Notes on Australian Coleoptera. 167 
Promecoderus Pygmcus: length 32’; elongate, of a brilliant 
copper colour ; head with two strong rounded impressions in 
front, and a transverse one behind the eyes ; thorax nearly 
‘as long as broad, oval, truncated in front, having a faint 
longitudinal sulcate in the middle, and _ transverse 
impressions in front and behind; elytra long, striated, 
with a few deep impressions on the posterior part of the 
“margin ; lower side of the body of a brilliant copper colour ; 
legs, tarsi, buccal: parts, and the three basal articles of the 
antennee of a dark brown; the remaining part of the 
antennee black and hirsute ; the thighs black. 
From the mountains of Victoria. 
Promecoderus Mimutus: length 4°; very much like 
Pygmeeus, but broader; thorax more globular, elytra 
much more,oval, parts of the mouth, antenne and legs of a 
light brown, middle of the thighs black; the lateral im- 
pressions of the elytra generally faint ; the general colour 
seems to be subject to considerable variations, from light 
copper colour to nearly black. 
Swan River. 
Promecoderus Nigricornis: length 7’; black, brilliant ; 
head and thorax of a dark copper colour; head smooth, 
with two punctures in front, and a very faint transverse 
impression behind the eyes; thorax cordiform, convexed, 
impressed transversally in front and behind with a deep 
longitudinal sulcate in the middle; on the sides of the 
sulcate are faint transverse striole; elytra oval, convex 
covered with faint longitudinal striz ; their posterior part is 
rather corrugated; their margin has no punctiform im- 
pressions, but a short longitudinal sulcate ; the palpi are 
brown ; the antennez black, with the external base of the 
first three articles of a rather dark brown ; the tarsi have 
some long brown hair ; palpi of a dark brown. 
Mountains of Victoria. 
Promecoderus Maritimus: length 6%’; of a brilliant 
black ; head large, with several very faint irrecular im- 
pressions in front and between the eyes; a feeble trans- 
verse impression behind these organs; thorax oblong, 
globular, sub-cordiform, with feeble transverse impressions 
in front and behind, and a longitudinal sulcate in the 
middle; elytra oval, oblong, convex, covered with rather 
faint punctated strie ; the posterior part of the margin has 
a few faint punctiform impressions, and a short longitudinal 
suleate ; some brown hair on the tarsi; antennze black, with 
