142 THE CANADIAN ENTOMOLOGIST. 



and that he had also made the same observation several years in succes- 

 sion ; though he had never actually seen them feeding on the Aphids, they 

 were always found among them." At a subsequent meeting, Feb. ii, 

 1886, " Mr. Howard read a note from Prof. Riley in relation to the food 

 habits of F. TaJ-qiiinius, in which it was stated that he had had for some 

 time in his notes the records of observations by Mr. Pergande, who had 

 found the larvae actually feeding on the following species of Aphididae : 

 Pemphigus Fraxinifolii, Schizoneura tessellata, and Pemphigus imbricator. 

 The last named species is the one referred to by Messrs. Johnson and 

 Lugger, at the last meeting." Ent. Amer., vol. 2. 



Prof. Riley gave an abstract of the accounts by different authors of 

 Targtiinms, in "Science," Vol. 7, No. 169, April 30, 1886, and of what 

 was known as to its food, and stated four reasons why it was " more than 

 probable " that different species of plant-lice " are the normal food of this 

 larva." The essential reasons are the first and fourth. That attempts to 

 feed the larvae on leaves had proved futile. That both Mr. Lugger and 

 Mr. Johnson had found the larvae, but never dissociated from the plant- 

 lice. But, concludes this paper, " neither of these observers were able 

 to get positive proof of the fact." That is, I suppose, " proof of the 

 fact " that aphides were the sole food, because all the gentlemen named 

 had seen the larvae eating aphides. 



That is all, so far as I know, which has been published on this matter 

 to the present date. I am pleased to be able to say now that the full 

 history of Tarquinius from egg to chrysalis has been followed out the 

 past season, by Miss Emily L. Morton, of New Windsor, Orange Co., 

 New York, well known as an enthusiastic lepidopterist. It has cost much 

 patient labor, the observations having to be made mostly at a distance 

 from home, in difficult ground, and running through several weeks. But 

 the object has been attained, and I think little can remain to be discov- 

 ered about the habits of Tarquiniics. 



Miss Morton kindly wrote me her notes from day to day, and sent 

 eggs and larvae repeatedly, as well as supplies of aphides. Also sent the 

 same to Mrs. Peart, at Philadelphia, so that drawings could be made at 

 every stage. I propose to pubHsh these drawings soon in But. N. A., 

 Vol. 3. 



Miss Morton wrote nth Aug., 1886: " I saw a Tarqui?iius layivig an 

 egg on the twig enclosed (alder). She flew about and finally settled on 

 the branch, depositing the egg right in the middle of the aphides. From, 



