THE SHOKT-WIXGED SCAYEXGEE BEETLES. 6b I 



crawl into the di=-''pest recesses of eaves each day and emerge again 

 at night. Sn far luofiiga has only been foimd in eaves, and. like 

 Quedius spehnis Horn, has prubahly inhabited them tn" short a 

 time to entirely lose the eyes. 



Subfamily II. STAPHYLININAE. 



Eather large or medium-sized black or brown species having the 

 antennsB 11-jointed, situated at the front margin of the front: 

 spiracles of the thorax visible; front coxa; large and conical; tro- 

 chanters of hind legs prominent; abdomen strongly margined. The 

 principal literature treating of the North .\merican species of the 

 subfamily is as follows : 



Horn. — '"Synopsis of the <^uediini of the United States." in 



Trans. Amer. Ent. Soe.. VII, 1S78. 149-167. 

 Horn. — ''S^Tiopsis of the species of Staphylinus and the more 

 closely allied Genera inhabiting the United States." in 

 Trans. Amer. Ent. Soc, VII. 1<7S. 185-200. 

 LfConte. — ''Short studies of North American Coleoptera," in 

 Trans. Amer. Ent. Soc. VIII. 1880. 168-174. Tabulates the 

 genera Lupiaiiniis. Xantholinns and Leptolinus. 

 Horn. — ''S^Tiopsis of the Philonthi of Boreal America," in 



Trans. Amer. Ent. Soc. XI, 1884. 177-244. 

 Casey. — See above under Aleocharina'. 



Three tribes eom])risi- the subfamily, all of which are repre- 

 sented in the State. 



KEY TO TELBES OF STAPHYLIXIX^. 



a. Side margins of the thorax simple. Tribe I. Quediini. p. :;G7. 



idi. side margins of the thorax double. 

 Ij. Antennse widely separated at base. 



Tribe II. Staphtlixixi. p. :17:!. 

 hh. Antennse rather close together at liase: elytra often reddish, and in 

 most species overlapping along the suture. 



Tribe III. Xaxtholinixi. p. 894. 



Tribe I. QUEDIINI. 



The members of this tribe have the antennae iiisei-ted at the front 

 point of the side margin of the front ; head usually with a distinct 

 suture beneath the eye.-,: thorax smooth and glabrous with but few 

 dorsal punctures, its side margin single and acute; tarsi in our spe- 

 cies 5-jointed. Three of the four recognized genera are repre- 

 sented in the State. 



