236 THE CANADIAN ENTOMOLOGIST. 



The author also speaks of the beautiful colours and the spine-bearing 

 tubercles of the Saturniian larvse. The larva of Copaxa viultifenestrata., 

 H. Sch., is the most strikingly beautiful I have seen. In Atiiomerisjanus, 

 Cr., the spine defense system is carried to an extreme ; the length of the 

 profusely branching spines is 15 mm. to 25 mm., or twice the diameter of 

 the body, and so abundant that the larva looks like a bunch of moss a few 

 yards away ; while the quantity of poison contained in these spines is so 

 great that during the process of inflating, the fumes which are driven off 

 with the vapour are positively dangerous to the operator. 



ON THE NORTH AMERICAN SPECIES OF CHOREUTIS AND 



ITS ALLIES. 



BY PROF. C. H, FERNALD, AMHERST, MASS. 



About fifteen years ago I obtained from Dr. O. Staudinger a series 

 of all the species placed under the Choreutidje in his Catalogue of the 

 Lepidoptera of the European Fauna (1871), and made a critical study of 

 their structure to aid in the arrangement of our North American species. 

 This study also led me to look up the nomenclature of these insects, and the 

 results are given in this paper. 



There has been a growing tendency for some time to use the generic 

 names proposed by Hubner, and while at first I was not inclined to 

 adopt the genera in his Tentamen, I now feel compelled to do so. It is 

 not necessary to argue this question, since both sides were so ably pre- 

 sented years ago in this journal. 



Hubner, in his Tentamen published in 1806, proposed the name 

 Hemerophila with pariana the only species under it, and we must there- 

 fore consider it the type. The genus ShncetJiis was established by Leach 

 in the article "Entomology," published in Brewster's Edinburgh En- 

 cyclopedia in 1 81 5, with dent ana, Hub., for the type. This Encyclopedia 

 was re-published in Philadelphia in 18 16. I have not seen the Edinburgh 

 edition, but understand that the American edition now before me is a 

 reprint, at least so far as the article " Entomology " is concerned. 

 Deniana, Hiib., which is a synonym of oxyacant/ieila, L., is congeneric 

 with pariana, Ci. Ic, and therefore Sinuct/iis must fall as a synonym of 

 Hemerophila. Hiibner published the genus Guaris in his Verzeichniss, 

 p. 374, with albertiana, Cram., swederiana, StoU., and kleemaniiiana. 

 Cram., under it. As albertiana^^Q'K^'a to have been the only one of these 



