J92 FHYTOPHAGA. 



yellowish-red, and tho thorax extremely finely punctured, almost 

 smooth ; there is a yellow spot on the forehead, and the angles of the 

 thorax are very narrowly, often almost imperceptibly yellowish ; the 

 elytra are less closely and rather strongly punctured in more or less 

 irregular rows; the colour is golden or bluish-green or blue above and 

 black beneath, but the upper surface does not present the frosted 

 appearance so characteristic of the two preceding species. L. 3^5 mm. 

 According to Thomson the male only has the angles of the thorax and 

 the anterior margin narrowly yellow, and in this sex the legs are black 

 with the anterior femora and the under-side of the anterior tibiae 

 yellowish ; in the female the anterior legs are yellow with the femora 

 black on their upper side, and the posterior black with the tibiae yel- 

 lowish on their inner side ; the colour of the legs, however, appe.irs to 

 be variable in specimens of the same sex, and the posterior tibiao appear 

 to be often quite black. 



On young birch and hazel, in woods, in June; very local, although it sometimes 

 occurs iu some numbers where found ; Darenth Wood, Hendley Lane, Cobhain, 

 .Mickleham; the only locality that has been recorded, apparently, outside the London 

 district is " Devon" (Steph. Manual, 2397), which may be in error, as it has never 

 been found iu the county since. 



C. punctigrer, Payk. Black or blue-black, shining, with the base of 

 the antennae, the mouth parts, a bifid spot on forehead, and the anterior 

 legs (except the outer side of the femora, and rarely of tibiae) reddish- 

 yellow ; the prostermim, also, is more or less yellow ; head finely punc- 

 tured, thorax rather sparingly punctured, more distinctly in the males 

 than in the females ; elytra cyaneous, sometimes greenish-blue, with 

 strong and deep rows of punctures ; the general form is more elongate 

 and narrower than in C. parvulus (fulcratus), which is its nearest ally 

 among the British species ; from this species, however, it may at 

 once be known by the more or less red anterior pairs of legs. L. 

 2-v-3 mm. 



Male with the frontal spot larger, the anterior margin of thorax 

 yellow, and the intermediate femora and tibiae nigro-fuscous on their 

 upper side. 



Female with the posterior angles and the anterior margin of thorax 

 \isually very narrowly yellow. 



On young birches, hazels, sallows, &c. ; in woods ; not common ; Lee and Darenth 

 Wood(Waterhouse, Champion, &c. ) ; Llangollcn (Reston) ; Cannock Chase, out birch, 

 local (Blatch); Burut Wood, Staffordshire (Chappell). 



C. parvuluB, Mull, (nigrocoeruleiis, Goeze; flavildbris, F., nee Suffr. ; 

 fulcratus, Germ.). Of a bright blue or greenish-cyaneous colour, with 

 the antennae dark, basal joints, at least on under-side, testaceous, mouth 

 parts yellow ; head closely punctured ; thorax more strongly punctured 

 in the males than in the females, and more closely at sides than on disc, 

 impressed at sides of disc, and more strongly in middle of base ; elytra 



