56 THE CANADIAN ENTOMOLOGIST. 



afifinity, and Philodice stands No. 58 in his series, Alexandra, Emilia and 

 Barbara intervening between it and Pelidne. And C. Scudderi is given 

 as a synonym of Pelidne, not even worthy to be called a variety. 



Being recently in New York, I saw in the collection of Mr. Henry 

 Edwards several examples of what Mr. Strecker had sent him as Cliristiim 

 from Hudson's Bay, where this complication of species is said to be the 

 normal condition. These examples embraced ^Scudderi, ^ $ Oca- 

 dejitalis, and no Christijia at all ! 



While on this subject, I may as well add that C. Barbara, H. Edw., 

 spoken of above, stands as a good species in Strecker's Cat., No. 57, and 

 C. Harfordii, H. Edw., is put as a var. of C. Chrysotheme, No. 60, 

 although the latter is not an American species. It is however an orange 

 species, whereas Harjordii is a yellow one, and Harfordii and Barbara 

 are really one and the same thing. Mr. H. Edwards suggested this in a 

 paper in Proc. Cal. Acad. Sci., 17th June, 1878, and he informs me that 

 he is at present fully satisfied of the identity. After inspection of the 

 specimens in his collection I agree with him. 



MIGRATION OF DRAGON-FLIES— ^^i-r//;w heros'- (Fabr.) 



BY A. H. MUNDT, FAIRBURV, ILL., LIVINGSTON CO 



On, the evening of August 13th, 1881, I observed them between the 

 hours of 5 and 7 o'clock. The air for miles around seemed literally alive 

 with these dragon-flies, from a foot above ground to as far as the eye 

 could reach, all flying in the same direction, a south-westerly course, and 

 the few that would occasionally cross the track of the majority could all 

 the more easily be noticed from the very regular and swift course they 

 generally pursued ; but even these few stray ones would soon fall in with 

 the rest again. Very few were seen alighting, and all carefully avoided 

 any movable obstacles. 



The next day very few were seen on the prairies, and these mostly of 

 another species very abundant in this country, Anax jimiiis (Drury), 

 which were probably at home previously, and in a few days I could see 

 none others but the latter. A few newspapers, and also a few correspond- 



CEschna heros, Fabr. 



