CONTENTS. Xiii 



PAGE 



Circulation of Blood 89 



Spiracles of Larvse of Bot-fly 91 



Wings of Insects. Wing of Scatophaga, of House-fly, of Blue- 

 bottle-fly, of Syrphus, of Midge, of Gnat, of Beetle, of 

 Cricket 



Scales of Insects. Scales of Morpho Menelaus, of Polyommatus 

 Argus, of Hipparchia Janira, of Pontia Brassica, of Silk- 

 worm-moth, of Clothes-moth, of Podura, of Lepisma Sac- 

 charina 96 



Elytra of Diamond Beetle 99 



Feet of Insects. Foot of Syrphus Leg of Dytiscus, or Dy ticus 

 Foot of Wasp, of Ophion Leg of Bee, of Gyrinus, of Bra- 

 chinus, of Anchomenus, of Calathus Castelloides Sting of 

 Wasp and Bee, of Gnat, of Tabanus 99 



Egg of Bot-fly, or (Estrus 103 



CHAPTER III. 



INSECTS MOUNTED WHOLE. 



The Telephorus, or Soldier -beetle Melophorus Granularis 



Catheretes IJrticae Coccinella, or Lady -bird 105 



Hemiptera. Velia Rivulorum Notonecta, or the Water Boatman 

 Reduvius or Bed-bug Cimex, or Field-bug Aphis 

 Aphrophora, or Cuckoo-spit Thrips Ill 



Hymenoptera. Tenthredo, or Saw-fly Cypheus Pygmseus Ich- 

 neumon fly Microgaster Glomeratus Aphidius Avenae 

 Ephedrus Plagiator Ceraphron Carpenterii Chelymorpha 

 Phyllophora, or the Turtle-shaped Leaf-bearer 115 



CHAPTER IV. 



DIPTEEA. 



Culex Pipiens 125 



Ptychoptera 129 



Scatophaga. The Family of the Brachycera The Scatophaga 

 Lonchoptera Bibeo Dolichopus The Opomyza Chlorops 

 Phora Leptis Asilus Empis Empis Stercorea 

 Hilara Syryhus Pyrastri Borborus Equinus Sepedon 

 Sepsis 130 



The Halteres, Poisers, of Diptera. Halteres of Blow-fly Hal- 



teres of Tabanus . 147 



