412 BIOLOGICAL SI'KVKY OF 



PsiLIDAE 



Tlu> larvae live in the roots of plants and the adults are 

 found in moist shady places. 



LOXOCERA Mi'igcn 



L. collaris Loew. Flying Mt.; Echo Lake, A.ug. 2(1-29 (Alex- 

 ander). 

 L. cYLiNDRiCA var. PLEUBiTiCA Loew. Echo Lake ; Long Pond ; 



Witch Hole Pond, June 17-July 30. 



Pseudopsila Johnson 



P. collaeis Loew. Upper Hadlock Pond; Bar Harbor, June 

 11-Sept. 11. 



P. fallax Loew. Bar Harbor; Long- Pond; S. W. Harbor, 



Aug. 1(3-22. 

 P. pehpolita Johns. Duck Brook; Sand Beach near Great 



Head, Sept. 11-13. 

 P. n.sp. or an aber. of fallax Lw. Sweeping sweet fern, 



Sept. 6. 



Psila Meigen 



P. bicolor Meig. Bar Harbor; S. W. Harbor, July 17-22. 

 P. levis Loew. Bar Harbor; S. W. Harbor, June 11—21. 

 P. longula Johns. Echo Lake; Bar Harbor; Green Mt., July 



17-25. Material from Mt. Desert used in naming species. 



See B.S.N.H. Vol. 5, p. 11-17, 1921. 



Chyliza Fitllen 



C. nubecula Johns. Material front Mt. Desert was used in 

 naming this species. See B.S.N.H. Occasional papers, Vol. 

 5, p. 11-17, Nov. '21. 



COELOPIDAE 



Tn seaweed washed up on the shore is where these live. 

 The onlv North American genus. 



