SYSTEM OF NATURE. 
97 
Latreille's last arrangement of insects, as published in 
the 4 Cours d’Entomologie,’ is given below. 
SECTIONS. 
LATREILLE. 
CLASSES. DIVISIONS. 
'Crustacea 
Apiropoda 
Maxillosa 
Edentata 
Arachnides 
Myriapoda 
&(No metamorph. 
I 
Hexapoda ...... Insecta 
O 
£ 
k Metamorphosis. 
Elytroptera. 
^Gymnoptera 
ORDERS. 
Decapoda 
Stomapoda 
Lsemodipoda 
Ampliipoda 
Isopoda 
Diclapoda 
Lophyropa 
Ostrapoda 
Phyllopa 
Trilohita 
Xyphosura 
Siphonostoma 
Pulmonariae 
Aporobrancliiae 
Tracheariee 
Chilognatha 
Chilopoda 
Thysanoura 
Parasita 
Siphonaptera 
Coleoptera 
Dermaptera 
| Orthoptera 
v Hemiptera 
1 Neuroptera 
Hymenoptera 
Lepidoptera 
Rhipiptera 
Diptera. 
In this brief and rapid sketch of the history of Ento¬ 
mology, I have necessarily omitted the names of many 
authors, who, though perhaps not introducing any great 
H 
