478 



FAMILY XI. STAPHYLINIDJE. 



&&. Wingless species; elytra very short, obliquely truncate at apex. 



ANGULARE. 



aa. Thorax very sparsely and obsoletely punctate; winged species: elytra 

 much longer than thorax. tenue. 



921 (2808). Aepedium cribatum Fauv., Bull. Soc. Linn.. II. 1878. 224. 

 Elongate-oval, depressed. Head black ; disk of thorax and elytra dark 



reddish-brown; legs and narrow margins of thorax and elytra paler; abdo- 

 men, under surface and antennae, except the base, piceous. Head about one- 

 half the width of thorax, sparsely and finely punctate. Thorax subquad- 

 rate, sides feebly curved, front angles rounded, hind ones obtuse, base al- 

 most as wide as apex. Elytra at base but slightly wider than thorax, reach- 

 ing almost to fourth segment of abdomen, coarsely, somewhat roughly, not 

 densely punctate. Abdomen smooth. Length 4.5-5 mm. 



Marion and Vigo comities; frequent locally. March 1-October 

 5. Occurs beneath bark of logs and dead leaves in damp places. 



922 (2S09). Aepedium schwarzii Fauv., Bull. Soc. Linn.. II, 1878. 225. 

 Elongate-oval, depressed. Dull brownish (or fuscous) yellow, mod- 

 erately shining; legs, sides of thorax and elytra slightly paler; antenna* 

 dusky, paler at base and apex. Thorax quadrate, scarcely wider than long; 

 sides feebly curved ; disk finely and irregularly punctate, uneven, with three 

 or four smooth raised spaces near middle and a deep impression each side. 

 Elytra distinctly wider and more than twice as long as thorax, coarsely, 

 deeply, not closely punctate. Length 3.5-3.7 mm. 



Throughout the State; frequent. February 23-October 21. 

 Occurs beneath cover in damp places. The Acidota subcarinata of 

 my "Winter Insects." 



A. angulare Fauv., color and size of schwarzii and A. tenue Lee. 

 blackish piceous in hue and 4-4.5 in length, are both boreal species, 

 taken in Michigan and probably occur in northern Indiana, 



Amphicroum lasvicolle Lee, blackish to dull reddish-yellow in 

 hue, 3.7-5 mm. in length, occurs in abundance on flowers of Cra- 

 taegus in Pennsylvania, 



Trigonodemns striatus Lee is a southern form, also blackish 

 piceous, smooth, shining, length 4.5 mm., which has been recorded 

 from Cincinnati. 



Lathrima'um sordidum Erichs., dull yellow, with piceous abdo- 

 men, 2.7 mm. in length, is also recorded from the same locality. 



LXXXII. Olophrum Erichs. 1838. (dr.. "bold.") 



Oblong-ovalr convex, black or piceous species having the man- 

 dibles and tibia' without teeth or spines; antennae slender, as long- 

 as head and thorax; elytra covering two-thirds of abdomen. One 

 species has been taken and another perhaps occurs in the State. 



