170 THE CANADIAN ENTOMOLOGIST. 



Edwards has described some one other of our yellow-winged smaller 

 species, and has afterwards mistaken his species, or mixed u)) different 

 forms at the same time. This mixed dark blue-gray form, with distinct 

 black lines and without the small basal streak of gracilis, I propose to 

 designate by the name sordida ; it varies as gracilis does in the suffusion 

 of the primaries along internal margin witli black in some specimens. 

 Both the description and the type of Mr. Edwards' parviila correspond 

 to that form of viimiia which has tliis dark suffusion on primaries. C. 

 w/;////'fl' is allied, though a smaller form, to fratercida ; both forms have 

 the dentate «\'hite subterminal line usually obvious. From an examination 

 of Kansas specimens, no doubt remains on my mind that atarah is 

 founded on more generally obscure specimens of fratercula. An example 

 oi fratercula in the collection of Dr. Bailey has the primaries suffused 

 with black over the median space. 



NOTES ON THE LARVA AND PUPA OF EUCHAETES 



COLLARIS. 



BY G. H. VAN WAGENEN, WESTCHESTER CO., N. Y. 



I have, for three seasons, raised Euchaetes collaris from the larva, it 

 being very abundant in this locality, and present the following notes as the 

 result of my observations : 



The larv£e feed on the Apocyniim androsae/nifoliuin, or Spreading Dogs- 

 bane. They will in coniinement feed on Asckpias, but I have never, after 

 careful search, found but one of the larvae on it in the field. They feed 

 at night, leaving their food-plant and hiding themselves during the day. 

 About dusk they will be found crawling up the stems of the Apocynuin. 



Unlike egle^ which feeds in companies, these are solitary feeders, and 

 I have never found more than two on the same plant ; generally there is 

 but one. The color of the hairs in the early stages of the larva is almost 

 white, but changes to slate color when ready to go into the chrysalis. 



The early broods go into the chrysalis state about the end of July, and 

 the imago appears in ten days or two weeks. The later broods remain in 



