INSECTS. 
529 
longitudinally, and sometimes also transversely; subject to a 
half complete transformation only. 
Section I. 
Elytra and wings horizontal; feet formed for running. 
TRIBE I.-FORFICULARIJE. 
Tarsi having three joints ; elytra nearly crustaceous, without 
reticulation, short, posteriorly truncated, joining in a straight 
suture, and covering two plicated wings; points of wings pro¬ 
jecting beyond the elytra, while in repose; abdomen terminated 
by horny forceps. 
Genus FORFICULA.— Linnceus. 
Generic Character. —Elytra short and crustaceous, wings ar¬ 
ranged under them like a fan; abdomen terminated with a pair 
of scaly pieces, forming forceps ; tarsi with three joints, the 
second of which is bifid ; antennae filiform, consisting of twelve 
or thirteen nearly cylindrical joints; palpi filiform ; labium with 
deep divisions. 
Forficula auricularia .— ’The Earwig. 
Plate XCIX. fig. 4. 
With an elongated body, of a rusty-brown colour; antennae 
four teen-jointed; eyes black; thorax dusky in the middle, and 
yellow on the sides; the forceps brown. Half an inch long. 
Inhabits Europe. 
TRIBE II.-BLATTARIiE. 
Tarsi four-jointed ; wings doubled longitudinally, and covered 
by elytrae, frequently coriaceous and thin, and reticulated; body 
always depressed, ovate or orbicular, the head concealed under 
a semicircular or orbicular thorax; maxillary palpi long, and ter¬ 
minated by an elongated axe-shaped process ; feet spinous. 
Genus BLATTA.— Linnceus. 
Generic Character. —Antennae setaceous, longer than the 
body, inserted near the margin of the eyes ; many-jointed, very 
short, and not distinct; feet formed for walking; abdomen ter- 
2 x 
