382 PHYTOPHAGA. [ Crepidodera. 
C. nitidula, L. (Chalcoides nitidula, Foudr.), Oblong-ovate, rather 
convex, shining ; head and thorax golden green or coppery, elytra nigro- 
cosruleous, violaceous, or greenish-blue; head with vertex very shining, 
scarcely punctured, antenne reddish-testaceous, fuscous towards apex ; 
thorax transverse, broadest before middle, rather thickly and distinctly 
punctured, with a strong transverse furrow at base bounded on each 
side by a longitudinal impression ; scutellum dark blue ; elytra at base 
a little broader than thorax, with shoulders marked, punctured in 
distinct and not very regular rows, with the interstices, especially the 
second, fourth, and sixth, furnished with rows of rather strong punctures; 
legs reddish-testaceous, posterior femora dark. L. 3-4; mm, 
On willows and aspens; rare; near London and Bristol (Stephens); Littlington, 
Cambridge, one specimen, September, 1863 (Power); Dover (C. G. Hall) ; Devon 
(Parfitt); Knapps Wood, near Weston-on-the-Green, Oxfordshire (Matthews) ; 
Scotland, doubtful, the only record being ‘ Raehills, Rev. W. Little,” Murray’s Cat. 
Mr. Johnson records it from Armagh, but I have not seen the specimens. 
C. helxines, L. (Chalcoides helxines, Foudr.). Oblong-ovate, in 
shape much resembling the preceding, but easily distinguished, apart 
from its colour, by the stronger punctuation and the almost smooth 
interstices of the elytra; the colour is variable, being usually coppery 
red or zneous green, with the head and thorax, as a rule, almost uni- 
colorous with elytra; occasionally the upper surface is cceruleous or 
cyaneous, but this variety is very rare ; it is the Chrysomela cyanea of 
Marsham ; head very finely punctured, antenne entirely reddish-testa- 
ceous or gradually and slightly infuscate towards apex ; thorax strongly 
punctured, almost twice as broad as long, broadest before middle, with 
a strong transverse furrow and longitudinal impressions at base; 
elytra with rows of strong and deep punctures, interstices very finely 
punctured ; legs reddish-testaceous, posterior femora dark, L. 3-3} 
mm. 
On willows, sallows, and poplars; generally distributed and common in the London 
and South-eastern, and probably the whole southern districts of England; somewhat 
local in the Midlands; Swansea; Lincoln; Manchester district, general; Bold says 
that although stated to be very common in the Northumberland and Durham district 
on willows, yet he has never seen a local specimen, and Dr. Sharp records it with 
doubt from the Solway, Tweed, Forth, and Clyde districts of Scotland, and remarks 
that he has never seen a Scotch specimen of the sub-genus Chalcoides except C. 
smaragdina, to which insect, probably, the C. helwines of Murray’s catalogue ought 
to be referred; Ireland, Dublin and Belfast. Weise (l.c. p. 717) regards C. cyanea, 
Marsh., as a distinct species. 
C. chloris, Foudr. This species is of a unicolorous greenish-golden 
coppery colour, the coppery colour usually prevailing over the other 
tints, and may easily be known from the allied species by its oblong, 
subparallel, and more elongate form, and by having the first four joints 
of the antenne of a bright reddish-yellow colour and the remainder 
black, the colour being sharply defined ; the rows of punctures on the 
elytra are finer than in the preceding species, L, 2-8 mm. 
