450 M. Louis Péringucy on descriptions of 
on each side five long raised lines, the outer two reaching from the 
base to about three-fourths of the length, the three discoidal ones 
somewhat shorter, apical part shagreened, intervals broadly foveate, 
the fovex with ‘a golden sheen, no supra-marginal white spot or 
band ; underside and legs very dark blue. Length, 17-19 ; width, 
43-6 mm. 
The nearest ally to this species is M. bertoloni; the 
shape of the prothorax is the same, but in M. mashuna 
the transverse folds are more raised and with a slightly 
broader interval, the costew of the elytra reach much 
nearer to the apex, and the alveolx on the disk are more 
regular, 
Hab, Mashunaland (Salisbury). 
M. marshalli, sp. n. 
/Enco-nigra, elytris weneis, subnitidis; capite strigoso, labro 
nigro, in medio albo-maculato ¢ ; prothorace subcylindrico, antice 
posticeque valde constricto, transverse plicato, vitta media albo- 
tomentosa ; elytris elongato-ovatis, utrinque quinque-costatis, costis 
post medium productis, interstitiis foveato-reticulatis, vitta basali 
alba in elytro singulo, plaga discoidali post medium posita vittaque 
postica supra-marginali albis. 
Black with a bronze tinge, elytra brassy, moderately shining, 
underside and legs black, with a bluish tinge; labrum black, 
with a broad median yellowish-white patch in the ¢; head 
very obliquely plicate between the eyes, and transversely so behind ; 
prothorax subcylindrical, only a little longer than broad, with 
the discoidal part somewhat raised on each side, narrowed in 
front and behind, transversely plicate, and with a median band 
of white hairs reaching from apex to base; elytra elongated, 
gradually ampliated from the base to about two-thirds of the 
length, ending in two sharp, long, sutural spines, convex, with 
five cost reaching from the base to two-thirds of the length, 
but the first and fifth longer than the three discoidal ones, inter- 
vals foveato-reticulate, apical part shagreened, on each side a white 
line running on the second costa from the base to about one-fourth 
of the length, a more or less sublunar or rounded patch of the same 
colour placed at the apex of the three discoidal raised lines, and a 
narrow, supra-marginal posterior band, extending from the same 
height as the discoidal patch to the apex. Length, 19; width, 
5 mm, 
I know the male only. The female will probably prove 
