388 BIOLOGICAL slliVKV OF 



Pipiza Fallon 



P. pemobalis Loew. Bar Harbor, .June 8. 



P. ntgropilosa Will. Bar Harbor, June 8. 



P. quadrimaculata Panz. Bar Harbor; Echo Lake, June 



13-27. 

 P. sp. Bred from galls of Pemphigus rhois on sumac (Rhus }, 



An-, L938. 



Cnemodou Egger 



('. oalcabata Loew. They like the wild rose. P^den X Town 



Hill road, July 10. 

 ( '. elongata Curr. Bar Harbor, June 9-17. 

 C. risTicoiDES Will. Long Pond; Salisbury Cove, July 10-24. 



Herixgia Bondani 

 H. salax Loew. Bar Harbor, July 20-22. 



Pipizella Rondani 



P. pubescexs Loew. Bar Harbor; S. W. Harbor, June 15 



July 15. 

 P. recedens Walk. Bar Harbor; S. W. Harbor, June 21- 



July 15. 



Chrysog aster Meigen 



( !. xigkipes Loew. Bar Harbor, July 21. 



C. ptjlchella Will. S. W. Harbor; Bar Harbor, July 10-19. 



NEOASCIA Williston 



N. globosa AValk. Bar Harbor, Aug. 10. 



Sphegixa Meigen 



S. flavimaxa Mall. Echo Lake; Bar Harbor, June 17-Aug. 



10. 

 S. petiolata Coq. S. W. Harbor ; Echo Lake; Bar Harbor, 



June 16-July 27. 

 S. rufivextris Loew. Laboratory, July 7. 



