THE MOUNT DESERT REGION 319 



Thyridanthrax Osten Sacken 



T. ALTERNATA Sav. Statioii F260 ; Wood road Eden, July 31- 

 Aiig. 8. 



Villa Lioy (Anthrax of authors) 



V. ALTERNATA (Sav). Bar Harbor, July 20. 



y. HYPOMELAs Macq. S. W. Harbor, Aug. 5-22. This lias 

 been bred from one of the cut-worms. 



V. LATERALIS (Say). Common, July 29-Aug. 23; Great varia- 

 tion in size. 



V. LATERALIS var. GRACILIS Macq. Bar Harbor ; S. W. Harbor, 

 July 15-22. 



V. FULviANA var. NiGRicAUDA (Loew). Common, July 19-Sopt. 

 6. 



V. TEGMiNiPENNis (Sav). S. W. Harbor, July 17-Aug. 21 

 (Fernald). 



V. MORio (Linn.). Bar Harbor ; Eden ; S. W. Harbor, June 11- 

 July 17. 



BoMBELius Linnaeus 



B. MAJOR LiniL ]\rorrell Park on Mjluets,' May 27; Station 



F236. 

 B. PYGMAEus Fab. Bar Harbor, June 7-11. IMorrell Park, 



May 27; NeAvqDort Meadow, June 11. 



Cyrtidae. The Little-headed Flies 



Some of the species in this genus are parasitic on spiders. 

 Sweeping bushes in swampy places is the only general way 

 to take them. 



Ogcodes Latreille 



O. PALLiDiPENNis Locw. Loug Poud ; Eden, July 16-Aug. 7. 

 0. cosTATUs Loew. S. W. Harbor, July 15; Eden, June 25- 

 July 13 (C. H. Blake) ; Bar Harbor (Br.), July 2. 



Obsebius Costa 



0. PTERODONTiNus 0. S. Top of Robiusou Mt., May 1, 1912 

 (Fernald). 



