(>•'!() l-'AAIIIA' XXVI. -NTI'IIH MD.K. 



or rows of punc-tiiros ; autenual grooves strongly convergent. 

 (7. Labruni bilobed ; males with a sixth dorsal segment; length 

 2-4.7 mm. VI. Epuk^a. 



(hi. Labrum feebly emarginate; males without sixth segment; length 

 3.5-5.5 mm. VII. Nitidula. 



cc. Abdomen wholly covered; elytra with cither costiie or rows of punc- 

 tures; antennal grooves iiarallcl. ])assing directly backwards: 

 length 2..3 mm. VIII. Stelidota. 



hb. 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 tlat, translucent; length 5-6 mm. 



IX. Prometopia. 

 ee. Mentum not covering the maxillfc. 

 f. Front not lobed over the antenna*. 

 (?. Elytra subcostate; mandibles with tip slightly bifid; length 

 more than 5.5 mm. X. Phenolia. 



Off. Elytra without trace of costte; 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. 



(/(/. Presternum elevated behind the front coxae, often prolonged. 



h. Mesosternum not carina to; body oval or rounded, convex, pubescent: 



tarsi not dilated; length ;>-4 nun. XIII. Pocadius. 



/(,/(. Mesosternum carinate ; Ixxly oblong, subdo] tressed; tarsi all dilated; 



length 2-2.5 mm. XIV. Meligetiies. 



VI. Epiir.ea Erichs. 184:]. f fir. 'Mnx)!! ^ tail.) " 



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

 depressed species vei-y (lifficiilt to separate. They liave the labrum 

 bilobed; antenna' willi an abiupt :rjointed clnh and elytra eithei" 

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

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

 mnst be mounted with legs spread and the hind coxa' visible, else 

 they cannot be classified at all. Horn divides the species into thi-ee 

 groups, two of which are represented in the State. 



KEY TO INDIANA GUOIFS OF EPUR.92A. 



M. Middle tibia' dissimilar in the two sexes, that of the male sinuate 



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



ail. Middle tibi:B similar in the two sexes, slender ; hind tibijie of both sexes 



similar and slender. Group B. 



Group A. 



The greatest nnmber and the largest of our sjx'cies belong here. 

 In the nude tlie middh' tiliia' are siiniate on the inner margin, the 

 apex lieing prolonged inward to a gi'eatei- or less extent. The fol- 

 lowing sj)ecies have brcii tak'en or probably oceiw in the State: 



