THE CANADIAN ENTOMOLOGIST, 



35; 



On August 30th, 1900, sjme very large mos(|uito larvre and pup^ 

 were received from Mr. Wm. P. Seal, of the Aquarium Supply Company, 

 at Delair, N. J. An examination of these specimens convinced me that 

 they could be nothing else than the larva; and pupje of P. ciliata. The 

 first specimens received were in alcohol, and Mr. Seal was informed o' 

 their probable identity and urged to send on living specimens in water and 

 to endeavor to rear the adult himself. It was then, however, unfortunately, 

 too late. Mr. Seal wrote that during the summer a small creek and some 

 earth ponds on his place became entirely dry, in consequence of which 



Fig. 32. — Psoro/ihom ciliata: young larva 

 with enlarged antenna at left. En- 

 larged (original). 



all fish in them died. Some time in August there was a sufiicient rainfall 

 to fill a few of the deepest places, which became almost alive with 

 mosquito larvae. These were used for fish food until it was noticed that 

 they were developing to the pupa stage, when coal oil was immediately 

 poured on the water. It was when the coal oil was being applied that the 

 big larviB and pupse were first noticed. Mr. Seal had been a collecting 

 naturalist for 26 years, supplying material for the aquarium, for biological 

 research, and having discovered some low forms of life new to science, 

 described by Leidy and Ryder ; but in all his experience he had never 

 observed such large mosquito larvce. 



