292 PHYTOPHAGA. [ Cryptocephalus. 
yéllowish-red, and the thorax extremely finely punctured, almost 
smooth; there is a yellow spot on the forehead, and the angles of the 
thorax are very narrowly, often almost imperceptibly yellowish ; the 
elytra are less closely and rather strongly punctured in more or less 
irregular rows; the colour is golden or bluish-green or blue above and 
black beneath, but the upper surface does not present the frosted 
appearance so characteristic of the two preceding species, L. 33-5 mm. 
According to Thomson the male only has the angles of the thorax and 
the anterior margin narrowly yellow, and in this sex the legs are black 
with the anterior femora and the under-side of the anterior tibize 
yellowish ; in the female the anterior legs are yellow with the femora 
black on their upper side, and the posterior black with the tibie yel- 
lowish on their inner side; the colour of the legs, however, appears to 
be variable in specimens of the same sex, and the posterior tibiz# appear 
to be often quite black. 
On young birch and hazel, in woods, in June; very local, although it sometimes 
occurs in some numbers where found; Darenth Wood, Headley Lane, Cobham, 
Mickleham; the only locality that has been recorded, apparently, outside the London 
district is ‘* Devon”’ (Steph. Manual, 2397), which may be in error, as it has never 
been found in the county since. 
Cc. punctiger, Payk. Black or blue-black, shining, with the base of 
the antennz, the mouth parts, a bifid spot on forehead, and the anterior 
legs (except the outer side of the femora, and rarely of tib @) reddish- 
yellow ; the prosternum, also, is more or less yellow ; head finely punc- 
tured, thorax rather sparingly punctured, more distinctly in the males 
than in the females ; elytra cyaneous, sometimes greenish-blue, with 
strong and deep rows of punctures ; the general form is more elongate 
and narrower than in C. parvulus (fulcratus), which is its nearest ally 
among the British species; from this species, however, it may at 
onee be known by the more or less red anterior pairs of legs. L. 
21-3} mm, 
Male with the frontal spot larger, the anterior margin of thorax 
yellow, and the intermediate femora and tibiz nigro-fuscous on their 
upper side. 
Female with the posterior angles and the anterior margin of thorax 
usually very narrowly yellow. 
On young birches, hazels, sallows, &e.; in woods; not common; Leeand Darenth 
Wood (Waterhouse, Champion, &e.} ; Llangollen (Reston) ; Cannock Chase, on birch, 
local (Blatch); Burnt Wood, Staffordshire (Chappell). 
C. parvulus, Mill. (nigroceruleus, Goeze; flavilabris, F., nec Suffr. ; 
fulcratus, Germ.). Of a bright blue or greenish-cyaneous colour, with 
the antenne dark, basal joints, at least on under-side, testaceous, mouth 
parts yellow ; head closely punctured ; thorax more strongly punctured 
in the males than in the females, and more closely at sides than on dise, 
impressed at sides of disc, and more strongly in middle of base; elytra 
