33 
GENUS XXIX. STAPHILINUS. Tab. 40, 41, and 42. 
Linn . Syst. Mat. page 683. 
The antennæ of this genus are moniliform. 
The elytra are half the length of the abdomen. 
The wings lie folded lip under the elytra. 
The extremity of the abdomen is simple, but provided with two 
oblong vesicles, which in distress are frequently projected, and 
again retracted at pleasure. 
The tarsi in all the feet are composed of five articulations. 
The Staphilini subsist on weaker insects, not sparing even their 
own species ; they are frequently found in the dung of cows. 
Their larvæ (which are scarcely distinguishable from the perfect 
insect) live in moist ground. 
GENUS XXX. FORFICULA. Tab. 42. 
Linn . Syst . Mat. page 683. 
Their antennæ are setaceous. 
The elytra are considerably shorter than the abdomen. 
The wings are folded under the elytra. 
The end of the abdomen is armed with a sort of forceps, or forked 
tail. 
The tarsi in each of the feet contain only three articulations. 
This insect is very common, and well known by the term ear- 
wig : its larva varies very little from the animal in its perfect state, 
and runs with great agility. 
From the J>fjaft£peate $re£0, by 
W. B ULMER & CO. 
