90 
SYSTEM OF NATURE, 
FABRICIUS. LATREILLE. CLAIRVILLE. 
CLASSES. ORDERS. SECTIONS. 
With two pair of jaws, the lower pair palpigerous. 
Eleutlierata .Coleoptera. Elytroptera 
Ulonata.Orthoptera.Deratoptera 
ci . . , Thysanura, Psocus, 
bynistata .• ^ ’ ’ 
Piezata .Hymenoptera .Phleboptera 
Odonata .Neuroptera, p.Dictyoptera 
Mitosata .Myriapoda (class) 
With two pair of jaws, the lower not palpigerous. 
TT , Arachnida pulmo- 
U nogata .■ . 1 
& nana 
With more than two pair of jaws. 
Polygonata.Crustacea edentata ( division) 
Kleistognatha.) N 
° t „ maxillosa (division) 
Exocbnata .) 
Suctorial insects. 
Glossata.Lepidoptera.Lepidioptera 
Ryngota.Hemiptera.Hemimeroptera 
{ Diptera.Halteriptera 
Para sita 
Araclinida trachi- 
aria 
Rhipiptera 
O 
£ © 
d ^ 
=s > 
S’l 
S 
Fabricius was followed by Latreille and Clairville, whose 
nomenclature is arranged above in parallel lines with his 
own, in order that the nomenclature of Latreille may af¬ 
ford an explanation of the others : it will also show how 
completely Clairville’s divisions of Mandibulata and Haus- 
tellata were forestalled by Fabricius : that author indeed 
placed the whole of the Crustacea and Arachnida between 
Clairville’s divisions. Fabricius, in like manner, was fore¬ 
stalled by DeGeer in deriving divisional characters from 
the variations of the mouth. 
