SYSTEMATIC INDEX, 
PAGE 
INSECTS IN GENERAL 1 
Internal structure of insects 2 
Circulatory system 3 
Respiratory system 3 
Digestive system 4 
Secretory system 5 
Muscular system 5 
Organs of the senses 5 
Sounds made by insects 7 
Metamorphoses of insects 8 
Sexes of insects 9 
External structure of insects 10 
Head and appendages 10 
Thorax and appendages 12 
Abdomen and appendages 14 
Capturing and preserving insects 14 
Instinct of insects 17 
Insects practically considered 17 
General utility of insects 18 
Division according to food-habits 19 
Treatment of injurious insects 21 
Classification and nomenclature 22 
Division into orders 24 
Table of orders 25 
The order of Colkoptkra 26 
External anatomy 27 
Larvro and pupa) 29 
The Coleoptera practically considered 29 
Aids in classifying 32 
Classification of Coleoptera 35 
Section L PENTAMERA : 
CARABIDiE. page 
Brachlnides. 
Calleida 44 
Cymindis 44 
Casnonia 44 
Leptotraclielus 44 
Helluomorpha 44 
Chlajxiidks 45 
Panagams 46 
Chheniu8 46 
Dicaslus 46 
Diplocheila 46 
Oodes 46 
Badister 46 
Harpai.ides 47 
An isodactyl us 48 
Gynandropus 48 
Harpalus 48 
Stonolophus 48 
Bradycellus 48 
Pterostichus 48 
Poecilus 48 
Arnara 48 
Calathus 48 
Platynus 48 
Patrobus 48 
Trechus 48 
Geopiuus 48 
Agonoderus 48 
Bembidiides 49 
Tribe IL 
PREDACEOUS WATER-BEETLES. 
Synopsis of the Pentaraera 
Sub-section I. L^ilicorries. 
Tribe I. 
PREDACEOUS GROUND-BEETLES. 
Families : 
CICINDELI D^E 
Ciceudela 
CARAB11LE 
Cararidrs 
Carabus 
Calosoma 
< Sj ohms 
Nebria 
Elaplirus 
Notionhilus 
Omopliron 
SCARITIDRS 
Paaimachus 
Scarites 
Clivina 
Dyscliirius 
Braciiinides 
Galerita 
Bracliinus 
Lebia 
Dromius 
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DYTICTD/E 
Haliplus 
Cy bister 
Dytisous 
Acilius 
Hydaticus. .. 
Colymbetes. . 
Agabus 
Laccopliilus . 
Hydroporus. 
GYRINID/E. 
Gyzlnna 
Sub-section II. Clavicornes. 
Tribe III. 
WATER SCAVENGER-BEETLES. 
PARNID2E 
Parnus 
Eliuis 
Hoteroccrus 
UYDROPHILI1LE 
Helophorus 
Hydrophilns 
Berosus 
Hydrobius 
Sphteridium 
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