CONTENTS 
Page 
Introduction - 
_ 
_ 
_ 
ir 
Elements of Entomology 
- 
w 
_ 
19 
Definition of Insects - - 
- 
21 
Parts of Insects 
_ 
_ 
_ 
_ 
ib. 
Caput, the Head 
_ 
_ 
_ 
_ 
ib. 
Eyes - 
* 
_ 
ib. 
Antennas ... 
• 
• 
_ 
ib. 
Os, the Mouth — Labrum, Mandibul®, 
Maxilla', 
Galea? 
, Li- 
gula, Lingua, Rostrum, Proboscis 
, Haustellum, Palpi, 
Erons, Clypeus, Vertex, Gula 
- 
_ 
27- 
-30 
Truncus, the Trunk— Thorax, Pectus, Sternum, Scutellum 
30 
,31 
Abdomen — C auda, Aculeus 
_ 
_ 
_ 
_ 
33 
Aetus — P edes, Coxa, Femur, Tibia, Tarsus, Unguis, 
A) a’, 
Elytra, Hal teres 
- 
. 
_ 
33- 
-37 
(ECONOMY OF INSECTS 
- 
_ 
_ . 
_ 
38 
Of the Larva state - 
_ 
40 
Of the Pupa state - 
_ 
_ 
- 
_ 
41 
Of the Imago or Perfect state 
_ 
- 
. 
- 
42 
Observations on the different Systems of Entomology 
- 
. 
43 
Orders and Genera of Linne 
_ 
_ 
_ 
47 
Order I. Coleoptera 
_ 
_ 
_ 
ib. 
II. Ilemiptera 
- 
_ 
_ 
CO 
III. Lepicloptera 
_ 
.. 
63 
IV. Neuroptcra 
.. 
_ 
65 
V. Hymenoptera 
_ 
_ 
_ 
66 
VI. Diptera 
_ 
_ 
_ 
70 
VII. Aptera 
_ 
_ 
72 
On the Division ol •. ^als from their Organization 
_ 
74 
Division of the Animal Kingdom 
— 
_ 
75 
Characters of the Annulata 
76 
Class I. CR USTACEA. — History- 
_ 
ib. 
Subclass I. Entomostraca 
_ 
_ 
_ 
_ 
82 
Subclass II. Malacostraca 
_ 
ib. 
Legion I. Podophtiialma 
_ 
_ 
ib. 
Order I. BRACHYURA 
_ 
_ 
ib. 
Order II. MACROURA 
_ 
_ 
91 
Legion II. Edriophthalma 
- 
- 
. 
100 
