THE SHOUT- AY IX <!K D SCAVENGE! liKKTT/ES. 449 



not wider than elytra, sides gradually narrowing from base to apex. Ely- 

 tra as wide as long, both they and abdmncn sparsely punetnlate and pubes- 

 cent. Length 12.5-3 mm. 



Throughout the State; common. .January 7-Xovember 1. Oc- 

 curs beneath bark, dead leaves, etc., in open woodland. 



I, XIV. EROHOMUS Mots. 1858. (Gr., f to enter.") 



Very small black or piceous species, having the mesosternum 

 carinate, and front tarsi of male simple. Two of the four known 

 species occur in the State. 



*8G2 (2044). KRCHOMVS VENTRKTLUS Say, Trans. Amer. Phil. Soc., IV, 



1834, 400; ibid. II. 582. 



Short, broad, convex, narrowed behind. Black, strongly shining; elytra 

 and abdomen with a reddish-pieenus tinge; antenna? and legs dark reddish- 

 brown. Thorax twice as wide as long, as wide at base as elytra ; very finely 

 and sparsely punctate. Elytra together one-third lunger than wide, one- 

 half longer than thorax, finely but distinctly punctate. Abdomen, as ex- 

 posed, shorter than elytra, minutely punctulate. Last ventral of male with 

 a semicircular notch. Length 2-2.5 mm. 



Throughout the State; common. April 5-December 25. Occurs 

 in colonies beneath bark, especially that of elm and red oak. 



803 (2045). EROIIOMUS L.EVIS Lee., N. Sp. N. Amer. Col., I, 1803, 31. 



Similar to rnilrirttlus in form and color. Differs in having the upper 

 surface wholly smooth and last ventral of male triangularly notched. Length 

 2-2.5 mm. 



Posey County; rare. April IS. Occurs beneath dead leaves. 

 A member of the Austroriparian fauna. 



LXV. CONOSOMA Kraatz. 1858. (Gr., "tone + body.") 



The lack of a margin on the sides of the abdomen especially dis- 

 tinguishes this genus from all others of the tribe. The species are 

 of small size, brown, piceous or black in color, and the segments of 

 the abdomen are in death usually telescoped so that the a.bdomen as 

 exposed extends but little beyond the elytra. 



KEY TO INDIANA SPEC'IKS OF CONOSOMA. 



a. Mesosternum not carinate but obtusely elevated; body subdepivssed. 



b. Thorax piceous, hind angles broadly reddish-yellow. UTTOREUM. 

 l>li. Thorax dull yellow, apical half or third piceous. S04. KNOXII. 



da. Mesosternum distinctly carinate. 



c. Middle tibia- with only one terminal spur. 



<l. I'.ody robust, convex; hind angles broadly rounded; elytra piceous. 

 usually narrowly paler along the base. X05. CRASSUM. 



