386 FAMILY XI. STAPHYLINIDJi;. 



narrowed in front. Elytra very little wider than thorax, densely punc- 

 tured, subopaque, finely pubescent. Abdomen parallel, slightly iridescent, 

 densely and rather finely punctate. I^ength 4.5-5 mm. 



Steuben. Vigo, ].;iwreiiee, Posey and Crawford counties; rare. 

 A pril 22-Oetober 7. 



742 (219T). Philonthus lomatus Erichs., Gen. Spec. Staph., 1840, 4s:i. 

 Jloderately elongate, more robust than in tnioans. Head black, shin- 

 ing; thorax and elytra black or dark brown, bronzed; under surface and 

 .ibdomen piceous, the margins of the ventral segments paler; legs dull yel- 

 low. Antennae nearly half the length of body. Thorax oval, longer than 

 wide, narrowed in front. Elytra not wider at base than thorax, together 

 one-third longer than wide ; rather closely and finely punctate. Abdomen 

 more sparsely punctate and as wide at base as elytra, thence feebly but 

 distinctly tapering to apex. Male with front tarsi rather broadly dilated 

 and last ventral with a triangular notch. Length 6.5-8 mm. 



Throughout the State; one of the most conunon of the Staphy- 

 linids. March 17-October 14. Occurs beneath cover, more com- 

 monly in low moist places. 



P. alumnus Erichs. and P. cunctam Horn are species of south- 

 ern range, which may perhaps be found in southern Indiana. P. 

 irqualis is a member of the boreal fauna which may inhabit the 

 northern counties of the State. 



743 *(2200). Phii.onthds bbdnhbus Grav., Mon. Ool. Micr., 1806, 172. 

 Short, rather robust. Dark chestnut-brown to piceous, shining; l^s 



and basal joints of antennae dull yellow; apical margins of ventral seg- 

 ments paler. Antennae reaching middle of thorax, joints 4-10 as wide as 

 long. Thorax slightly wider than head, longer than wide, feebly narrowed 

 in front. Elytra very little wider than thorax, densely, finely and roughly 

 Iiunctate. Abdomen densely and finely punctate above, more sparsely and 

 coarsely beneath. Apex of last ventral of male with a large oval notch. 

 Length 5-5.5 mm. 



Throughout the State ; frequent. March 13— December 8. Oc- 

 cui-s in fungi and beneath rubbish in damp woods ; also at carrion. 



Group D. 



In this group the front tarsi in both sexes are not at all dilated 

 and the under surface of the tarsal joints bears sparse, short, stifE 

 hairs, while in the preceding groups the under surface is thickly 

 clothed with silken hairs. The dorsal punctures are variable in 

 number. 



KEY TO INDIANA SPECIES OF GBOUP D. 



". Dorsal punctures three. 



b. Thorax wider than long; el.ytra metallic blue or green. 



744. CVANIPKNNIS. 



