L34 BIOLOGICAL SURVEY OF 



Bisteridae. The I lister Beetles 



These are besl taken with meal traps in the same manner 

 as the Silphidae. 



Bisti b Linnaeus 



H. poedattjs Lec. (6586). Station F266, Aug. 21. 



H. ninsoxicus Csy. (6588). Lower Breakneck with meat 



bait, July 7. 

 II. cognatus Lec. (6592). Station F266. 

 H. pubtivtjs Lec. (6601). Penikese, Aug. 11. Scarce. 

 IL depi'rator Say (6606). Found in decaying fungi and 



other matter. Taken in meat traps. Common throughout 



the year. 



Platysoma Leach 



P. leoontei Mars. (6653). Taken under bark of both hard- 

 wood and pine trees. Lake Wood: Hulls Cove; July and 

 Aug. Xot common. 



P. COABCTATUM Lec. (6659). Salisbury Cove under bark, 

 June 25 (Blake). 



Cylistix Marseul 



( '. gracilis? Lec. (6663). Spruce stump, Penikese. This 

 specimen has the preponderance in favor of the above 

 species, but may be an undescribed one. 



Psiloscelis Marseul 



P. earrisi Lec. (6684). Base of Newport Mt. flying, June 

 11. Scarce. 



ISOMALUS Lewis 



L bistriatus Er. (6724). Station F387. 



Plegaderis Eriehson 



P. sayi Mais. (675(5). Eden in white birch log, Eden, Aug. 



25. Spruce stump opposite Penikese. Station F392. 

 P. sp. Record of capture lost. 



