408 BIOLOGICAL Sfi;\'KV OF 



Cirrila Cresson 

 ('. GIGANTEA Cress. Narrows, Aug. 13-Sept. 12. 



EPHYDRA Fallen 



E. subopaca Loew. Narrows, Aug. 13. 



S( atella R.-Desvoidy 



S. lugexs Loew. Bar Harbor, June 11; S. W. Harbor, July 



13. 

 S. stenhammebi Zett. Echo Lake, June 17; S. W. Harbor, 



July 11. 



Dichaeta Meigen 



D. caudata Fall. Witch Hole Pond, June 13. 



Notiphila Fallen 



N. atripes Cress. Narrows, Aug - . 13. 

 N. bispinosa Cress. Narrows, July 27-Aug. 13. 

 N. loewi Cress. (N. unicolor Loew not Walker). Bar Har- 

 bor, June 22; New Mill Pond, July 12. 

 X. olivacea Cress. Bar Harbor, July 26. 

 N. vittata Loew. Bar Harbor, July 20-26. 



Brachydeutera Loew 



B. argentata Walk. S. W. Harbor, June 24. 



Scatophila Becker 



S. variabilis Cress. S. W. Harbor, Aug. 20. 



BORHORIDAE 



Another family of which the larvae live in decaying organic 

 matter. Examine such places. 



Sphaerocera Latreille 



S. BUBSULTANS Fab. Station F235. 



S. sp. Corfield on Boletus edulis in U.S.N.M. 



