266 



THE CANADIAN ENTOMOLOGIST. 



The eggs of ahominator are laid on the upper surface of Lemna 

 fronds in rather large masses. In only one instance were the eggs 

 found on any other plant, and in this case they were on the edge 

 of a Potamogeton leaf which was floating oti the water. They are 

 quite firmly attached to the frond and to each other. The base of 



Fig. 10. — Egg masies Culex ahominalov. 



the egg is truncate, facilitating a firm attachment. The eggs are 

 very black and the masses show up distinctly in contrast with the 

 green of the frond. They are always near the margin of the frond 

 and, upon hatching, the young larvae immediately wriggle off into 

 the water. 



The usual appearance of the mass is shown in the accompany- 

 ing photograph, thanks for which are due Mr. H. P. Wood. 



The writer made these observations while working on the 

 mosquitoes at Havana, Illinois, in the employ of Dr. S. A. Forbes, 

 and this note is published with his kind permission. 



