257 
The blue colour of the elytra, together with the very distinct 
puncturation of the elytra and the unusual width of the longi- 
tudinal depressed space on the prosternum, readily distinguish 
this species. 
Australia; taken by Mr. Koebele; the exact locality not 
known. 
me dorsalis, Blackp. (Er, Roy. Soc:, S.A., 1892, p. (0), Hor 
“(the puncturation is strong on the elytra, but) considerably 
less fine on the prothorax” read “. . . . considerably less 
so on the prothorax.” 
ft. plebeius, sp. nov. EHlongato-ovalis ; sat convexus ; setis fulvis 
sat brevibus erectis minus sparsim vestitus; rufo-piceus, 
antennis pedibus et epipleuris dilutioribus; capite protho- 
raceque vix manifeste, elytris sat crebre sat fortiter punctu- 
latis; prothorace quam longiori fere duplo (postice quam 
antice haud multo) latiori, lateribus vix arcuatis, angulis 
anticis rotundatis haud productis posticis rectis; corpore 
subtus sat crebre minus subtiliter punctulato; prosterno 
medio zequaliter convexo nec planato nec carinato. Long., 
# 1.3; lat.,.2 1. 
Easily distinguished from the other described species having 
the prosternum similarly formed by its obscure dark-red colour 
and comparatively coarsely punctured elytra. 
N.S. Wales and Queensland ; taken by Mr. Koebele. 
Since I furnished the Royal Society (in 1888) with a tabular 
statement of the distinctive characters of the Australian species 
of Lhizobius, so many additional species have been described in 
the first group of the genus (which I called “‘A”) that a new 
tabulation seems to be called for, as follows—|In the case of 
hk. Evansi, Muls., and R. discolor, Er., and also of A. hirtellus, 
Crotch, and &. ruficollis, Blackb., I am unable (for want in each 
case of a reliable type of one of the species) to set down a clearly 
intelligible record of a distinctive character ; but in each case I 
believe that the species bracketed together are distinct znter se. | 
RHIZOBIUS. 
A. Median space of prosternum longi- 
tudinally flattened, and with a fine 
carina on either side. 
B. Males distinguished by two large 
foveze on the apical ventral seg- 
ment. 
C. Form oval. 
D. Suture of the general colour. 
EK. Lateral margins of general colour, 
apex of elytra sanguineous. 
