18 Mr. J. Walton on the genera 
Elytra oblong, with the shoulders rounded, convex above, pune- 
tate-striate, the interstices rather convex, minutely granulated ; 
the abdomen black, sparingly clothed with fine short hairs, but 
without scales. Legs moderate, pallid testaceous, pubescent ; 
femora clavate. Length 2—23 lines. 
This insect is dissimilar in its habits from the preceding ; it is 
generally less, more slender, the scales more brilliant, the hairs 
on the body paler, and the abdomen without scales ; the shape of 
the head is very different, being shorter and narrower at the base, 
the vertex transversely elevated and very distinctly carmated on 
both sides; the thorax also differs, but the above characters are 
sufficient to distinguish it from its congeners. 
In many cabinets, but referred to P. flavipes. 
Not very common, but occasionally found rather plentiful in 
woods on the birch, hazel, and other trees in June. 
5. Polydrosus sericeus, Schall., Gyll., Schonh. 
— splendidus, Herbst. 
— squamosus, Germ. 
— speciosus, Steph., Curt. 
I possess foreign specimens of this beautiful insect from Ger- 
mar, with the name “ Polydrosus sericeus of Schaller.” 
It was discovered by the Rev. G. T. Rudd in a wood near 
Kimpton, Hants, in June, and as far as I know, has not hitherto 
been found in any other locality ; it appears to be extremely local. 
§ B. Femora dentate. 
6. P. planifrons (De}. Cat.), Schonh. 
— argentatus, Oliv. 
Oblong, black, densely clothed throughout (except the tarsi 
and antennz) with rich green scales, the upper surface without 
hairs. Head rather large, subquadrate, closely punctulated, the 
frons more or less depressed, with a deep fovea in the middle ; 
rostrum a little shorter and narrower than the head, the apex 
triangularly emarginated. Antenne reaching to the base of the 
thorax, slender, the joints rufous or testaceous, with their apices 
piceous and the clava fuscous. Thorax short, transverse, a little 
narrowed and slightly constricted anteriorly, the sides moderately 
dilated and rounded, and nearly plane above. LElytra with the 
shoulders elevated, subrectangular, convex above, punctate-stri- 
ate, the interstices broad and flat, and transversely strigated. 
Legs rather stout ; the femora and tibie black, the former den- 
ticulated ; the tarsi rufous. Length 3 lines. 
There is a specimen of this sect in the cabinet of the British 
Museum, but I cannot learn where it was taken. I possess 
foreign examples from Chevrolat. 
