410 EXTERNAL ANATOMY OF INSECTS. 
latter part to the rest of the body. Though the head in 
most Orthoptera is not partly received into the cavity 
of the prothorax, as is the case in the Order Coleoptera, 
but is rather suspended to it, yet in some instances, for 
example in the mole-cricket (Gryllotalpa vulgaris), it is 
partially inserted. 
Again: when, in his fist mode of articulation by con- 
tact of solid parts, he speaks of one or two smooth tu- 
bercles of the neck, with their corresponding cavities in 
the prothorax, as forming the most common conforma- 
tion, you would expect to find examples of this in very 
many insects; yet upon a close examination, unless in 
Oryctes nasicornis*, and perhaps in others of the Dy- 
nastide, you would scarcely meet with any thing 
that could be called a tubercle and its corresponding 
cavity in the neck or prothorax of any Lamellicorn 
or Capricorn beetle that you might chance to examine. 
You would find, indeed, that the occiput was usually 
smooth and very slippery, as if lubricated; that in its 
margin were one or two notches (Myoglyphides), with 
muscles attached to them; that in the former of these 
tribes, the Lamellicorns, it projected on each side so as 
to form a more or less prominent angle; and that the 
throat (jugulum) was very convex, and lodged in a cavity 
of the lower margin of the prothorax: but further ap- 
pearances of tubercles, &c. you would in vain look for 
even in this tribe; and in the Capricorns you would find 
* It is probable that M. Cuvier took his idea of this first kind of 
articulation, by contact of solid parts, from this individual insect ; 
since, besides its very prominent throat, there is on each side of the 
lower part of the occiput a small elevation, or approach to a tu- 
bercle. 
