Longicornia of South Africa, Se. 287 
terminal spine of the posterior tibie is very minute ; in other respects 
it does not differ generically from P. Gueinziz, White, the type of the 
genus. In this subfamily (Callichromine) is to be placed the remark- 
able short-winged genus Colobus, Serv.; but as this name had been 
employed many years before for a genus of monkeys, I propose 
Nothopeus as a substitute. 
AXystrocera erosa. 
X. obscure viridi-metallica; prothorace latitudine elytrorum, disco semi- 
circulariter eroso-impresso; elytris singulis apice rotundatis. 
Hab. Natal. 
Dull metallic green; head much narrower than the prothorax, brown, 
closely punctured ; antenne brown, the proximal joints roughly punc- 
tured, unarmed; prothorax finely punctured, depressed, as broad as the 
elytra, and about equal in length and breadth, the sides rounded; the 
disk with an impressed medio-longitudinal line, which begins from a 
pubescent triangular impression forming part of the anterior marginal 
groove, and intersected posteriorly by a large crescent-shaped mark, 
with the concavity forwards, having the appearance as of the derm 
having been gnawed away, at the side a smaller mark, and beyond 
these two punctures, all having the same peculiar character; scutellum 
chestnut-brown, rounded behind, very concave in the middle; elytra 
with numerous small brownish granulations, each elytron with three 
longitudinal raised lines and a rounded apex; body beneath, except 
the propectus, glossy brown, legs darker. Length 10 lines. 
The above description is from a male, the only example of this 
remarkable insect that I have seen. Another species of the genus, 
also from Natal, and somewhat resembling the preceding, is much 
less robust in its proportions and paler in colour, with the prothorax 
transverse, very considerably narrower than the elytra, the medio- 
longitudinal line obsolete, and the disk of the normal character. It 
may be named Xystrocera juvenca*. 
Euporus ignicollis. 
E. cxruleo-chalybeatus; capite prothoraceque nitide cupreo-auratis. 
Hab. Natal. 
Light steel-blue, antennze darker; head and prothorax shining copper 
or golden red, the latter finely and remotely punctured, especially an- 
teriorly; scutellum narrowly triangular, acute; elytra rich blue, irre- 
* Jt may be diagnosed thus :— 
Aystrocera juvenca. 
X. obscure fulvo-viridis; prothorace transverso, vix depresso, linea longitudinali 
obsoleta. Long. 73 lines. 
