.':.')() BIOLOGICAL sikvkv OF 



Tanvi'tkka Latreille 



T. frontalis (0. S.). Great Hi-ad, alt. 80 ft, June 15 (A.). 



\ot captured, but no doubt of identity. 

 T. topazina ((). S.>. Bar Harbor, June 8 (J.); Station F190, 



.June 2 (P.). 



Ctenophora Meigen 

 ('. apicata O. S. Bar Harbor, July 20-28 (B.). 



Prioxockra Loew 



P. puscipennis (Lw.). S. W. Harbor, July 13; "Witch Hole 

 Pond, Aug-. 18 (P.). 



N kimikotom a Meigen 



N. breviobcornis (Doane). S. W. Harbor, Sept. 5 (A). 



N*. euceroides Alex. Beaver Dam, June 13-2.") (A). Beaver 

 Dam, June 30 (B). 



NT. ferruginea (Fab.). Rhodora Meadow, June 15 (A) : 

 Camp Ground, Aug. 29-Sept. 3, 14 (B). Emerged from 

 pupa, Oct. 4 (B). Corfield and Penikese, July 16 (P). Com- 

 mon, June 11-Aug. 29. 



\\ [ncurva (Lw.). Corfield (P) ; N. E. Harbor (Minot) ; 

 June 16-Aug. 3. Bubble Pond (H) ; Rhodora Meadow, June 

 15 (A) ; Salisbury Cove, July 26 (A). 



N". lugens (Lw.)- Bubble Pond Inlet, June 21 (H). Bubble 

 Pond Outlet laying eggs in loose sandy soil (A). Witch 

 Hole, June 6 (P) ; Beaver Dam, June 11 (B). 



N. pedunculate (Lw.). S. W. Harbor, June 21— .July 10 ( J) ; 

 Corfield at light, June 30 (P). 



N". tenuis Loew. Northeast Harbor; Green Mt., Seal Har- 

 bor, June 26, July 25 (J). Camp Ground, June 30-Aug. 28 

 (B). Half Moon Pond, June 13 (P); Gorge Trail, July 

 28 (A). 



.V. xanthostigma (Lw.). S. W. Harbor; Eden (J); X. E. 

 Harbor (Minot), July 20-Sept. 4. 



