THE DARKLING BEETLES. 1265 



XX. Phylethus Meg. 1821. (Gr., "member of a tribe.") 



Small oval species having the last joint of the maxillary palpi 

 elongate triangular, its outer side much the longer; epipleurae en- 

 tire; prosternum not produced. The males are smaller than the 

 females and have the front of head marked with three deep grooves 

 aTid two ridges, the clypeus with a median impression and an ele- 

 vation each side. One si)ecies occurs in the eastern United States, 

 including Indiana. 



2342 (7526). Phylethus bifasciatcjs Say, Journ. -Phil. Acad. Nat. Sci., 



Ill, 1S24, 268 ; ibid. 11, 158. 

 Elongate-oval. Reddish-brown, antenna and legs paler ; elytra dull yel- 

 low, with the suture, a broad band near middle and a narrower one near 

 apex, dark brown or blackish. Tliorax twice as wide as long, convex, the 

 surface finely and densely punctate. Elytra with feebly impressed, finely 

 punctured strioe; intervals flat, densely punctulate. Length 2-2.5 mm. 



Lake, Marion, Lawrence and Vigo counties ; scarce. May 29- 

 October 19. Occurs beneath bark and in fungi. 



Scaphidema ceneolum Lee, dull greenish-bronzed, shining, length 

 3.5^.5 mm., is a boreal species which may occur in northern In- 

 diana. 



XXL Pentaphyllds Meg. 1821. (Gr., "five -k leaf.") 



Small oval brownish species, having the eyes entire and the 

 front tibias not dilated. The males have two small blunt , tubercles 

 on the front between the eyes. One of the two species occurs in the 

 State. 



2343 (7588). PENTAPHYLLtis PAixiDUs Lee, New Sp. N. Amer. Col., I, 1866, 



126. 

 Elongate-oval, convex. Uniform pale reddish-brown, minutely pubes- 

 cent with yellowish hairs. Thorax as wide at base as elytra, thence feebly 

 narrowed to apex, hind angles obtuse ; surface very finely and closely punc- 

 tate. Elytra not striate, the punctures fine, irregular and rather dense. 

 Length 2.5 mm. 



Marion, IMonroe, Dubois and Spencer counties ; scarce. ]\Iay 12- 

 June 12. Taken by sifting the debris of beech and maple stumps. 



XXII. Hypophlceus Fab. 1790. (Gr., "under -f bark.") . 



Small subcylindrical species, having the antenna gradually 

 thickened; tibite somewhat broadened; epipleurfe short. Two spe- 

 cies have been taken in the State, while two others may occur. 



