100 THE CANADIAN ENTOMOLOGIST. 



Sept., 1899; S's, 20th Jure, 23rd Sept., 1S99 ; 27th Sept., 3rd Oct., 

 1899; 7th. 9^h Oct., 3rd Nov., all Corvallis. Oregon (Cordley), Mt. Hood, 

 Oregon; Vancouver; Washington (Am. Ent. Soc, Phila.), 28th June, 1902, 

 Vancouver, B. C. (Harvey). 

 Botnbus Edwardsii, Cress., Proc. Acad. Nat. Sci. Phil., 1878, p. 184. 



Washington; Vancouver; British Columbia ; Ft. McLeod, Aug., 1882. 

 (Am. Ent. Soc, Phila.) 

 Botnbus Americanoru7n, Fabr., Syst. Entom., 1775, P- S^o- 



One 9 without data, received from Prof. Cordley. 



PsiTHYRus, Lep. 

 Psythyrus insidat'is, Sm. 



Head above and dorsum of thorax covered with pale pubescence, 

 which extends down on the pleura. A band of black hairs reaching from 

 wing to wing. Abdomen, in the $ , black sides of apical half yellow ; ^ 

 with pale pubescence except on apical third, where it is black. 



9 4th June, 1898, Corvallis (Cordley), with posterior fz of dorsum 

 of thorax black; $ ist April, 1902, Vancouver, British Columbia 

 (Harvey); $ 28ih June, 1902, Vancouver, B. C. (Harvey); c? Mf- 

 Cheam, B. C, Aug., 1903 (Harvey). 



SPINNING METHODS OF TELEA POLYPHEMUS. 



In the Canadian Entomologist for May, 1903, page 139, Mr. J. 

 W. Cockle, of Kaslo, B. C, stated that he had found a number of cocoons 

 of T. polyphemus suspended to the twigs of trees by a silken band, after 

 the manner of Promethea, and expressed the view that this peculiarity 

 might only apply to Western America. 



He has now sent us a letter from Mr. Edward Denny, of Montreal, 

 who says that he has collected Polyphemus cocoons for several years, and 

 has taken as many as 400 in one season ; that he has found them lying 

 loose upon the ground, and also as high as fifteen feet from the ground, 

 with the leaf spun firmly to the twig. '• The method of attaching the leaf 

 to the twig seems to prevail in this district, 19 out of 20 being of this 

 character, but, strange to say, this year they seem to prefer the grass, or 

 content themselves with spinning their cocoons on the ground." 



Mr. Cockle suggests that as " the continuous wet, snow and rain in 

 the west would undoubtedly be detrimental to the life of the pupa if it 

 remained upon the ground all winter, so we find them suspending them- 

 selves from the limbs of trees ; whereas, in Montreal the extremely hard 

 and cold winter seems to afford a reason why the pupa should have the 

 protection of a heavy covering of snow." [We have never found a Poly- 

 phemus cocoon suspended by a silken band ; when attached to a twig or 

 bough it has always been by the side. — Ed. C E.] 



