THE CANADIAN* ENTOMOLOGIST. 293 



CHRYSOPHANUS DORCAS. 

 In the last issue of this magazine, July, page 225, in a quotation from 

 Dr. Fletcher's letter, I am credited with giving Hypericum perforatum as 



a food-plant of C. dorcas. This is a mistake. In the summer of 1884 I 

 spent my holidays -on the Bruce Peninsula, and not far from Winfield 

 Harbour. I found two shrubs, Hypericum proiificum, Shrubby St. John's 

 Wort, and Potent ilia fruticosa frequented by swarms of this butterfly. I 

 made a fair collection of specimens, but as I could spare less than an hour, 

 I found no larvae, and failed to determine the food-plant. I remember 

 going over my specimens with Dr. Fletcher, and I am sure it was 

 "proiificum " I suggested as a food-plant, and not " perforatum." In the 

 summer of 1887 I found the butterfly numerous on the boggy margin of 

 Twin Lake, Port Sydney, Muskoka, where neither of the shrubs mentioned 

 grows, and I suspected Myrica gale as a food-plant. 



Wm. Brodie, Toronto. 



ANOPHELES PERPLEXENS. 



BY C. S. LUDLOW, l'H. D. 

 Laboratory of the Office of the Surgeon-General, U. S. Army, Washington, I). C. 



In connection with the criticism of A. perplexens, mihi, made by Drs. 

 Dyar and Knab, it may be of interest to state that Dr. Knab has 

 re-examined my type, and now declares it to be a Pennsylvania mosquito, 

 an aberrant specimen of A. punctipennis. If it be a form of punctipennis, 

 it is at least so different that no one without a large series showing the 

 intermediate forms would ever suspect it. What I have always known is 

 that it is an Anopheles (as restricted by Theobald), and not a Myzorhyn- 

 c/ius, which is the Philippine genus it resembled as to colouring, and if it 

 were a Philippine specimen was quite as unique. 



Postage on Specimens. — It does not seem to be generally known 

 that the postage on Entomological specimens sent by mail is one cent per 

 two ounces — the same as book postage. It should be stated on the 

 outside of the package that it contains only Entomological specimens. 

 Correspondence must, of course, be sent separately. There is no customs 

 duty on specimens coming into Canada • insect pins and books on 

 Entomology are also free of duty. 



