THE CANADIAN ENTOMOLOGIST. 119 



CORRESPONDENCE. 



a thirsty spider. 

 Dear Sir, — 



On the sixth of April my attention was drawn to a small black spider 

 running on the inside of my window-sill. In the course of its travels it 

 came to a drop of water that had trickled from the window pane, when it 

 stopped and commenced drinking. 



Wishing to see what it would do, I touched it with my finger, when it 

 set off at a great rate ; passing near another drop, it ran to it and again 

 commenced drinking, this time turning out of its path in its eagerness to 

 reach the water. 



I have sometimes seen Lepidopterous larv^ drinking, but had never 

 observed a spider doing so before. 



F. B. Caulfield, Montreal, P. Q. 



DYSAUXES MEDIASTINA. 



Dear Sir, — 



Dysauxes inediastina, Hubner, Zutrage, figs. 505, 506, must be erased 

 from the list of American Lepidoptera, the locality assigned to it by 

 Hubner being erroneous. The figures quoted above are excellent 

 representations of an Australian insect which I have received from New 

 South Wales. This is not the only erroneous locality which has crept 

 into Hubner's ^\Titings, as those who have studied the volumes will have 

 discovered. Yours truly, 



R. H. Stretch, San Francisco. 



PLATYSAMIA COLUMBIA, S. I. Sniit/l. 



Dear Sir, — 



In March last I found a cocoon on a maple tree, in the east end of 

 this city, which bore a very close resemblance to P. cecropia, only it was 

 not much more than half the size. I compared it with Mr. Bowles' de- 

 scription of Columbia^ and as it differed in some respects, I supposed it to 

 be cecropia. All doubts were, however, removed by the appearance of the 

 imago on the 13th May, which proved to be a fine male specimen of 

 colu7nbia. I believe this is the first that has been taken in Montreal. 



C. W. Pearson, Montreal, P. Q. 



