oe Mr. F. P. Pascoe on some new or little-known 
Erythrus? Bowringii. 
E.? angustatus, rubro-sericeus ; prothorace ovato, medio carinato ; elytris 
elongatis, apice truncatis ; corpore infra nigro, griseo-pubescente. 
Hab. Hong Kong. 
Narrow and elongate, brick-red, covered with a fine silky pubes- 
cence; head roughly punctured, the muzzle rather short; antennze 
black, longer than the body in the male, about three-quarters of its 
length in the female, the serration beginning with the fourth joint ; 
prothorax ovate, a long linear carina in the middle, two black spots 
anteriorly on the disk, marking the nearly obsolete tubercles ; scutellum 
triangular ; elytra elongate, scarcely wider than the prothorax, the sides 
incurved and expanding very slightly posteriorly, the apex truncate, a 
broadly elevated line extending from the shoulder to near the apex ; 
body beneath black, closely covered with a short greyish-white pubes- 
cence; legs black, slightly pubescent, femora of the intermediate pair 
produced beneath, and fringed at the deepest part of the border with 
short stiff hairs. Length (¢) 9, (2) 11 lines. 
This species rather breaks in upon the homogeneity of Hrythrus, 
but I scarcely see sufficient characters to warrant its separation as a 
distinct genus. The narrow form, the ovate prothorax, and the 
serrated portion of the antennze beginning at the fourth joint instead 
of the fifth, seem to be the most distinctive points. The muzzle is 
also somewhat shorter and the palpi longer, but I think it would be 
difficult to formulate a satisfactory diagnosis on these. The pecu- 
liarity of the intermediate femora is less marked in the female. I 
am indebted for this and the two preceding species, and indeed for 
many others, to John Bowring, Esq. 
Potyzonvs [Cerambycidee ]. 
Laporte de Castelnau, Hist. Nat. des Ins. Coléop. ii. p. 488. 
Polyzonus pubicollis. 
P. obseure niger; prothorace subcylindrico, aureo-pubescente ; elytris 
luteis, fasciis tribus, postica subapicali suturam non attingente, nigris. 
Hab, Natal. 
Dull black; head coarsely punctured, with a few scattered yellowish 
hairs; epistome very short, lip narrow, bordered with stiff yellowish 
hairs; prothorax short, subcylindrical, slightly narrowed behind, closely 
and coarsely punctured, and covered with a golden-yellow pile; scu- 
tellum acutely triangular; elytra very finely and closely punctured, 
sparsely pubescent, luteous yellow, a black band near the base, a second 
at the middle, and a third towards the apex, but which does not attain 
to the suture ; body beneath black, more or less covered with a silvery- 
grey pile, the last abdominal segment extending beyond the elytra ; 
legs black, more or less pubescent ; femora scarcely clavate, the posterior 
