THE CANADIAN ENTOMOLOGIST. 213 



men brown, the apex silvery. The first pair of legs is brown on the 

 anterior surface, and the tarsi are annulate with white. Middle and hind 

 legs silvery gray. AL tx. y% inch. 



In former pages of this journal I have described a few other species 

 from Canada among species from the United States. In all of these 

 instances the habitat is given, except in the single instance of CEcophora 

 boreasella, where I find that I have omitted it. The single specimen from 

 which it was described was unfortunately destroyed while under examin- 

 ation. It was received from Mr. Saunders, Editor of this journal, and 

 was labelled No. 399. 1 do not know whether Mr. Saunders has other 

 specimens or not. 



(The specimen sent Mr. Chambers was the only one in my posses- 

 sion,— W. S.) 



NOTES ON AN INTERESTING EASTERN VARIETY OF 



ONCOCNEMIS CHANDLERI. 



BY H. K. MORRTSON, CAMBRIDGE, MASS. 



Mr. Fred. Tepper has just sent me for examination a very interesting 

 pair of insects taken on the sea shore of Long Island, which approach so 

 nearly the type of O. chandleri in my collection from the mountains of Col- 

 orado, that I cannot separate them specifically, although there are certain 

 differences, which I give below. The capture is the more valuable since 

 the species of Oncocnemis, so far as known, inhabit only the mountains of 

 Europe, Siberia, Colorado and California. 



I propose the name riparia for this form, and in case the study of 

 larger series of specimens should show it to be a good species, that name 

 can be retained for it. 



The principal difference between the insects is in the color of the 

 posterior wings ; in chandleri $ they are white with a broad black even 

 border ; in riparia $ they are entirely white, except that the veinlets are 

 stained with black and there is a slight gray shading at the costal angle ; 

 this difference is seen still more distinctly beneath, and then on the 

 anterior wings as well. The posterior wings of riparia £ above have a 

 dark gray-black border, but beneath they are white as in the male. 



