THE SILKEN FUNGUS BEETLES. 



577 



Throughout the State; frequent. January 24- October 21. Oc- 

 curs in fungi. 



1098 (3375). Ckyptophagus nodangulus Zimm., Trans. Amer. Ent. Soc, 



II, I860, 257. 



Elongate-oblong. Dark reddish-brown, strongly shining. Antennse reach- 

 ing base of thorax, the club less stout than in fungicola. Thorax finely, 

 equally and rather closely punctured. Elytra more coarsely punctate. 

 Length 2 mm. 



Marion County ; rare. April 7. 



IX. Henoticus Thorn. 1870. (Gr., ''in unity.'') 



Resembles Cryp I ophagus very closely, but is distinguished by the 

 thorax having the edges finely toothed and without thickened apical 

 space at front angles, and by the front above the base of antennae 

 being finely margined. One of the two known species occurs in 

 Indiana. 



1099 (3303). Henoticus serratus Gyll., Insect. Suec, 1827. 



Oblong, subconvex. Dark reddish-brown to blackish, sparsely pubes- 

 cent with yellowish hairs, the legs and antenna? paler. Thorax transverse, 

 deeply and rather closely punctured, the sides nearly parallel, the edges 

 with eight to ten fine teeth. Elytra distinctly wider than thorax, obtusely 

 rounded behind, sparsely and coarsely punctured. Length 1.7-2 mm. 



Marion and Posey counties; scarce. April 23 -May 11. Occurs 

 in dry fungi about the stumps of oak. 



X. Pteryngium Reitt. 1887.* (Gr., "wing + little.") 



The species of this genus are readily recognized by the rather 

 narrow, strongly depressed, finely pubescent body. The basal seg- 

 ment of the abdomen is as long as the next three combined. Of the 

 two species known, one occurs in Indiana. 



1100 ( ). Pteryngium malacum Casey, Journ. N. Y. Ent. Soc, VIII, 



1900, 102. 



Oblong, parallel, depressed. Pale reddish-yellow, shining. Antennae as 

 long as head and thorax, rather slender. Thorax one-third wider than 

 long, finely and closely punctured; sides distinctly curved, hind angles 

 rounded. Elytra scarcely wider than thorax and about three times as 

 long, finely and sparsely punctured; pubescence scarcely evident. Length 

 1.7 mm. 



. Vigo County ; rare. February 10. One specimen taken from 

 beneath a log in upland sandy woods. 



