THE CANADIAN ENTOMOLOGIST. 



357 



The breeding places in which these larvte were found were 

 small depressions in the bed of a small stream and similar 

 hollows in certain small ponds, all of which were dry the greater part 



Fig. \^i.—F.sorvp/io>a ciltaui. : adult females, sliowin^^ resiing position on side wall and 

 ceiling. Enlarged (original). 



of the past summer. After they first dried in the spring they were barren 

 of fish and vegetation. Mr. Seal is satisfied that the insect is very rare in 

 the vicinity of Philadelphia. It is now important to discover the egg of 

 this interesting species. 



