Cryptocephalus. } PHYTOPHAGA. 295 
the apex testaceous; this is the v. Marshami, Weise (C. marginellus, 
Marsh.); but the insect presents every shade of variation between this 
and being entirely fulvous, with the under-side and apex of antenne 
black ; the species may be known from C. minutus by having the strie 
almost effaced for posterior third, and the fact that the prosternum 
has a long and sharp labial process ; in the male the antenne are as long 
as the body, and the first joint of the anterior tarsi is strongly dilated 
and half as long again as the third ; in the female these joints are nearly 
equal, L. 2-3 mm. 
On young birches, &c., in woods; also by sweeping heath; local, but rather 
common in severai localities; Ashtead, Shirley, Weybridge, Forest Hill, Dorking, 
Cobham, Darenth Wood, Chatham, West Wickham, Southend; Hastings ; Bourne- 
mouth ; Glanvilles Wootton ; Devon ; Knowle; Needwood ; Bretby, near Repton ; 
Sherwood; Chat Moss, Staffordshire ; it has not been recorded from further north. 
C. labiatus, L. Black, shining, with the base of the antenne, the 
face and mouth parts below the antenne, and the anterior legs, except 
the femora, and more or less of the posterior pairs, yellow; thorax short, 
very smooth and shining, scareely visibly punctured ; elytra with strong 
rows of punctures, which are much finer behind middle, and are almost 
effaced for posterior third, prosternum with a central keel which is 
raised in front and with the prosternal process slightly emarginate. 
L. 2-3 mm. 
Male with the antenne longer and the anterior tarsi with the first 
joint dilated and longer than the third. 
On young birches, hazels, oaks, &c.; in woods and hedges; generally distributed 
and common throughout the greater part of England, and not uncommon in Scotland ; 
it is the commonest of our British species, and often occurs in abundance. 
C. querceti, Suffr. (geminus, Wat Cat.). Very like the preceding, 
but larger and rather longer, with the anterior legs entirely yellow, and 
the labial process of the prosternum much shorter ; as a rule the antenne 
are entirely yellow or pitchy yellow, but this is not always the case ; 
the intermediate and posterior legs are also yellow, the posterior femora 
being broadly black on their outer side ; the first joint of the anterior 
tarsi is elongate and only moderately dilated in the male, triangular in 
the female. L. 3-38} mm. 
On oaks and birches; very rare ; as far as I know it has only occurred in Sherwood 
Forest, where it has been taken by the Rev. A. Matthews, Mr. Blatch, and others ; 
the C. geminus of Waterhouse’s catalogue, which has been supposed to be this 
insect, has been recorded as taken in Devonshire on the barberry. 
Cc. exivruus, Schneid. (Wasastjerne, Gyll.). This is the smallest of 
the Britis: species; superficially it much resembles C. labiatus, from 
wh ch it may .e known by having the thorax closely covered with 
small and very fine stria, which are, however, by no means as pro- 
nounced as in C. bilineatus, and require a considerable magnifying 
power to show them distinctly; the punctured strie of the elytra also 
