BY THE REV. T. BLACKBURN. 
1421 
protlioi’ax is visible from above (that is on both sides from one 
point of view) outside the external keel of the hind angle to 
within a hairsbreadth almost of its hind apex, — while in juvenis 
from a similar point of view, it seems to disappear under the 
external keel considerably before its hind apex. 
Northern Territory of S. Australia; in my collection ; also taken 
by Mr. J. P. Tepper ; also by Prof. Tate. 
M. Palmerstoni, sp.nov. 
Fusco-ferrugineus ; pedibus flavis, capite antice scutello pro- 
thoracisc|ue angulis posticis rufescentibus ; minus nitidus ; sat 
elongatus ; pube longiore sat dense vestitus ; prothorace hand 
canaliculate, trans angulos posticos quam longitudine in medio 
vix latioi’i, a basi parum angustato, subtilius crebre subrugulose 
punctulato, angulis posticis bicarinatis vix divaricatis ; elytris 
prothorace angustioribus a basi attenuatis, apice rotundatis, 
fortius punctulato-striatis, interstitiis sat planis leviter minus 
confertim punctulatis ; j)rothoracis mai-gine laterali antice in 
jjrosternum subducto ; tarsorum articuli quarti lamella minus 
lata. [Long. 3f, lat. li lines (vix). 
The narrower lamella on the 4th joint of the tarsi would 
perhaps j)lace this species in the last division of M. Candeze’s 
►Section iii., in which case its place in that section would be 
beside M. Jictus, from which the absence of a longitudinal carina 
on the head will at once distinguish it. In M. Candeze’s subdivision 
of the earlier division it would fall side by side with the preceiling 
two species and the two others already mentioned. From the 
latter two it differs as M. Tepperi does. From M. Tepperi (its 
neare.st real ally, 1 think) it differs by its very small size, somewhat 
dilferent coloration, less robust build, closer and slightly rugose; 
prothoracic punctu ration, lateral margins of prothorax posteriorly 
hidden by the external keel (as in M. juvenis), and apex of elytra 
not at all cinarginate (this latter may i>ossibly not be a constant 
cliaracter). 
Northern Territory of S. Australia ; taken by Mr. J. P. Tepjjcr. 
