48 
from the three previously described members of the same aggre- 
gate. C. acutangulus, ina natural arrangement, would stand 
near C. lepidus, Blackb., which differs from it inter alia in its 
eyes being still wider apart, its tarsal vestiture black, and the 
hind angles of its prothorax (viewed from above) much less pro- 
minent. 
Central Australia. 
C. mundus, sp. nov. Elongato-ovalis, subparallelus ; sat nitidus, 
capite prothorace que subopacis; niger, prothorace elytris 
que cupreo et viridi versicoloribus; capite equaliter 
subtilissime punctulato; oculis antennarum articuli basalis 
longitudine inter se remotis; sulcis ocularibus subfovei- 
formibus ; antennis fere ut C. acuwtanguli sed articulo 6° 
vix dilatatis; prothorace quam longiori (et postice quam 
antice) fere duplo latiori, subtiliter minus crebre punctulato, 
antice (superne viso) subtruncato, a basi antrorsum (superne 
viso) arcuatim angustato, basi media leviter lobata, angulis 
(superne visis) anticis obtusis posticis subacutis; elytris 
haud striatis, seriatim sat fortiter punctulatis (puncturis 
seriatis postice haud minus fortiter impressis), interstitiis 
planis vix perspicue punctulatis ; prosterno medio antice 
carinato ; corpore subtus vix punctulato, abdomine leviter 
rugato ; tarsis fulvo-setosis, posticorum articulo basali ceteris 
conjunctis parum breviori. lLong., 51.; lat., 241. 
Evidently allied to the preceding (C. acutangulus) but inter 
alia much smaller, with the interval between the eyes narrower, 
the elytral seriate punctures much larger, &c., &c. Also bears 
much superficial resemblance to several species which have dark 
tarsal vestiture or no ocular sulci. The continuance to the apex 
of the elytra (without enfeeblement) of the seriate ‘Ppunevian 
is a somewhat unusual character. 
This species and the preceding (C. acutangulus) do not fit any 
line to which a specific name is attached in my tabulation of 
Chalcopterus (P. L. S., N.S.W.,1893, pp. 56, &c.). They would 
stand under “CC” (on p. 69), but not under either “ D” or 
“DD” (the two sub-divisions of “CC”). Their place in the 
tabulation will be found set forth under the heading C. obtusus, 
Pasc., below. 
C. (Amarygmus) obtusus, Pasc. In my “ Revision of the 
Amarygmides” I stated (P. L.S., N.S.W., 1893, p. 54) that this 
species was one of four Chaleopteri which I had been unable to 
identify. I have since received from Mr. Lower an example from 
Queensland which agrees fairly well with Mr. Pascoe’s descrip- 
tion. The discrepancies are that the colour of the elytra should 
be wniformly brownish-copper, but is tinged with green along the 
