THE CANADIAN ENTOMOLOGIST. 239 



The egg is deposited by the parent fly in the gall, or at its entrance. 

 Each gall is usually occupied by several full grown lice, and from 50 to 500 

 minute yellow eggs, which are gradually dei)Osited and as gradually 

 hatched. The young larva of our new found friend is very active, and 

 groping about within the hollow of the gall, seizes on the young lice as 

 hatched and sucks them dry. We could find no evidence of its attacking 

 the parent lice, as long as the newly-born and tender progeny were 

 in sufficient abundance to furnish it with a constant supply of fresh 

 food. In some instances one larva, in others two were found in a single 

 gall ; but in no instance have we found living lice with the chrysalids, an 

 evidence that this insect does its work throroughly. A sufficient number 

 of galls have not yet been examined to determine with any accuracy the 

 proportion occupied, but they appear to be sufficiently numerous to ma- 

 terially check the increase of this destructive pest. — [Ed. C. E. 



CORRESPONDENCE. 



Dear Sir : In the last number of the Canadian Entomologist, at p. 

 219, by the omission of quotation marks at the beginning and end of the 

 piece of poetry, I am credited with the authorship of these lines. This 

 is a mistake; my signature should have come after the word Entomologist 

 on the previous page, and the whole of the subsequent part is a quotation 

 from the Dublin Penny Journal. By making this correction as soon as 

 possible, you will greatly oblige yours truly, J. Fletcher. 



Dear Sir : In reply to Dr. Hagen's note I would say that Staudinger's 

 errata does not alter my position (which can be proved by Staudinger's 

 preferring Scabriuscula to Pinastri — I took the Papilio as better known), 

 but merely shows that he would have still preferred Sinon, if Podalirius 

 had not really been " Vetustms.'' A reference to Staudinger's "Preface" 

 proves his position and my own. If this note of Dr. Hagen's is intended 

 as a quid pro quo by the good Doctor for my finding himself and Mr. W. 

 H. Edwards insufficiently citing Ochsenheimer, I don't think it a success. 

 Habef? A. R. Grote. 



Rev. W. J. Holland, of Pittsburg, Pa., wishes to correspond with any 

 one in Canada desiring to exchange Coleoptera or Lepidoptera. 



