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; epipleurse en- 

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

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

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

 vation each side. One species occurs in the eastern United States, 

 including Indiana. 



2.",-12 (7521V). PHYLETHUS BIFASCIATUS Say, Journ. Phil. Acacl. Nat. Sri., 

 Ill, 1824, 268; ibid. IT, 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. Thorax twice as wide as long, convex, the 

 surface finely and <1< rsely punctate. Elytra with feebly impressed, finely 

 punctured strife; 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. 



Scapkidema ceneolnm Lee., dull greenish-bronzed, shining, length 

 3.5-4.5 mm., is a boreal species which may occur in northern In- 

 diana. 



XXI. PENTAPHYLLUS Meg. 1821. (Gr, "five + leaf.") 



Small oval brownish species, having the eyes entire and the 

 front tibia^ 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 (7538). PENTAPHYLLUS PALLIDUS Lee.. New Sp. N. Amer. Col.. I, isc.ii, 



126. 



Elongate-oval, convex. Uniform pale reddish-brown, minutely ] tubes- 

 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, Monroe, Dubois and Spencer counties; scarce. May 12- 

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



XXII. HVPOPHLCEUS Fab. 1790. (Gr., "under + bark.") 



Small siibcylindrical species, having the antennas gradually 

 thickened ; tibia? somewhat broadened ; epipleura? short. Two spe- 

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



