THE DARKLING BEETLES. ■ 1265 



XX. PiiVLETHUS i\ret!:. 1S21. (Gr., "iiK'inltcr (if ;i 1i-il)('.") 



Small oval species liaviii^' the last Joint of the luaxillary palpi 

 el()ii<i'ate triangulai', its outer side niueh the lonticr ; epi[)U'iiric en- 

 tire; prosternuni not ])i-o(lu('c(l. 'I'he males are smaller than the 

 females and have the front of heatl marked with three deep j^rooves 

 and two ridijes, the elypeus with a median imi)ression and an ele- 

 vation eaeh side. One speeies occurs in th(> eastern I'nitcd States, 

 inehidinsi' Indiana. 



L'.'Ml' (Tr»2()). riivi.KTiirs BiFAseiATUs Say, Jonni. I'liil. Acad. Nat. Sci.. 

 HI, 1824. 2GS; ibid. II. 158. 

 Elongate-oval. Kcddisli-lirdw n. anUMuia' and Ici^s paler; cl.vlra dull yel- 

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

 apex, dark brown or blaekish. Thora.x twice as wide as lon^. convex, the 

 surface linely and densely jmnctate. Elytra witli feebly impressed, iinely 

 punctured stria?; inteiwals Hat, densely punetulate. T/ongth 2-2.5 mm. 



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

 October 19. Occurs beneath bark and in fungi. 



Sr aphid ema cmeolum 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 tihia^ 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 PAi.Ln)Us Lee, New Sp. N. Amor. Col., I, 18(i(i. 

 12G. 

 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. 



]\rarion, ^lonroe, Duliois and Spencer conntie.s; scarce. IMay 12- 

 June 12. Taken by sifting the de1)ris of beech and maple stumps. 



XXII. HvpopiiT/KiTS Fal). 1790. fOr., "under i- bark.") 



Small siibcylindrieal speeies, having the antenna' gradually 

 thickened; til)ia^ somewhat broadened; epipleura' short. Two spe- 

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



