348 EHYNCHOPHORA. \Ceutlwrrliynchu8, 



On Erysimwnandi other Cruciferce ; common and generally distributed throughout 

 the kingdom. 



The v. cliloropterus, 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 C. erysimi are 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 striae of the elytra are coarser and the 

 interstices are narrower ; the fovea of the last segment in the male is 

 also smaller. L. 1-1 5 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 Cruciferce ; very common and generally distributed throughout tb 

 whole kingdom ; by far the commonest of the smaller species. 



C. cyanipennis, Germ, (sulcicolhs, Payk; nee Gyll.). Oblong, 

 ovate or subovate, upper surface depressed, without scales, underside 

 with sparing white scales, black, with the abdomen somewhat aeneous, 

 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 stria?, interstices flat, 

 rugose, with single rows of fine hairs ; legs rather long and moderately 

 stout, femora toothed. L. 2-2 \ mm. 



Male with the posterior tibiae armed with a strong hook, and the last 

 segment of the abdomen impressed in middle. 



Ou Sisymbrium officinale, Ery.timum alliaria, Capsella bursa-pastoris, &c. ; local, 

 but common where it occurs ; London district, Kent and Surrey not uncommon, Cater- 

 ham, Shirley, Esher, Norwood, Hammersmith, West Wickham, Chatham, Sheerness, 

 Dartf ord, 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, 

 Gilslaud, Hettou 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 

 G. assimilis ; it resembles C. erysimi 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. chalybseus, Germ, (cterulescens, Gyll.). Smaller and more con- 

 vex than 'the preceding, and easily distinguished by its general shape 

 and the broader stride 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 



