108 BIOLOGICAL SURVEY OF 



BoLiTOBius Stephens 



B. ciNCTicoLLis Say (4723). All of this genus are fungi 

 feeders and live in damp places. Cedar swamp on Eagle 

 Lake Road in meat trap, Sept. 3. Salisbury Cove, Duck 

 Brook, July 23-Sept. 11. 



B. ANTicus Horn. (4724). A northern form. Sweeping lower 

 Breakneck bog. 



B. TRiNOTATus Er. (4727). In poplar log Newport Meadow, 

 June 12. 



Bryoporus Kraatz 



B. RUFESCENs LeC. (4737). Lives beneath bark and debris. 

 Mt. Desert, Aug. 29-Sept. 20 (Br.). 



Mycetophorus Mannerheim 



M. piCTUS Horn (4743a). Mt. Desert on fungi, Sept. 22 (Br.). 



BoLlTOCHARA Mannerheim 



B. sp. This genus lives in damp debris. One specimen taken 

 in 1933. Rare. 



Gybophaena Mannerheim 



G. FLAvicoRNis Melsh. (4961). From dry toadstool Penikese, 

 Oct. 3. In U. S. N. M. Rare. 



Atheta Thomson 



A. sp. This genus lives in fungi and moist vegetable debris. 

 Best taken by sifting. S. W. Harbor, Aug. 26. 



Aleocharinae 



Large series of these have been taken on fungi and set 

 aside, for as E. A. Chapin says, *'at present nothing can be 

 done with these." 



