xiv INTRODUCTION TO ZOOLOGY 



CHAPTER XXI 



PAGE 



CLASS INSECTA : Order V. NEUROPTERA (continued] . . 308 



FAMILY 2. Ephemeridae. May-flies. FAMILY 3. Perlidae. 

 Stone-flies. FAMILY 4. SiaMdae. Alder-flies. FAMILY 5. 

 Chrysopides. Lace wing-flies. FAMILY 6. Phryganeidae ( = 

 Trichoptera). Caddis-flies. Classification of Neuroptera ; 

 directions for practical work. 



CHAPTER XXII 



CLASS INSECTA : Order VI. DIPTERA . . . .327 



SUB-ORDER 1. Brachycera (Short-horned flies). The House- 

 fly, Blow-fly, Tsetse-fly, Hover-fly, Volucella, Drone-fly, 

 Chameleon-fly ; directions for practical work. 



CHAPTER XXIII 



CLASS INSECTA : Order VI. DIPTERA (continued] . .339 



SUB-ORDER 2. Nemocera (Thread-horned flies). Gnat, Mos- 

 quito, Phantom-fly, Harlequin-fly, Splay-footed Fly, Horn- 

 bearing Fly, Sand-fly, Daddy-long-legs or Crane-fly, Gall- 

 midges. SUB-ORDER 3. Aphaniptera. Fleas. Classification 

 of Diptera ; directions for practical work. 



CHAPTER XXIV 



CLASS INSECTA : Order VII. HYMENOPTERA . . . 362 



SUB-ORDER Hymenoptera Aculeata: FAMILY 1. Apidae. 

 The Honey Bee, Earth Humble Bee, Stone Humble Bee, 

 Moss-carding Bee, Burrowing Bee, Leaf-cutting Bee, Mason 

 Bee ; classification of Bees ; directions for practical work. 



CHAPTER XXV 



CLASS INSECTA : Order VII. HYMENOPTERA (continued] . 389 



FAMILY 2. Vespidae. The Common Wasp, the Hornet. 

 FAMILY 3. Eumenidae. Solitary Wasps. FAMILY 4. Pom- 

 pilidae. Running Wasps. FAMILY 5. Sphegidae. The Sand 

 Wasps. Classification of Bees and Wasps ; directions for 

 practical work. 



