356 EXTERNAL ANATOMY OF INSECTS. 
B. Lawniarit (the Canine-teeth). . Very sharp and usu- 
ally long conical teeth *.—Ex. Foyficula, Mantis, 
Libellula. 
C. Moxranss (the Grinding-teeth). Teeth that terminate 
in a broad uneven surface, fit for grinding the food». 
--Ex. the herbivorous Orthoptera. ~ 
c. Moua (the Mola). A broad, flat, sub otund space, 
transversely grooved or furrowed, observable on the 
inner side of some mandibles that have no grind- 
ing-teeth at their apex°.—Ex. Euchlora, Anoplo- 
gnathus, Larva of Lucanus 4. 
D. Maxiti (the Under-jaws). Two organs moving 
subhorizontally, fixed on each side at the base of 
the Labium, and often parallel with it—which in 
masticating insects seem primarily designed to hold 
the food’. ‘They include the Cardo, Stipes, Lobi, 
and Palpi mazillares. 
a. Carpo (the Hinge). A small, transverse, usually 
triangular, corneous piece, upon which the Mazilla 
commonly sits ‘. 
b. Srrpes (the Stalk). The corneous base of the Maz- 
alla, below the Palpus ®. 
c. Lost (the Lobes). The parts of the Mavzilla above 
the Palpus". ‘They include the Lobus superior, the 
Lobus inferior, and the Ungues. 
A, Losus Superior (the Upper-lobe). The outer lobe 
@ Prate VI. Fic. 12. b!", and XIII. Fie. 5. b!". 
> Prats XXVI. Fic. 16. c!". 7 © JTbid. Fic. 20. d!"’, 
2 Cuv. Anat. Comp. iii. 322—. 
¢ Prates VI. VII. d', and XXVI. Fic. 9—15. 
f Ibid. e”. 8 Ibid. f! h Tbid. and XXVI. Fie, 1S —15. 
