THE SILKEN FUNGUS BEETLES. 575 



connected by a deep channel along the basal margin. Two species 

 are listed by Casey, one of which occurs in Indiana. 



1093 (- -). CROSIMUS HIRTUS Casey, Journ. N. Y. Ent. Soc., VIII, 1900, 90. 

 Broadly oval. Piceous or Mack; legs and antenna? somewhat paler; 

 elytra dark red. black at apex, on middle of side margins and transversely 

 behind the base near the suture. Thorax nearly twice as wide as long, the 

 sides feebly converging from base to apex, not continuing those of the ely- 

 tra ; surface finely, deeply and densely punctate, the submarginal line 

 parallel to the edge. Elytra with long, rather dense pubescence and with 

 long, erect hairs in addition; surface irregularly, sparsely and rather 

 coarsely punctate. Length 1.5-1 .8 mm. 



Putnam and Posey counties; scarce. April 6-April 25. Taken 

 from a large yellow well-decayed tieshy fungus, and by sifting. 

 Known from Ohio and Iowa. 



VIII. CRYPTOPHAGUS Hbst. 1792. (Or., "cryptogam + eating.") 



This genus comprises numerous oblong or oblong-oval species, 

 distinctly though not densely pubescent, having the thorax trans- 

 verse and bearing a short tooth on each edge near the middle, the 

 apical angles thickened and base with two small fovere or pits con- 

 nected by a fine groove; front not margined. Casey lists 32 species 

 of the genus, 25 of which he describes as new. Of these five^have 

 been taken in Indiana, while one or two others doubtless occur. 



KEY TO INDIANA SPECIES OF CRYPTOPHAGrS. 



(i. Sides of the thorax distinctly angulate at about the middle, the spicule 

 or little point at apex of the angle therefore more prominent and 

 separated from the thickened node of front angle by a rounded notch. 



1094. ACUTANGTJLT S. 



IKI. Sides of thorax broadly and evenly curved from base to apex, the spicule 



near middle very small and indistinct. 

 b. Disk of thorax with four more or less evident smooth elevations and 



a short elevated ridge at middle of base. 



c. Thickened portion of front angles of thorax with a broadly oval, 

 sharply defined flat or feebly concave disk, having a large cen- 

 tral puncture. 



</. Dark reddish-brown; disks of front angles of thorax large, as 

 long as the distance thence to the median spicule. 



1095. CROCEUS. 



'/'/. Pale brownish-yellow; disks of front angles smaller, distinctly 

 shorter Hum distance thence to the spicules. 



109(5. hATICLAVl'S. 



cc. Thickened pnrtion of front angles of thorax small, irregular, nar- 

 row and without a puncture-bearing disk. 

 c. Antenna? long, rather stout, about half as long as body; length 



1.8 mm. ANTENNATUS. 



[3723402] 



