THE SHORT-WINGED SCAVENGER BEETLES. 



447 



last dorsal with entire hind margin. The females have the front 

 tarsi feebly or not at all dilated, last ventral semi-circular and the 

 last dorsal with four equal acute teeth. 



KEY TO INDIANA SPECIES OF TACHYPORUS. 



(/. Form convex and rather robust. 



6. Color in great part pale reddish-brown or reddish-yellow, 

 c. Elytra bicolored. 

 d. Under surface piceous. 



e. Elytra with sides and an oblique discal spot on each black ; 

 abdominal segments piceous at base. 855. maculipennis. 

 ee. Elytra with basal half or two-thirds shining black; abdomen 

 above reddish-yellow, the last two segments black. 



856. PULCIIRUS. 



dU. Under surface, except last two segments, pale ; elytra with scu- 

 tellar blotch only black. 857. elegans. 



cc. Elytra uniform in color or slightly darker around the scutellum ; 

 thorax and elytra paler than abdomen. 

 f. Thorax not broader than elytra, rapidly narrower to apex. 



858. jocosus. 



ff. Thorax broader than elytra, its sides strongly curved. 



S59. CHRYSOMELINUS. 



bb. Color pitchy black ; apex of elytra paler ; femora and coxre piceous. 



NANUS. 



aa. Form more or less depressed, slender. 



g. Color dark fuscous brown to pitchy black ; elytra in part or wholly 

 paler ; third joint of maxillary palpi normal. S60. scitulus. 



gg. Color reddish-yellow ; third joint of maxillary palpi stout. 



861. BRUNNEUS. 



*855 (2632). Tachyporus maculipennis Lee, Proc. Phil. Acad. Nat. Sci.. 

 1866. 374. 



Head black, smooth: thorax and elytra dark reddish-brown, strongly 

 shining; elytra each with an oblique spot near middle and an oblong one 

 on side, black, these sometimes united ; basal portion of abdominal segments 

 and under surface piceous; legs and antennae pale. v Thorax smooth, nearly 

 twice as wide as long, not wider than elytra, sides curved, hind angles ob- 

 tuse. Elytra together wider than long, slightly longer than thorax, both 

 they and abdomen very finely and sparsely punctate and pubescent. Length 

 3.5—4 mm. 



Southern two-thirds of State; frequent. February 10-Decem- 

 ber 7. Hibernates beneath mullein leaves and rubbish. The tho- 

 rax often has a dusky spot on glisk. 



856 ( ). Tachyporus pulchrus sp. nov. 



Reddish-yellow, strongly shining. Head, basal fourth of thorax, basal 

 half or two-thirds of elytra and last two segments of abdomen, black: un- 

 der surface piceous. Elytra without visible punctures, very sparsely and 

 finely pubescent. Length :» mm. 



[2\>— 23402] 



