1908] Notes on Ph^ocyma. 133 



NOTES ON THE SPECIES OF PH.^OCYMA, FOUND IN 



CANADA. 



By John B. Smith, Sc.D., Rutger's College, New Bruns- 

 wick, N. J. 



The species of Homoptera were studied by the Rev. C. J. S. 

 Bethune in 1864, and the North American forms were listed and 

 described in the Canadian Journal, Vol. X, for 1865 ; — a publica- 

 tion not easily gotten hold of at the present time. Most of the 

 material came from Port Hope, Canada, and several new forms, 

 from that locality, were described. That paper forms the basis 

 of our knowledge of the American forms to-day, and as I have 

 just finished a revision of the species from fuller miaterial than 

 was available over 40 years ago, a few notes on the species 

 found in Canada or likely to be found there, may not be amiss. 



And first, the name Homoptera, Bdv., must fall in favor of 

 PhcBocyma, Hbn., an earlier name for the same generic concept 

 and Ypsia, Gn., comes under the same head. Zale, Hbn., differs 

 only on minor points and secondary sexual characters; but may 

 be retained as a section of Phceocyma in a subgeneric sense. 



P. LuNATA, Drury. Occurs throughout the Dominion east 

 of the Rocky Mountains, after midsummer and until late fall. 

 This is the largest of the species and extremely variable in 

 colour and maculation. The males are more or less marked with 

 blue and may have the entire terminal area blue powdered, 

 and that is the form described as edusa, by Drury, the female 

 having been first described as hinata. There is a form occurring 

 in both sexes in which the median area is decidedly yellowish, 

 and that was described as sounder sii by Dr. Bethune. 



P. Undularis, Drury. Redescribed by Dr. Bethune as 

 nigricans, wdiich is quite as appropriate a name; for the species 

 is intensely black, besides having the wings crossed by undulat- 

 ing lines. I have seen specimens from the eastern provinces only ; 

 but the range is probably as great as that of the preceding 

 species, though it is much less common. It flies in June and 

 July. The variety umbripennis, Grt., differs in having the 

 median area of primaries much lighter, with a violaceous tint. 



P. .-Eruginosa, Guen^e. Similar to the preceding and 

 occurs with it; but is much rarer. It differs in having an irro- 

 ration of green or bluish scales and in structure as well. 



P. NoRDA, Smith. A very brilliant species from Kaslo and 

 other points in British Columbia and Manitoba; the type 

 material coming from Mr. J. W. Cockle of Kaslo. It ranges 



