The Rev. Wm. KinBY on a new Order of Insects. 105 
best entomologists have observed, to the thorax in Coleoptera. 
This piece Mr. Spence and myself have agreed to name.Dorsolum 
(dorslet) ; it exists in all the insects of that order, only it is 
covered by the thorax, and is that part to which the base of the 
scutellum is united *: next follows what answers to this latter part 
in other insects}, in form not very unlike the scutellum of Cole- 
optera, but situated so near the head, that at first no one would 
take it for that part. That this is the scutellum is evident from 
its situation between the elytra and the wings, and from its being 
the third piece of the back of the trunk: this piece is commonly 
followed by another narrow one, which we have called Postscu- 
tellumt; but this is obsolete in this tribe. The piece which next 
succeeds$ constitutes the principal and most conspicuous part 
of the back of the trunk, but in other insects forms only its 
declivity towards the abdomen||; we denominate the whole Lum- 
bale ; it consists of the Lumbiq and Interlumbium ** ; ; next follows 
what we have named Postlumbium dh: the. scutelliform process 
which succeeds thistt seems quite unique and peculiar to these 
insects ; itis what I Sasso mistook for the scutellum§§, but it 
is certainly not analogous to that part. The postlumbium in : 
Coleoptera and many other insects is followed and the trunk ter- 
minated by a cleft process that separates the upper part of the 
cavity of the trunk from that of the abdomen, which from its 
figure we have denominated Nates|||: but. this piece being co- 
vered by the first segment of the abdomen, can scarcely be 
deemed analogous to the process which, in the Stylopide, termi- 
nates the trunk and covers the abdomen. I shall call this ano- 
* TAB. IX. fig. 16.3. t fig. l e. t fig. 16. c. 
§ fig. 1. ffh. I fig. 16. dde. «| fig. 1. ff. and fig. re a. 
_ ** fig. l. h. and 16. e. tt fig. 1.i and fig. 16.f. ttfig- 1.2. k. Cp 
88 Mon. Ap. Ang. tom. ii. p. 113. I} Tas. IX. fig. 16. g 
NODI. P adon 
