Ceuthorrhynchidius. | RHYNCHOPHORA. 365 
Mr. Rye in company with C. marginatus at Dover; Mr. Rye was strongly of opinion 
that they are nothing but a variety of C. marginatus (v. Ent. Monthly Mag. VI. 
229). 
C. quercicola, Payk. (versicolor, Bris. ; uniguttatus, Marsh.). A 
small and rather conspicuous species; black, upper surface depressed, 
underside thickly clothed with whitish scales, upper surface with 
variegated grey and dark scales, the latter sometimes having a slight 
violet reflection ; at the base of the suture of the elytra there is a con- 
spicuous oblong white patch, situated on the two sutural interstices ; 
thorax not strongly constricted before apex, with the disc depressed, 
plainly channelled at base, closely punctured, with lateral tubercles, 
basal margin almost straight; elytra with rather fine punctured strie, 
interstices moderately broad, apex slightly muricate, legs black. L. 
3_2 mm. 
By sweeping herbage; occasionally found in moss; locally rather common, but 
apparently never abundant; Mickleham, Darenth, Haslemere, Cobham, Belvedere, 
Chatham, Faversham, Cowley, Crohamhurst, Bearsted ; Brighton; Exeter (on horse 
radish, very rare (Parfitt) ); Foremark, near Repton; Old Trafford, Manchester, 
rare ; Northumberland and Durham district, rare, Heaton and Little Benton; Holy 
Island; Scotland, rare, Forth district ; Balmuto, Fifeshire (Power). 
The var. Crotcht (C. Crotchi, Bris.) differs from the type form by 
its more depressed thorax, of which the anterior margin is less reflexed, 
and by its testaceous tarsi, of which the claws are smaller. I do not 
know of any localities for this variety, which was described by M. Ch. 
Brisout from England only. 
C. mixtus, Muls. (nigroterminatus, Woll.). Short and broad, 
black, scantily covered on the upper surface with white scales, which 
are thicker on an obscure patch at seutellum ; the hinder margin also 
of the elytra is more or less densely clothed with white scales ; ocea- 
sionally the scutellary patch is very obsolete or absent; thorax without, 
or with very obsolete, lateral tubercles, anterior margin raised; elytra 
short, subquadrate and narrowed behind, interstices rugose ; antenna 
dark ; legs black, tarsi yellow red, last joint black at apex, femora 
toothed ; the species may be known by its short form and abbreviated 
elytra; C. mixtus is characterized by M. Bedel as having no special 
raised tubercle at sides, and no spot at scutellum, and he allows 
that the identity of this species with Wollaston’s nigro-terminatus 
needs confirmation ; they appear, however, to belong to one species. 
L, 2-25 mm. 
Very rare; Gainsborough (one specimen, Crotch); one specimen in Dr. Power’s 
collection, without locality, labelled ‘‘mzatus, Muls.’’; the species seems to require 
some further confirmation as British. 
C. troglodytes, F. (spiniger, Herbst.). Lighter or darker reddish 
brown, rather shining, moderately convex, underside comparatively 
scantily clothed with greyish scales, thorax with three more or less 
