104 BIOLOGICAL SURVEY OF 



Helodidae 

 Cyphona Paykull 



C. EUFicoLLis Say. Bar Harbor, June 22. 



C. OBscuRUS Guer. Long Pond ; Echo Lake ; Bar Harbor, July 



12-30. 

 C. coLLARis Guer. Bar Harbor; Salisbury Cove, July 15-24. 



C. VARIABILIS Thunb. S. W. Harbor; Breakneck Pond; July 

 14-Sept. 8. 



Prionocyphon Kedtenbacher 



P. DiscoiDEus Say. Bar Harbor, July 20. 



SciRTES Illiger 



S. TIBIALIS Guer. Witch Hole Pond, July 30. 

 Dermestidae 



Byturus Latreille 



B. uNicoLOR Say. Bar Harbor, July 10. 



Dermestes Linnaeus 



D. LARDARius Liuu. Lardcr beetle. S. W. Harbor ; Salisbury 

 Cove, June 24-July 10. 



Attagenus Latreille 



A. picEus Oliv. Black carpet beetle. Bar Harbor, July 

 (Moore). 



Anthrenus Latreille 



A. MUSEORUM Linn. Museum beetle. Bar Harbor; Eagle 

 Lake; Long Pond, July 16-Aug. 10. 



A. scROPHULARiAE Linii. Buffalo carpet beetle. Bar Harbor; 

 S. W. Harbor, June 16-21. 



Byrrhidae 



Byrrhus Linnaeus 



B. AMERicANUs LeC. S. W. Harbor; Green Mt., July 13- 

 Aug. 17. 



OsTOMiDAE (Trogositidae) 

 Thymalus Latreille 



T. MARGiNicoLLis Chcv. {T . fulgidiis Er.). Jordan Pond; Sal- 

 isbury Cove, June 10-July 15. Lives in the white birch 

 fungus, Polyporus hetulinus. 



