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 TACHYPORVS. 



(i. Form convex and rather robust. 



b. 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. 

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

 above reddish-yellow, the last two segments black. 



856. PULCHRUS. 



(Id. 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 scutelhnn ; 



thorax and elytra paler than abdomen. 

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



858. jocosus. 

 /'/. Thorax broader than elytra, irs sides strongly curved. 



859. CHRYSOMELINUS. 



bit. Color pitchy black ; apex of elytra paler ; femora and coxas piceous. 



NANUS. 



(iii. 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. SCO. 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 antenna? pale. 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 disk". 



856 ( ). TACHYPORUS PULCHRTS 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 punctilio's, very sparsely and 

 finely pubescent. Length 3 mm. 



[2D 23402] 



