290 PHYTOPHAGA, [ Cryptocephalus. 
on Cannock Chase, but this is the only locality that has been recorded outside the 
London district. 
C. sexpunctatus, L. Black, shining, with the base of the 
antenne and, as a rule, the inner side of the anterior tibiz ferruginous, 
and the forehead, anterior cox, and the femora at apex, marked with 
white ; thorax very variable, black with yellow markings or yellow 
with black markings ; elytra yellow with three large black spots on 
each, one at shoulder, one in a line with this near suture, and one 
behind ; these, however, are very variable, and sometimes two only are 
present, and occasionally the posterior one is divided, so that there are 
four ; the differences of colour in the thorax appear to be, to a certain 
extent, sexual; head rather strongly punctured, impressed; thorax 
short, finely, and not very closely, punctured; elytra confusedly and 
rather strongly punctured, the punctures being irregular. L. 43-65 mm. 
Male with the fifth segment very large, broadly excavated, with the 
excavation in the middle divided in two by a transverse rugosity, 
armed at each side with a hooked spine. 
Female with the pygidium furnished with two distinct tubercles. 
On young hazels and birches in woods, in June, rare; Darenth Wood; Cobham; 
Hollington, Hastings ; Lords Wood, Southampton (in some numbers 1887, Sharp 
and Gorham) ; Scotland, very rare, on hazels, Solway district ; found in two or three 
places in Dumfriesshire. 
C. bipunctatus, L.; v. lineola, F. = v. sanguinolentus, Scop. Black, 
shining, with the elytra very variable in colour, but in the British 
specimens apparently confined to one variety, which has the elytra 
orange or reddish-orange with a broad longitudinal black stripe on each, 
which is more or less variable in breadth; head rather thickly 
punctured ; antenne long, with the first five joints reddish or reddish- 
brown, at all events on the under-side; thorax smooth and shining, 
extremely finely punctured, the punctures being only visible under a high 
magnifying power ; elytra with the rows of punctures variable, stronger 
and more regular in some specimens than in others, but usually more or 
less irregular, interstices flat; in punctuation, however, this and the 
next species form a sort of connecting link between those that precede 
and those that follow ; the scutellum, margins and suture of elytra, and 
legs appear to be always black. 4. 4-6 mm. 
Male with the fifth ventral segment indistinctly impressed, the 
impression being nearly smooth. 
On young birches, hazels, oaks, willows, &c.; in woods, June; very local, and not 
common; Darenth and Birch Woods, Chatham, Cobham, Headley Lane (Esher) ; 
Folkestone ; New Forest ; Portsmouth district ; Bournemouth ; South Wales, Swan- 
sea, &c.; Chartley Moss and Burnt Wood, Staffordshire ; Trench Woods ; Yorkshire ; 
Northumberland and Durham district, rare; Scotland, very rare, Tay and Forth 
districts (the latter record is somewhat doubtful). 
C. biguttatus, Scop. (bipustulatus, F.). Very closely allied 
to the preceding, but with the elytra more strongly punctured, and the 
