

PLATE VI. 



Fig. 1. Eggs of Salda aiitliracina in bog moss. 



Fig. 2. Photograph of egg of Hyd)-o»ictia )iia)i'.ni. 



Fig. 3. Eggs of Lamprocanthia crassicornis at the base of sho/e 

 grass. 



Fig. 4. Microphotograph of the egg of Hydromeira attached to a 

 sprout of cattail. Two sprouted seeds of cattail are shown. Note the 

 superficial resemblance. 



Fig. 5. Gerris eggs laid in nature on the underside of grass blade 

 floating out upon the water. On the upper grass blade the eggs have 

 hatched. Note the longitudinal rent. 



Fig. 6. Eggs of Gerris marginatiis on upper surface of leaf blade in 

 an aquarium containing very little water. 



(278) 



