CONTENTS 



CHAPTER XVII 



-PAGE 



Class Insecta : Order IT. Coleoptbra .... 242 



Sub-order 1. Adephaga. — The Carnivorous Water Beetle 

 and allied genera, Screech Beetles, Tiger Beetles, Ground 

 Beetles. Sub-ouder 2. Clavicornia. — Ladybirds, Cock-tail 

 Beetles, Silver "Water Beetles, Whirligig Beetles. Stjb- 

 ORDER 3. Serricornia. — Click Beetles, Glow-worm Beetles, 

 Furniture Beetles. Sub-okbee 4. Lamellicornia. — Cock- 

 chafers, Stag Beetles. Sub-order 5. Rhyneopliora. — Weevils, 

 Bark Beetles. Classification of Coleoptera ; directions for 

 practical work. 



CHAPTER XVIII 



Class Insecta : Order III. Orthoptera . . . 266 



Sub-order 1. Cursoria. — The Cockroach, Earwigs. Sub- 

 order 2. SaUatoria. — Grasshoppers, Crickets. Classification 

 of Orthoptera ; directions for practical work. 



CHAPTER XIX 



Class Insecta : Order IV. Ehyncota . . . .276 



Sub-order 1. Heteroptera. — The Water Scorpion, Water Stick 

 Insect, Water Boatman, Corixa, Pond-skater, Water Cricket, 

 Water Gnat. Sub-order 2. Homoptera. — Green-fly or Blight, 

 Chermes or Bark-lice, Frog-hoppers, Scale Insects. Classi- 

 fication of Rhyncota ; directions for practical work. 



CHAPTER XX 



Class Insecta : Order V. Nburoptera .... 295 



Family 1. Odontata (Dragon-flies). — The Blue Dragon-fly, 

 the chief genera of the sub-families Libellulidae, Aeschnidae, 

 Agrionidae, and Calopteryginae ; directions for practical work. 



