THE MOUNT DESERT EEGION 347 



A. MOEOSA Meig. {magnicornis Loew; liderella Zett.). Bar 

 Harbor; S. W. Harbor, June 7- Aug. 20. The larvae form 

 swellings in tbe stems of the iris. 



A. NASUTA Mel. {madizina Hend.). *Mt. Desert,' July 30 

 (McAtee). 



A. PARvicoRNis Loew. S. W. Harbor; Narrows, July 10-27. 



A. posTiCATA Meig. (terminalis Coq.). Common, June 8-July 

 30. The larvae mine the leaves of asters and goldenrods. 



A. pusiLLA Meig. {trifolii Burg.). S. W. Harbor; Echo Lake; 

 Seal Cove, July 13-Sept. 8. The larvae mine the leaves of 

 various Cruciferae, Compositae, Leguminosae, etc. 



A. VAEiATA Mall. Narrows, July 27. 



A. viRiDULA Coq. Green Mt., Aug. 17. 



Phytomyza Fallen 



P. ALBicEPS Meig. (P. hipunctata Loew). Mt. Desert, July 30 



(McAtee). 

 P. AQuiLEGiAE Hardy. Columbine leaf-miner. S. W. Harbor, 



June. The larvae mine the leaves of the columbine. 

 P. ATRicoRNis Meig. (P. cliry smith e mi Kowarz). Marguerite 



fly. Bar Harbor, July 19. The larvae mine the leaves of 



chrysanthemum and margTierite. 

 P. iLicicoLA Loew. Holly leaf-miner. S. W. Harbor; Echo 



Lake, July 14-17. 



Phyllomyzidae 

 Sweeping grass and bushes in open places is productive. 



Paramyia Williston 



P. NiTENs Loew. 'Mt. Desert,' July 30. On flowers of Sjnraea 

 (McAtee). 



Meonexjra Rondani 



]\r. VAGANS Fall. Bar Harbor, June 7. 



