Mononychus.] RHYNCHOPHORA, 335 
where found ; Isle of Wight, Ventnor, &e. ; Curtis says that for the first specimen of 
this insect that he possessed he was indebted to Mrs. Griffiths, of Torquay, Devon, 
but I have not heard of its capture in that county of late years. 
C@LIODES, Schonherr. 
About forty species are included in this genus, which are widely dis- 
tributed ; sixteen or seventeen, occur in Europe and the remainder have 
been deseribed from Algeria, South Africa, Siberia, Persia, and North 
and South America ; they have been divided into several further sub- 
genera (Stenocarus, Allodactylus, Cidnorrhinus, &c.), by Thomson, Weise 
and Leconte ; they may be known by having the pectoral furrow econ- 
tinued on to the metasternum and the mesosternum plainly foveolate ; the 
thorax is usually constricted at. apex, and the femora, as a rule, are 
armed with a tooth beneath ; the form is short and broad ; the colour is 
variable, and the underside is more or less thickly clothed with whitish 
or yellowish-grey seales. 
I. Elytra without warty tubercles on interstices, 
except occasionally at sides and apex. 
i. Posterior femora simple or obsoletely toothed ; 
pectoral furrow continued to apex of meta- 
sternum ; colour red, reddish-brown or yellowish- 
red, (Megacetes, Thoms., Nedyus, auct. pars.) 
1. Thorax without or with a very indistinct pro- 
jection in middle of sides; posterior femora 
simple or at most furnished with a small 
brush-like tuft of hairs on their underside, 
rostrum more or less infuscate. 
A. Elytra red, without transverse waved 
bands, interstices convex and shining, 
with one regular row of pale hairs on each ; 
rostrum) entirely dark; (5 2s» . . . G RUBICUNDUS, Herbst. 
B. Elytra reddish-brown, with transverse 
waved bands; interstices flat, with pale 
hairs or scales set closely in at least double 
rows. 
a. Rostrum entirely dark; suture of elytra 
dark for its whole length; striz of elytra 
COATEG 0% Fs is ss ss w . 6C, QUERCUS, 7. 
(dryados, Gmel.) 
b. Rostrum red at apex ; suture of elytra in 
part clothed with whitish scales ; strice of 
BI DRA ee ie. oc dese oe Bal ee RUBER, Marsh. 
2. Thorax with an angular projection in middle 
of sides ; male with the second ventral seg- 
ment of abdomen furnished with a very dis- 
tinct round fovea; posterior femora obsoletely 
toothed ;srostrumned sa. 4 2. . a... ._ ERYTHROLEUCUS, Gmel. 
(subrufus, Herbst. ) 
ii. Posterior femora armed with a strong sharp 
tooth; colour dark, dull. 
1, Pectoral channel deepest behind the inter- 
mediate coxz and there ceasing, not reaching 
the middle of the metasternum which is almost 
