126 BIOLOGICAL SURVEY OF 



A. PECTORALis Leach. Echo Lake; Salisbury Cove, June 27- 



July 13. The larva feeds on birch. 

 A. scAPULAEis Klug. Salisbury Cove, July 15. The larva 



feeds on white birch and elm. 

 A. sp. Salisbury Cove, July 12. 



Sterictiphora Billberg 



S. EBENA Nort. Jordan Pond, June 10. 



CiMBICIDAE 

 CiMBEX Olivier 



C. AMERICANA Lcacli. American sawfly or 'mllow worm.' 

 Salisbury Cove ; Bar Harbor, July 13-19. The larva feeds 

 on willow, poplar, elm, etc. The large white larva is con- 

 spicuous on willow. 



C. AMERICANA var. ALBA Nort. Seal Cove (Sanford) ; Salis- 

 bury Cove, June 20-July 24. 



C. AMERICANA var. LAPORTEi Lc Pel. Salisbury Cove, July 24. 



Trichisoma Leach 



T. TRIANGULUM Kby. Newport Cove; Great Head; Salisbury 

 Cove, July 11-23. The larva feeds on willow, cherry, alder, 

 etc. 



Cephidae. Stem sawflies 

 Janus Stephens 



J. BiMACULATA Nort. S. W. Harbor, July 10. 

 Xiphydriidae 



XiPHYDRiA Latreille 



X. TIBIALIS Say. Salisbury Cove, July 15 (Olsen). 



SiRiciDAE. Horn-tails 

 SiREx Linnaeus 



S. JuvENCus var. cyaneus Fab. Ironbound Isl., July (Blaney). 



Urocerus Geoffroy 



U. ALBicoRNis Fab. Bar Harbor, July 24. The larva bores 



in spruce and fir. 

 U. CREssoNi Nort. S. W. Harbor, July 29. 



