Corymbites. | SERRICORNIA. 115 
as thorax, scarcely widened behind middle, finely striated, interstices 
very finely punctured and transversely rugose; under-side black with 
metallic reflection; legs red. UL. 83-10 mm. 
Male with the antenne and thorax a little longer, and the latter a 
little less dilated at sides. 
By sweeping bracken, &c.; occasionally by beating sallows, &c., in woods; rare ; 
Darenth Wood, Ripley, Weybridge, Wimbledon, Loughton; New Forest; Somer- 
set; Swansea. 
Cc. impressus, F. (Diacanthus impressus, Latr.). A large and 
rather broad species, elytra depressed on disc, black with a very slight 
bronze reflection, clothed with rather sparing and somewhat uneven 
whitish pubescence; head thickly and coarsely punctured, impressed, 
antenne about as long as head and thorax, obtusely serrate from the 
fourth joint; thorax slightly longer than broad in male, quadrate and 
slightly dilated at sides in female, not thickly punctured on disc, but 
with the punctuation thick and rugose at sides; the central furrow is 
distinct, at all events at base, and behind the middle on each side of it 
there are two distinet round fovee; the posterior angles are projecting 
and carinate; scutellum large, closely punctured ; elytra broad, some- 
what broadest behind middle, with fine punctured stria, interstices 
distinetly punctured and transversely rugose ; legs black, occasionally 
pitchy, rarely ferruginous. L. 11-13 mm. 
On the Scotch fir, and on birch; in mountainous districts; local ; Northumber- 
land district, on the birch near Gilsland, rare (Bold) ; Scotland, Highlands, Tay, 
Dee, and Moray districts (Braemar, Aviemore, &c.) ; Ireland, Churchill, co, Armagh, 
one specimen on birch. 
Cc. bipustulatus, L. (Diacanthus bipustulatus, Latr.). The 
smallest of our species; black, shining, very sparingly pubescent, each 
elytron with a distinct reddish-yellow spot at base, elytra sometimes 
entirely reddish-testaceous ; head coarsely punctured, antenne ferrugi- 
nous, rather short, feebly serrate from the fourth joint ; thorax about as 
long as broad, rather strongly convex, with sides rounded and con- 
tracted in front, posterior angles projecting and divaricate but rather 
short and not carinate ; upper surface finely and not closely punctured; 
scutellum large, orbicular; elytra with sides rounded and somewhat 
dilated behind middle, where they are broadest, with distinct punctured 
strie, interstices sparingly punctured; legs pitehy brown or reddish 
with femora darker, L. 6-7 mm. 
In decaying willow, &c.; also by sweeping; rare; Esher and Claygate; Wrab- 
ness, Essex ; Tonbridge; Abbots Wood ; Sandwich; Hastings; New Forest; Glan- 
villes Wootton ; Killerton Park, Exeter ; Norfolk ; Bagley Wood, Oxon; Sherwood 
Forest (Turner). 
The pale variety of this species may be at once known from the 
v. ochropterus of C. quercus by its shorter, less parallel-sided, and less 
closely punctured thorax, and the more rounded sides of elytra, as well 
as by the shorter antenne, and the fact that the posterior angles of the 
thorax are not carinate. 
Lea 
