COLOR PLATE II. 
Fic. 1. Notonecta undulata Say. Our most common Kansas back 
swimmer. Magnification, 34% times. ; 
Fig. 2. Plea striola Fieb. The tiniest of the back.swimmers and the 
pigmy of the water bugs. Magnification, 3.9 times. ; 
Fic. 3. Ranatra or water scorpion. Lives in the trash of the pool and 
feeds upon luckless insects and even small fish. (This specimen iden- 
tified in our Snow collections as.Ranatra americana.) .7 natural size. 
Fic. 4. Buenoa margaretacea Bueno. A slender back swimmer whose 
main food supply consists of the little Entomostraca crustacean creatures 
which form the food supply of practically all young fish. A form harmful 
to fish culture for this reason. Magnification, 3% times. 
Fic. 5. Benacus griseus Say. The large “electric-light bug” or “giant 
water bug.” Destructive to fish up to three inches long at least. .7 
natural size. 
Fic. 6. Abedus sp? Male carrying the eggs which the female has 
glued to his back for safe keeping. .7 natural size. 
Fic. 7. Nepa apiculata Uhl. A bug belonging to the same family as 
Ranatra, the Nepide. Found in mud and debris of shallow water. Mag- 
nification, 17% times. 
Fic. 8. Pelocoris carolinensis Bueno. A “creeping water bug’’ which 
lives in the tangled vegetation of fresh pools. Predatory in habits. One of 
the quickest of the water bugs to “sting” a careless collector. (Family 
Naucoride.) Magnification, 2.2 times. 
Fic. 9. Belostoma fluminedmSay. A bug common in Kansas ponds. 
Feeds upon small water animals, including fish. The male with his back 
burdened with eggs is to be taken almost any time during summer. Mag- 
nification, 124 times. 
See P32% 
