200 THE CANADIAN ENTOMOLOGIST. 



terminal space a little darker ; s. t. line indistinct. Hind wings white, a 

 little soiled exteriorly. Beneath with distinct black dots on both wings. 

 Expanse 30 mil. Hab. Newtonville, Mass., August (Thaxter). 



This species is almost unicolorous pale mouse gray, with white hind 

 wings and distinct black discal marks. 



CORRESPONDENCE. 

 Dear Sir, — 



"What is the nature and cause of the seeming growth on the eye of P. 

 philenor and perhaps other butterflies ? I have noticed in examining about 

 100 specimens of philenor that fully one third of the number have on the 

 eye near the proboscis a cluster of yellow tubes, varying from 3 to 40, and 

 from one-twentieth to one-fourth of an inch in length. They are slender, 

 about the diameter of a small insect pin, and are terminated by a mouth 

 or cup-shaped appendage. I have found them in a few cases on P. 

 glaucus, but never on any others. If you can not answer, I would be 

 glad if one of your many subscribers would do so, and also give me the 

 name of any work that may mention the peculiarity. 



During a trip this summer I succeeded in obtaining several fine 

 Argyimis diana females and a few males. For some reason the male was 

 exceedingly scarce, though I saw quite a number of females, which had 

 not as yet laid their eggs. In crossing the mountains (the line between 

 N. Carolina and Tennessee) I noticed that Neonynipha areolatus was quite 

 abundant in the valleys along the creeks, while N. gemma was found in 

 any numbers above an altitude of 1,000 to 1,500 feet. 



Lycaena comyntas with us lays its eggs on Rag-weed, the common 

 garden nuisance. I found one doing so about six weeks ago ; there was 

 white clover within five inches of where she was. 



Eugene M. Aaron. 



Maryville, East Tennessee, Sept. 12th, 1877. 



[Can any of our readers throw any light on the question propounded 

 by our correspondent regarding P. philenor ? — Ed. C. E.] 



