268 
HORN EXPEDITION—COLEOPTERA. 
ISODDN. 
I. pecuarius, Reiche (2), Alice Springs. 
SBMANOPTERUS. 
S. rectangulus, Blackb. (4), Alice Springs, Idracowra. 
CHLOROBAPTA. 
C. frontalis, Don. (1), Illamurta. 
BUPRESTID^. 
CHALCOTiENIA. 
C. Beltance, Blackb. (7), Idracowra. A study of these specimens shows me that 
the previously unique type of C. Beltana is a female, and that the male ditl'ers from 
it in being of somewhat narrower and more parallel form with longer and more 
slender antennte, the joints of which (beyond the third joint) are more or less reddish ; 
and in there being a deep triangular emargination in the hind outline of its apical 
ventral segment. In both sexes the metasternum is longitudinally flattened (or 
slightly concave) down its middle space, with sparse, evenly-disposed, very incon¬ 
spicuous, fine, erect hairs, and bears a strongly-impressed longitudinal line down 
the centre. The middle part of the metasternum and of the basal ventral segment 
is strongly and rather closely punctulate; the sides of the metasternuin and hind 
coxie are closely and strongly but scarcely coarsely rugulose ; and the sides of the 
ventral segments are very closely and finely punctulate ; the basal ventral segment 
is evenly convex. In my description of this species (Proc. Linn. Soc. N.S.W., 
1894, p. 100), I remarked the shortness of the antennfe as inconsistent with a 
place in Chalcot(£nia ; but as this chai’acter appears to be sexual there is no reason 
to separate the species from Chalcotcenia, and moreover there seems to be an error 
in regarding the length of the antennaj as a generic character of Chalcotcenia. The 
female differs in its apical ventral segment being scarcely notched at the apex’ 
The small size of this species (which does not vary in the specimens before me) 
distinguishes it from all its described Australian congeners except exilis, Blackb., 
which is considerably smaller still. 
C. cerata, Kerremans ? (2), Stevenson Creek. The two examples which I 
refer to this species agree very well with M. Kerremans’ description, but unfortu¬ 
nately tliat description (no doubt from want of material) omits all reference to the 
