180 THE CANADIAN ENTOMOLOGIST, 



acters and some which are by no means constant, such as the number of 

 spinules on different portions of the body. There are some few words to 

 which exception may be taken ; for instance, the color is not ahvays 

 " apple green," being not unfrequently greenish-white, and in such case 

 the lateral stripes are nearly black. 



But, speaking generally, the description is very accurate ; one im- 

 portant omission has, however, occurred, and it is to this omission I wish 

 to draw attention. I have, from time to time, reared hundreds of these 

 larvae, and I never saw one that had not a conspicuous red patch, with 

 white granulations, on the stigmatal portions of segments 1 1 and 1 2. That 

 so careful an observer as Mr. Lintner should have overlooked this mark, 

 had it been present in the specimens he examined, seems improbable ; and 

 now the question arises — Has not Mr. Lintner described some species 

 not rubicunda ? 



I urged this consideration on Mr. Lintner some two years since, and 

 sent him a small batch of larvae for his examination. I think he told 

 me that they all died, and, so far as I know, he has taken no further notice 

 of the matter. 



I have an indistinct recollection that some one has recently described 

 a new species of Dryocampa allied to rubicunda, but do not feel quite 

 sure ; but, any way, the questions are important — Did Mr. Lintner 

 describe D. rubicunda larva inaccurately ? or, Did he describe the larva 

 of a new species ? or. Do the larvae of rubicunda vary to the extent of 

 sometimes losing the red patch ? 



W. V. Andrews, Brooklyn, N. Y. 



food plants of saturn i a 10. 



Dear Sir, — 



The larvae of this species are unusually abundant here this season, and 

 I have taken them feeding on White Birch, Oak, -Corn, Willow, Sweet 

 Fern ( Coniptonia asplenifo/ia), Currant, Ap7>le, Wild Indigo (Baptisia 

 tinctoria), Clover, Bush Clover (Lcspedeza), Snow Berry (Syniphori- 

 carpus), and the Ash. 



L. W. GOODELL. 



Amherst, Mass., Sept. ist, 1877. 



