INDEX 



395 



Plateau on Suckers of Dytiscus, 



55, 59 

 Plectrocnemia, 265 



Podura, 362 

 Polymitarcys, 304 

 Polynema, 219, 304 

 Pond-skaters, 349, 382 

 Prestwichia, 220 

 Ptychoptera, 170 



RANATRA, 353 



Rat-tailed Maggot, 198 



Rtaumur, Life of, 236 



on Egg-raft of Gnat, 112 



on Eristalis, 198, 213 



on Escape of Dragon-fly 



from larval skin, 340 

 on Hydrocampa, 227 

 on Polymitarcys, 304 



Respiration of Aquatic Insects, 

 118 



Rhynchota, Aquatic, 346 



SCHIODTE ON PERFORATED 



MANDIBLES, 45 

 Schmidt- Schwedt on Corixa, 



358 



on Donacia, 94 

 on Notonecta, 357 

 on Paraponyx, 234 

 on retractile processes or 



Trichoptera, 249 

 Scourfield on Copepods and 



Surface-film, 162 

 Sea-shore, Insects of the, 370 

 Sialis, 273 



Siebold on Donacia. 95 

 Sigara, 359 

 Simmermacher on suckers of 



Dytiscus, 55 

 Simulium, 141, 175, 251 



Sisyra, 359 



Sponge, Insects living upon the 



Freshwater, 359 

 Spring-tail, Water, 362, 382 

 Staphylinidae, Marine, 378 

 Stone-fly, 279 

 Stratiomys, 92, 189 

 Swammerdam, Life of, 285 



on Gnat larva, 101 



on Palingenia, 285 



on Stratiomys, 189 

 Surface-film of Water, 12, 99, 



367 



TANYPUS, 141, 152 



Taylor on Plectrocnemia, 265 



on Retractile Processes of 



Trichoptera, 247 

 Thalassomyia, 374 

 Thysanura, De Geer on, 364 



Marine, 380 

 Tipula, 140 

 Trichoptera, 236 



VAYSSIERE ON EPHEMERID^E, 



325 

 Verdat on Simulium, 187 



Viviparous reproduction, 23 



WATER AS A SPHERE OF LIFE, 



i 



Boatman, 355 

 Scorpions, 353 

 Spring-tails, 302, 362 

 Surface-film of, 12, 99, 367 

 Whirligig Beetle, 30, 382 

 Wilkinson on Pharynx of Eristalis 

 larva, 206 



on Tail of Eristalis larva, 

 20 1 



