84 B, C. ENTOMOLOGICAL SOCIETY. 



'>. Aphis cerasifoliae Fitch., on choke cherry, Vernon. July 16. 



10. Aphis sorbi Kalt., on apple, Agassiz, July 13. 



11. Ahpis avenae Fab., on apple, Vernon, July 16. 



12. Aphis cardui Linn., on Carduus sp.. Vernon, Julv 16. 



13. Hyalopterus arundinis Fab., on Prunis sp., Nermin, |ulv 16. 



14. Melanoxantherium smithiae Monell., on Populus sp., Xernon. 

 July 16. 



15. Cladobius populeus Kalt.? on Populus (tremuloides?) \'ernon, 

 July 16. 



16. Arctaphis populifolii Essig, on Populus sp., Vernon. July 16. 



17. Chaitoghorus aceris Linn., on Acer sp., Agassiz. Tulv 13. 



IS. Chaitophorus negundinis Thomas, on Acer negundo, .Vgassiz, 

 July 13. 



19. Euceraphis betula Fitch, on Eastern birch, July 13. 



20. Phyllaphis fagi Linn., on Fagus sp. (imported ), .\gassiz, July 13. 



MYZAPHIS (APHIS) ABIETINA WALKER. Plate L Figs. 1-12. 



This insect i-- here reported for the first time from North America; 

 and should it continue to cause serious damage, as during the present 

 season, it will be necessary to develop some methods of control. 



The material and notes used with this species were furnished me 

 by Mr. R. C. Treherne and Mr. J. M. Swaine, of the Dominion Entomo- 

 logical Staff, and Dr. E. C. Van Dyke, of the LTniversity of California. 



Mr. Treherne first noticed the aphids about Ala}- 1, 1914, on spruce 

 trees in Stanley Park. Vancouver, B. C. By June 1 they had caused 

 \ery serious damage, and all of the old needles were falling. Later 

 observations by the parties mentioned show that practically every needle 

 of last year's growth had fallen from the infested trees. The current 

 year's growth was intact and uninfested. On some of the spruce twigs 

 sent in to me, I found as high as seven aphids on a single needle, and 

 nearly every needle was infested. 



Mr. Treherne writes that "this insect is as serious, if not more 

 serious, than any other insect attacking spruce in the forest lands along 

 the British Columbia Coast at the present time." 



Later in the season the aphids left the spruce and must have 

 migrated to some alternate host, where they may be found feeding on 

 either the roots or parts above ground. 



This species was first described as new in 1848, and in England has 

 received some little attention from various workers. The latest and 



