316 BIOLOGICAL SURVEY OF 



Khagionidae. The Snipe Flies 



A woodland form where there is plenty of foliage and 

 ground growth. 



Ehagio Fabrieius (iLeptis Flabricius) 



R. GRACILIS Johns. Sieur de Monts Spring; Duck Brook, 



July 22-Aug. 18. 

 R. MYSTACEA Macq. Common, June 13-July 4. 



Chbysopilus ^lacquart 



C. QUADRATus Say. Common, July 8-20. 



Spania Meigen 



S. NIGRA var. AMERICANA Johus. Witch Hole Pond; Jordan 

 Pond, June 10-21, 1921. 



ScENOPiNiDAE. The Window-flies 

 They are said to breed in fungus. 



ScENOPiNUS Latreille 



S. FENESTRALis (Liuu.). Bar Harbor, July 29; Northeast Har- 

 bor, Aug. 10 (Minot). 



AsiLiDAE. The Robber Flies 



Along the edges of brooks and clearings in warm sunlight 

 is the place to look for these. Also where other insects are 

 attracted by freshly cut timber or cordwood. 



Leptogaster Eondani 



L. RADIUS Loew. Salisbury Cove, July 24, 1925; Mt. Desert, 



Aug. 5 (Br.). 

 L. TESTACEA Locw. Mouth of Northeast Creek, July 25, 1925. 



Scarce. 



DiocTRiA Meigen 



D. ALBius Walk. S. W Harbor ; Green Mt., June 25-Aug. 17. 



