THE MINUTE TRBE-FUNGUS BEETLES. S!>7 



I. Cis Latr. 1708. (Gr., "a worm in wood.") 



This genus is sufficiently characterized in the above table. 

 Casey recognizes 22 species, mostly from the AVestern and Southern 

 States, 19 of which he describes as new. Of these but four have 

 been taken in Indiana, while three others are herewith described 

 for the first time. 



KEY TO INDIANA SPECIES OF CIS. 



it. Hairs of elytra stiff and bristle-like, sometimes very short and subde- 



pressed. 



b. Elytra deeply punctured throughout, some or all of the punctures 

 arranged in rows; apical angles of thorax obsolete; body narrow, 

 parallel. 



c. Elytral punctures deep, nearly uniform in size, all bearing hairs; 



color dark reddish-brown or piceous. 1700. CREBERRIMUS. 



cc. Elytral punctuation dual, consisting of finer, deeper, seta-bearing 



punctures, with larger shallow nude punctures intermixed ; color 



black, shining. 1701. FALLI. 



bb. Elytra with none of the punctures arranged in regular rows; usually 



with larger shallow ones mingled with smaller and deeper ones, 



which bear the set;e. 



d. Elytra with distinct stiff yellowish bristle-like hairs arranged in 



rows; body stouter, more convex. 



e. Thorax of male without a prominent suberect lobe in front. 

 /. Elytra rugulose, the punctures indistinct; third joint of an- 

 tennae longer than fourth. 1702. FUSCIPES. 

 ff. Elytra but slightly rugulose, the large shallow punctures very 

 evident ; third joint of antennae equal to the fourtn. 



1703. CHEVROLATII. 



ee. Thorax of male with a prominent suberect lobe in front; clypeus 



with two distinct triangular teeth. 1704. CORNUTUS. 



<1(1. Elytra with very short, scarcely evident, bristles; body narrow, 



parallel. 1705. CONFUSUS. 



aa. Hairs of elytra long, slender, not bristle-like, but erect and conspicuous; 



elytral punctures confused; last joint of maxillary palpi acutely 



pointed. 1706. URSULINA. 



1700 (5388). Cis CREBERRIMUS Mellie, Ann. Ent. France. VI, 1848, 357. 



Oblong, subcylindrical, narrow, parallel, more or less depressed. Dark 

 reddish-brown; antennae and legs dull brownish-yellow. Thorax wider than 

 long, sides feebly rounded into the front margin ; surface densely and rather 

 coarsely punctate. Elytra with prominent stiff and bristle-like yellowish 

 hairs, arranged in rows; densely punctured, the punctures nearly uniform 

 in size. Length 1.5-2 mm. 



Southern half of State, frequent; Lake County, rare. March 

 4 October 1. Occurs on fungus- covered stumps beneath bark; 

 taken also by sifting. 



