THE SHORT- WINGED SCAVENGER BEETLES. 



365 



G94 ( ). Aleochara rtjbripes, sp. nov. 



Rather stout. Head, thorax and abdomen black, shining, sparsely 

 clothed with yellowish hair; elytra dull red, darker along the base and 

 sides; antennae and legs reddish-brown. Head more than half the width 

 of thorax and, like the latter, coarsely, evenly and rather sparsely punc- 

 tate. Thorax one-halt' longer than wide, sides broadly rounded into base. 

 Elytra about as wide and long as thorax, rather closely and coarsely punc- 

 tate. Abdomen as broad as elytra, sides parallel; upper surface coarsely 

 and sparsely punctate. Length 4 mm. 



Posey County; rare. April 21. 



695 ( — — ). Aleochara pleuralis Casey, Trans. Acad. Sci. St. L., XVI, 



1906, 141. 



Rather stout, subparallel. Piceous black, shining ; elytra in great part, 

 legs and tip of abdomen dull red; antennae fuscous, paler at base, the sec- 

 ond joint much shorter than third. Thorax more than twice as wide as 

 head, two-thirds wider than long, sides and hind angles rounded ; disk finely 

 and sparsely punctate. Elytra slightly narrower and a little shorter than 

 thorax, rather finely, sparsely and roughly punctate. Abdomen at base as 

 wide as elytra, thence distinctly tapering toward apex; coarsely and sparse- 

 ly punctate. Length 4-4.5 mm. 



Lake T aporte and Vigo counties; scarce. May 2-July 3. Oc- 

 curs in. fleshy fungi. 



696 ( ). Aleochara lustrica Say, Trans. Amer. Phil. Soc, IV, 1834. 



468 ; ibid. II, 585. 



Very close to pleuralis. Differs in having the thorax dull red at sides, 

 the base and sides of elytra more broadly piceous. Elytra and abdomen 

 more coarsely, densely and roughly punctate. Length 4-6 mm. 



Throughout the State; scarce. April 15-October 1. Occurs on 

 fleshy white fungi in dense, damp woods; also beneath carrion. 



697 (9548). Aleochara scl lptiventris Casey, .Ann. N. Y. Acad. Sci., VII. 



1893, 285. 



Rather stout, linear, parallel. Piceous, shining ; abdomen black ; legs, 

 basal joints of antennae and sometimes the tips of elytra dull brownish-red. 

 Antennae reaching beyond base of thorax, the second joint shorter than 

 third. Thorax twice the width of head, one-half wider than long, the sides 

 rounded into base. Elytra evidently wider and about the length of thorax, 

 finely, densely and roughly punctate. Abdomen slightly narrower than ely- 

 tra, parallel ; the basal impressions of first three dorsal segments very 

 large, deep, coarsely and densely punctate. Length 3.8-4.5 mm. 



Marion. Orange and Clark counties; scarce. April 25-Septem- 

 ber 9. Occurs on decaying fungi. 



698 *(2055). Aleochara bimactjlata Grvh., Col. Micr. Brunsv.. 1802. 1ST. 

 Rather stout, parallel. Black, shining; elytra paler near apex as men- 

 tioned in key ; tibia?, tarsi and tips of lower abdominal segments dull brown- 



