Table of Contents 



Life History of the Oyster-Shell Bark-Louse of 



the Apple (Mytilaspis pomorum) . . 255 



The Jumping Plant-Lice or Flea-Lice (Family Psyllidce 259 

 Life History of the Pear Tree Psylla ( Psylla 



pyricola) 260 



Plant-Lice (Family Aphididce) .... 262 



Life History of the Hop Plant-Louse (Phorodon 



hnmuli) 265 



The True Bugs (Suborder Heteroptera) .... 269 



Table of Families . 270 



The Water Boatman (Family Corixidce) . . . 273 



The Back Swimmers (Family Notonectidce) . . 275 



The Water Scorpions (Family Nep/dcv) . . . 276 



The Giant Water Bugs (Family Belostomatidce) . 278 



The Creeping Water Bugs (Family Naiicoridce) , 280 



The Toad Bugs (Family Galgultdce) . . . 281 



The Marsh Treaders (Family Umnobatidce) . . 282 



The Water Striders (Family Hydrometridce) . . 283 



Life History of a Water Strider ( Hydrometra 



lineata) 285 



The Flower Bugs (Family Anthocoridce) . . . 287 



The Bed-Bug Family (Family Cimictdce) . . 288 



Life History of the Bed-Bug ( Ciniex lectularius) 289 



The Shore Bugs (Family Saldidce) . . . . 291 



The Thin-Winged Bugs (Family Henicophalidce) . 2()2 



The Assassin Bugs (Family Rediiviidce) . . . 293 



Life History of the Wheel-Bug (Arilus cristaius) 294 



The Ambush Bugs (Family Phymatidce) . . . 297 



The Flat Bark-Bugs (Family Aradidce) ... 298 



The Lace Bugs (Family Tingiiidce) .... 299 



Life History of the Hawthorn Lace-Bug {Cory- 



thuca arcuaia) 300 



The Leaf-Bugs (Family Capsidce) .... 301 



Life History of a Leaf-Bug ( Pcecilocapsus 



lineatus) 302 



The Squash-Bug and Its Allies (Family Coreidce) . 304 



Life History of the Squash-Bug ( Anasa tristis) 30$ 

 The Cotton Stainer and Its Allies (Family Pyrrhoco- 



ridx) 307 



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