440 Suarp—On New Zealand Coleoptera. 
to base, being very slender in front, but dilated on each side at the basal margin. 
The scutellum is impunctate; the elytra are equally covered with large punctures, 
the colour of the punctures being chocolate-red, and along each wing-case there 
are two or three feeble longitudinal pallid veins. 
Greymouth, Helms, No. 127. O. pallidus, Broun, Man., p. 576, is, I have little doubt, this spe- 
cies. This insect was sent me some years ago, having been captured, I believe, at Maori Creek, by 
Mr. Lins: and the two examples were sent as being one species, though there appears to be no direct 
evidence of this beyond the general resemblance between the two: I myself likewise think them one 
species, though the prothoracic differences are so marked and extreme that they are almost what would 
be considered of generic importance amongst the allies; and also in the supposed female the longitu- 
dinal veins on the wing-cases are not present; it is therefore possible that the supposititious female may 
not really belong to the species. The genus was established by White, on a single male, closely allied to 
that which I have described, but considerably larger, and with differences in the prothoracic sculpture ; it 
has since remained unknown to entomologists, its position being somewhat uncertain. Lacordaire is quite 
in error in supposing (Gen. Col. vm., p. 878) that the eyes present the remarkable form they do in the 
genus Bardistus: that he should have made this mistake is curious, as White gives a figure of the side 
of the head and eye, which is approximately correct. This at present is all the information I can give 
about the genus, as the condition of the two examples I have received does not warrant a prolonged 
examination ; but I think there is little doubt it will prove to be closely allied to the New Zealand 
Didymocanthe. 
DipYMOCANTHA. 
Didymocantha quadriguttata, n. sp.—Capite thoraceque rufis, antennis 
pedibusque testaceis, elytris pallide testaceis vitta laterale guttulisque quatuor 
discoidalibus nigris; corpore subtus plus minusve infuseato. Long. corp. 
11-12 m.m. 
Head and thorax castaneous or rufescent, with many white hairs, the latter 
with coarse punctuation along the middle, and just behind the middle, with a 
slight tuberculation, which is prolonged backwards as a smooth, not raised space 
not quite reaching the basal margin; on each side of the disc, near the front, 
there is a more distinct tubercle, the sides behind the middle with an acute tooth. 
Scutellum clothed with pallid scales or hairs. Elytra with rather coarse, definite 
punctuation, becoming a little finer at the apex, and with a scanty pallid pubes- 
cence, in front of the middle with two very minute black dots, and behind the 
middle with a pair of slightly larger dots. The male has the antenne much 
longer than the body, but in the female they extend only slightly beyond the 
extremity of the elytra. 
This is very closely allied to D. sublineata, but is a rather larger insect, with 
not quite so coarse punctuation on the wing-cases, and with the dark lines reduced 
to small dots. D. sublineata I have not seen from the South Island. 
Picton, two males ; Greymouth, one female. No. 879. Helms. 
