436 BIOLOGICAL SURVEY OF 



Ancistroceirus Wesmael 



A. ALBOPHALERATUs Sauss. Bar Harbor; Green Mt., July 



18-25. 

 A. CAPRA Sauss. Bar Harbor; N. E. Harbor; S. W. Harbor, 



July 20-Aug. 22. 

 A. cATSKiLLENsis Sauss. Narrows (Salman), July 21. 

 A. TIGRIS Sauss. Bar Harbor; S. W. Harbor; Long- Pond, 



Aug. 18-Sept. 7. 

 A. TJNiFAsciATUs Sauss. Salisbury Cove, Aug. 11. 

 A. WALDENii Vier. Bar Harbor; Green Mt., June 7-July 25. 



Stmmorphus Wesmael 



S. ALBOMARGiNATus Sauss. Bar Harbor, Aug. 16. 

 S. CANADENSIS Sauss. Witch Hole Pond, July 30. 

 S. CRiSTATUS Sauss. Bar Harbor, July 24. 



Odynerus Latreille 



0. KENNicoTiANus Sauss. Bar Harbor, July 27. 

 0. LEucoMELAs Sauss. S. W. Harbor; Salisbury Cove, July 

 10-17. 



Vespula Thomson 



V. (Dolichovespula) adulterina (Buyss.) var. arctica Roli- 



wer. Northern hornet. Echo Lake; N. E. Harbor; Bar 



Harbor ; Green Mt., July 12-29. 

 V. (Dolichovespula) arenaria (Fabr.) (^diabolica (Sauss.)). 



Yellow-jacket. Common, June 21-Sept. 6. 

 V. (V.) austriaca (Panz.). Bar Harbor, Aug. 16. 

 V. (Dolichovespula) maculata (L.). White-faced hornet. 



S. W. Harbor, July 10, Sept. 6. 

 V. (Dolichovespula) norwegica (Fabr.) var. norvegicoides 



(Sladen). Bar Harbor, June 23; S. W. Harbor, Aug. 21. 

 V. (V.) RUFA (L.) var. acadica (Sladen). N. E. Harbor, Aug. 



11. 



