348 RHYNCHOPHORA. [ Ceuthorrhynchus. 
On Erysimum and other Crucifere ; common and generally distributed throughout 
the kingdom. 
The v. chloropterus, Steph., is more brassy, with the elytra brassy 
green and more feebly striated: it appears to be generally distributed. 
C. contractus, Marsh. Smaller than the preceding, which it 
resembles, but easily distinguished by its colour which is black, with 
the elytra bluish-black or greenish-black, slightly metallic; the head and 
thorax in OC. erysimi ave distinctly brassy but in this species are dull 
black or only slightly shining ; the punctures of the thorax are closer 
and finer and those of the strie of the elytra are coarser and the 
interstices are narrower; the fovea of the last segment in the male is 
also smaller. L. 1-13 mm. 
V. pallipes, Crotch. This variety has the legs quite pale, and the 
elytra greener and more metallic ; it has only occurred on Lundy Island, 
where it was found by Mr. Wollaston. 
On various Crucifere ; very common and generally distributed throughout th 
whole kingdom ; by far the commonest of the smaller species. 
C. cyanipennis, Germ. (sulcicollis, Payk; nec Gyll.), Oblong: 
ovate or subovate, upper surface depressed, without scales, underside 
with sparing white scales, black, with the abdomen somewhat eneous, 
and the elytra bright metallic “blue; head closely punctured, rostrum 
long ; thorax strongly constricted at apex, strongly and deeply punctured, 
with a distinct central channel and a lateral tubercle on each side; elytra 
with comparatively narrow and fine punctured striz, interstices flat, 
rugose, with single rows of fine hairs ; legs rather long and moderately 
stout, femora toothed. L. 2-25 mm. 
Male with the posterior tibiz armed with a strong hook, and the last 
segment of the abdomen impressed in middle. 
On Sisymbrium officinale, Erysimum alliaria, Capsella bursa-pastoris, &e.; local, 
but common where it occurs ; London district, Kent and Surrey not uncommon, Cater- 
ham, Shirley, Esher, Norwood, Hammersmith, West Wickham, Chatham, Sheerness, 
Dartford, Maidstone; Dover; Folkestone ; Hastings; Isle of Wight, Ventnor, 
cliffs on west of town, not uncommon; Leicester; Findern, near Repton; Llangollen; 
Heysham, Lancaster ; Stretford, Manchester ; Northumberland and Durham district, 
Gilsland, Hetton Hall, near Belford, and Gosforth ; Scotland, scarce, Solway, Tweed 
and Moray districts; not recorded from Ireland but it probably occurs. 
This species is of about the size, shape and general external form of 
CG. assimilis ; it resembles C. erysimt in colour and in the sculpture of 
the thorax, but is larger and is easily known by the sculpture of the elytra 
and the toothed femora. 
C. chalybzeus, Germ. (cerulescens, Gyll.). Smaller and more con- 
vex than ‘the preceding, and easily distinguished by its general shape 
and the broader striz and narrower and more convex interstices of the 
elytra; black, with the underside rather thickly clothed with whitish 
scales, elytra deep blue; thorax with the anterior margin almost trun- 
cate and somewhat raised, deeply punctured, with a central channel 
