THE MOUNT DESERT REGION 363 



Scatopsidae. The Minute Black-Scavengers 



These are scavengers and breed in decaying matter of 

 various kinds. 



Scatopse Geoffrey 



S. notata Linn. Laboratory, Oct. 9. 



Reichertella Enderlein 



K. femoralis Meig. S. W. Harbor, July 14. 



Schwammerdamella Enderlein 



S. brevicornis Meig. S. W. Harbor ; Narrows ; Bar Harbor, 

 July 11-Aug. 18. 



Rhegmoclema Enderlein 



K. atrata Say. "Mt. Desert," July 31 (McAtee). 



Aldrovandiella Enderlein 



A. halterata Meig. "Mt. Desert," July 30 (McAtee). 



Rachiceridae 



Found in woods. But one genus is in the family and about 

 a half dozen species known from the Neartic region. 



Rachicerus Walker 



R. xitidus Johns. Foot of Picket Mt. ; Bar Harbor, July 29. 



Stratiomyidae. The Solder Flies 



On flowers and especially garden ponds are good places for 

 them. 



Actina Meigen 



A. viridis Say. Bar Harbor; Echo Lake; S. W. Harbor, 

 June 7-21. 



