FAMILY XXVI. NITIDULID/E. 



or rows of punctures ; autennal grooves strongly convergent. 

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

 2-4.7 mm. VI. Epur^a. 



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

 3.5-5.5 mm. VII. Nitidula. 



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

 tures; antennal grooves parallel, passing directly backwards; 

 length 2.3 mm. VIII. Stelidota. 



l)l>. Tarsi not dilated or very feebly so; tips of elytra rounded, wholly 

 covering the abdomen. 

 e. Mentum broad, covering the base of the maxillae ; margin of thorax 

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



IX. Prometopia. 



ee. Mentum not covering the maxilla?. 

 f. Front not lobed over the antenna?. 

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

 more than 5.5 mm: X. Phenolia. 



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

 length less than 4 mm. XI. Omosita. 



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

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



aa. Prosternum elevated behind the front coxa?, often prolonged. 



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

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



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

 length 2-2.5 mm. XIV. Meligethes. 



VI. Epurtka JErichs. 1843. (Gr.. "upon + tail.) " 



This is the largest genus of the family and is composed of small 

 depressed species very difficult to separate. They have the labrum 

 bilobed; antenna? with an abrupt 3-jointed club and elytra either 

 truncate or entire. The males possess an additional anal segment, 

 and often have the middle and hind tibia? dilated at tip. They 

 must be mounted with legs spread and the hind coxae 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 EPURyEA. 



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

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

 aa. Middle tibia? similar in the two sexes, slender ; hind tibia? of both sexes 

 similar and slender. Group B. 



Gkoup A. 



The greatest number and the largest of our species belong here. 

 In the male the middle tibia? are sinuate on the inner margin, the 

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

 lowing species have been taken or probably occur in the State : 



