GENERAL 
CLASSES. 
fi 
Having 
wings 
II. Two Wings 
j covered by two 
wing-cases 
II. 
Without 
wings <( 
ORDERS. CLASSES. 
f I. Wings covered with scales. 
I Tongue spiral. Lepidoptera. 
II. Wings membranous, naked. 
-Mom^A with out teeth or tongue. 
Trichopteka. Ephemerina. 
I III. Wings membranous, equal, 
reticulated. Mouth with teeth, 
without wing- ^ Rest of Neuroptera. 
cases IV. Wings membranous unequal, 
nervures mostly longitudinal. 
Mouth with teeth. A sting or 
borer in the female. Hymeno- 
ptera. 
V. Wings membranous. Tongue 
bent under the breast. Homo- 
4 ptera Leach. 
VI. Elytra half coriaceous and 
half membranous, crossed. A 
pair of membranous ivings. 
Tongue bent under the breast. 
Hemiptera Leach. 
VII. Elytra coriaceous or semi- 
crustaceous, aliform. A pair of 
membranous wings. Mouth 
with teeth. Orthoptera. 
VIII. Elytra hard and crusta- 
ceous. A pair of membranous 
wings. Mouth with teeth. Co- 
LEOPTERA. 
'IX. A pair of membranous wings. 
A pair ofpoisers. Mouth with 
a tongue without teeth. Di- 
PTERA. 
"\ X. A pair of membranous wings. 
No poisers, tongue, or teeth in 
the male. No ivings but a 
tongue in the breast of thefe- 
L male. Coccus L. 
f XL No wings. Six legs. Mouth 
1 with a tongue. Aphaniptera. 
'"XII. No wings. Six legs. Head 
and Trunk distinct. Hexapod 
Aptera, Termes, Psocus. 
XIII. No wings. 8 or 10 legs. 
Head united to the trunk. Oc- 
\ topoo Aptera, Arachnida, 
Crustacea. 
I XIV. Noivi?igs. 14 Legs or more. 
Head separated from the 
trunk. Polypod Aptera. 
L Crustacea. 
L 
III. Two Wings 
uncovered 
| "IV. Undergoing a 
metamorphosis 
V. Undergoing no 
L metamorphosis 
