TABLE OF CONTENTS xi 



CHAPTER X 



pond-skaters, water-scorpions, and water-boatmen 

 (rhynchota), p. 346 



Hydrometra, 349. Gerris, 349. Velia, 351. Nepa and Ranatra, 353. 

 Notonecta and Corixa, 355. 



CHAPTER XI 



THE WATER SPRING-TAIL (PODURA) 



Life of De Geer, p. 362. Podura, 364. Isotoma, 366. Leaping upon 

 Water, 367. "* " 



CHAPTER XH 



INSECTS OF THE SEA-SHORE, P. 370 



Diptera, 373. Beetles, 374. W. F. Baker on Tibial Comb of Beetles, 

 376. Caddis-worms, 379. Hymenoptera and Rhynchota, 380. 



CHAPTER Xni 



THE CONTRIVANCES OF AQUATIC INSECTS 



Modes of Locomotion, p. 382. Modes of Feeding, 385. Modes of 

 Respiration, 385. Attack and Defence, 386. Egg-laying, 387. 



