THE MOUNT DESERT REGION 361 



Tetragoneura Winnertz 



T. sp. Duck Brook (Alex.) June 14. 



Exechia Winnertz 



E. auxiliaria Johan. Long Pond, June 27. 

 E. bella Johan. Long Pond, June 27. 



Brachypeza Winnertz 



B. bisignata var. divergens Johan. Bar Harbor, June 11. 



Allodia Winnertz 



A. elata Johan. Green Mt., July 25. 



Dynatosoma Winnertz 



D. nigrina Johan. Along brook at Tremont X Mt. Desert 

 line; F253. 



Cordyla Meigen 



C. volucris Johan. Duck Brook, Sept. 11. 



Phronia Winnertz 



P. insula Johan. Duck Brook (Alex.) June 24. 



Trichonta Winnertz 



T. bellula Johan. Duck Brook (Alex.) June 24. 

 T. hansoni Shaw. Mt. Desert, June 16 (Alex.). 

 T. perspicua V. d. Wulp. Bar Harbor, June 11. 

 T. sagana Shaw. Witches Hole, June 25 (Alex.). 



Mycetophila Meigen 



M. edentula Johan. Duck Brook (Alex.) June 14. 



M. exusta Johan. Bubble Brook, Oct. 1 ; F238. 



M. fastosa Johan. Bar Harbor, July 21. 



M. lenta Johan. Road by Half Moon Pond ; F243. 



M. mutica Loew var. A. Johan. Duck Brook (Alex.) June 24. 



