PLATE VI. 
Fig. 1. Eggs of Salda authracina in bog moss. 
Fic. 2. Photograph of egg of Hydrometra martint. 
Fic. 38. Eggs of Lamprocanthia crassicornis at the base of shove 
grass. 
Fic. 4. Microphotograph of the egg of Hydrometra attached to a 
sprout of cattail. Two sprouted seeds of cattail are shown. Note the 
superficial resemblance. 
Fic. 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. 
Fic. 6. Eggs of Gerris marginatus on upper surface of leaf blade in 
an aquarium containing very little water. 
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