THE CANADIAN ENTOMOLOGIST. 19 o 



they were not feeding when seen and attempts to feed them upon leaves, 

 with which they were placed in a jar, failed. The larvae died. 



Oct. 2, 1882, several larvae were noticed with Schizoneura tessellata. 

 They were intermixed with the plant-lice and not readily observed, but 

 seemed to hide among the mass of plant-lice. They were brought home 

 with some of the Aphids for experiment, and while the butterfly larvae 

 were actively crawling about for some days, they all died without its being 

 noticed that they fed upon the Schizoneura. 



Sept. 18, 1884, again a few larvse were found among the same Schizo- 

 neura. They were placed in a jar with the branch containing some of 

 the plant-lice. Subsequently the larvse were found crawling about and 

 the lice had disappeared, some of them having apparently been eaten. 

 This gave rise to a conviction that the butterfly larva feed upon the lice, 

 but they all died without the fact being proven. 



Aug. 8, 1885, the larvse were again found of all sizes among Pemphigus 

 iitibricator. They \yere quite active, crawling over the plant-lice, and 

 stopped as soon as the twig was touched. 



The egg-shells were at the same time observed and the actual fact of 

 feeding upon the lice was proven by direct observation. 



August 1 2th several had changed to pupse, and by Aug. 20th four 

 imagos of tarquinius had issued. 



I have already sent the substance of this communication to Mr. 

 Edwards, but believe that it will have interest, in connection with his 

 article, for the readers of The Canadian Entomologist. 



Washington, D. C, Nov. 10, 1886. 



NOTE ON FENESICA TARQUINIUS Fabr. 



BY GEORGE HALEY, BROWNFIELD, MAINE. 



I have seen this butterfly light on a species of Aphis, Schizoneura 

 tessellata, found on Alnus in crowds on the bark, and from the position of 

 its abdomen it seemed to be going to lay an egg among the plant-lice, but 

 seeing me, she did not. Afterwards I scraped some of these larvse off a 

 twig of Alder and found a couple of larvse ; I sent them to Mr. W. H. 

 Edwards, and he said that they were F. tarquinius., as I thought. The 



