44.0 EXTERNAL ANATOMY OF INSECTS. 
is, as I have just observed, probably attached. This 
elongate process of the hinge in Apis, Bombus, &c. ap- 
pears a separate articulation; and the two together form 
an angle upon which the mentum sits*, and by this the 
maxilla acts upon the labial apparatus. 
The next piece is the stipes or stalk of the mazilla. 
This is the part that articulates with the hinge, and may 
be regarded in some cases, as in the Orthoptera &c., as 
the whole of the mazilla below the feeler ; and in others, 
as in the Geotrupide, Staphylinide &c., as only the back 
of it, the inside forming the lower lobe. This piece is 
often harder and more corneous than the terminal part, 
is linear, often longitudinally angular, and in the bee- 
tribes (Apis L.) is remarkable on its inner side for a se- 
ries of bristles parallel to each other like the teeth of a 
comb». In Lezstus, a kind of ground beetle, it is armed 
on the back with four jointed spines, the intermediate 
one being forked*. M. Latreille has thus described the 
stipes of the maxille of Coleoptera: ‘* Next comes the 
stalk,” says he, ‘which consists of three parts: one oc- 
cupies the back and bears the feeler; the second forms 
the middle of the anterior face, and its figure is triangu- 
lar; the third fills the posterior space comprised between 
the two preceding; and is that which is of most conse- 
quence in the use of the mazzlla; the anterior feeler, 
where there are two, the galea, and the other appendages 
that are of service in deglutition, are part of that piece 4.” 
The third and terminal portion of the maailla is formed 
by the lobe, or lobes (Zob7), This may be called the 
2 Prarte VII. Fic. 3..a". e". Mon. Ap. Angl. i. t. xiii. f. 1. e. 
» Tbid. f. 3. a. ° Clairy. Lint. Helvet. ti. 146, t, xxiii. f. super. d. 
1 N. Dict. d’ Hist. Nat, iv. 243. 
