THE CANADIAN ENTOMOLOGIST. 59 



2. All monomial collective names should be derived from the Greek, 

 and have a plural form. 



3. Only the surname of the author who first proposed a group need 

 follow its name, whether the group be used in its original or in a modified 

 sense ; but when it is desirable to indicate at the same time its recognized 

 altered limits, the surname of the writer who first proposed the accepted 

 circumscription may follow in a parenthesis. 



In systematic nomenclature, the object is to register titles, not to 

 gratify pride, and the names of authors are appended for convenience, not 

 fame ; the question of justice or injustice has no place here ; and yet the 

 above recommendation ought to be satisfactory to those who view this 

 matter in a different light. 



NOTES FROM THE EAST. 



Pieris rap.*:. — The yellow variety of this butterfly occurs here every 

 summer, from the commencement until the end of the season ; what I 

 have seen of them were of a delicate sulphur yellow. I netted all that I 

 met with, but never found a yellow female on the wing. In July, 1870, I 

 had a pot of mignonette growing on my window-sill, and observed a white 

 female Rapes laying eggs on it. I reared seven or eight of the caterpillars, 

 feeding them on mignonette, and they all assumed the pupa state ; after 

 the butterflies had emerged, a friend unfortunately opened the box and 

 some of them escaped before I had seen them. When I examined the 

 box there were five yellow females remaining in it. They had the dark 

 markings very strongly produced, as the later broods generally have ; not 

 knowing at the time the scarceness of the yellow females, I did not preserve 

 them, and I have not seen one since. I believe, with the exception of 

 one reared by Mr. Bowles at Quebec, it is the only instance on record. 

 Last spring I found some chrysalids of rapes containing parasites, but did 

 not succeed in breeding them, as the change from the cold of the open 

 air to the warmth of the house killed them. Last summer rapes was very 

 abundant here, and now the chrysalids may be seen in great numbers sus- 

 pended to the fences about the city. The parasite has increased 

 wonderfully during last season, for nearly all the chrysalids that I have 

 seen this year are infested with them. I do not think that more than one 

 in fifty has escaped their attacks. — F. B. Caulfield, Montreal, P. Q. 



Macroeasis Fabricii. — This beetle was very numerous here last 

 season, and did a considerable amount of damage to the potatoe vines ; in 



