickened at tip; that of the female slender. (Jroup A. 

 aa. :\Ilddle tibife similar in the two sexes, slender; hind tibi;e of biith sexes 

 similar and slender. Group B. 



Groi'p a. 

 The greatest inimbei- and the largesl of our species belong here. 

 In the male the middle tibitp are sinuate on the inner margin, the 

 apex being proloiisivd inward to a greater or less extent. The fol- 

 lowing species have liceii taken or pVobably occur in the Stale: 



