54 
BRITISH BEETLES. 
VI. Tlie Longicornia. 
VII. The Phytophaga, or Chrysomelidw and their 
allies, sometimes called Monilicornia. 
VIII. The Heteromera. 
IX. The Rhijncliopliora, or Weevils. 
X. The aberrant Coleoptera, or Strepsiptera. 
The Rhyncliophora are placed at the end of the nor- 
ma] Coleoptera, as containing the most archaic forms, 
and as differing in some important points from all of 
them, and the Heteromera have been located at the 
end of the other series, as affording by their varied 
forms a sort of epitome of them all ; this latter division 
is usually retained by all authors, as being the most 
constant of all the divisions under the tarsal system : 
at the same time it must be remembered that certain 
heteromerous species (with the tarsi 5-5-4-jointed) are 
found in the other groups. 
(As I do not wish to make Mr. Rye at all responsible for the 
classification here adopted, I prefer to quote his arrangement. 
After noticing the fact that there are numerous species in the 
Pentamera not possessiug five joints to all the tarsi, and the 
presence of an extra minute joint iu the Tetramera and Tri- 
mera, he proceeds as follows (First Edition, p. 42) : — 
“ Nevertheless, nearly every one of the species in the arrange- 
ment followed in this work, from Cicindela to Octotemnus, will 
be found to he pentamerous ; 1 the Heteromerous section is 
preserved ; the species of the Rhyncliophora, Longicornes, and 
Eupoda answer to the Tetramera, and the remainder constitute 
the Pseud otrimera of Westwood, equivalent to the three- 
jointed beetles above mentioned. 
“ It will be seen, then, that our Coleoptera are divided into 
1 This can hardly be allowed ; the chief sub-family of the 
Stapliylinidce, for instance, the Aleoeharince, is now divided 
almost entirely on the difference in the number of the tarsal 
joints. 
