POGONIDAE. 369 
3814. Tarastethus propinquus sp. nov. 
Nigro-piceous, legs and mandibles piceo-rufous, antennae and tarsi light 
fusco-rufous, palpi fulvescent. 
In form like 7. longulus, rather larger, uniformly darker. Thorax 
longer, almost as long as broad, with finer margins; its base medially 
emarginate, distinctly but not strongly curved towards the slightly promi- 
nent angles, which are setigerous ; it is without basal punctation or fossae. 
Elytral striae apparently impunctate, sharply impressed near the suture. 
obsolete towards the sides. The eyes rather more prominent. 
Underside smooth, terminal segment of abdomen bipunctate at each 
side of the apex. 
Anterior tarsi of the male with the basal 3 joints a little dilated, and 
provided underneath with greyish squamae. 
T. simplex (2656), found by Commander J. J. Walker, R.N., at Port 
Chalmers, measures 5mm. by2mm. _ Its thorax is decidedly cordate, a good 
deal broader and more rounded before the middle, with minute longi- 
tudinal sculpture at its base. The male has the same tarsal vestiture as 
T. propinquus. 
$. Length, 6mm.; breadth, nearly 2} mm. 
Ben Lomond. Another of Mr. T. Hall’s discoveries; two examples on 
about the 6th March, 1914. 
3815. Tarastethus optatus sp. nov. 
Oblong, slightly convex, nitid; fusco-niger, the sides, but not the 
margins, and apices of elytra and the femora fusco-testaceous ; palpi. 
antennae, and tarsi more or less fulvescent; mandibles pitchy-red ; tibiae 
obscurely rufescent. 
Head rather narrower than front of thorax, eyes inclusive, interocular 
impressions rather large and deep, the interval between each and the 
sharply marked lateral groove obtusely elevated ; epistome truncate, and 
with 4 or 5 small punctures; labrum deeply emarginate; eyes large but 
only moderately prominent. Thorax a third broader than long, base trun- 
cate, apex a little incurved, its sides with distinct, shghtly reflexed margins, 
widest and rounded at the middle, gently narrowed towards the slightly 
projecting hind angles; the surface exhibits some feeble transverse striae, 
the central groove is slender, and does not reach the apex, basal fossae 
shallow and indefinite and feebly rugose. Elytra oblong-oval, rather broader 
than thorax, twice its length, with very distinct, somewhat reflexed margins, 
and broadly rounded apices ; their striae apparently impunctate, the sutural 
three, on each elytron, not deep but reaching the extremity, the outer ones 
shallow and obsolete near the base ; interstices plane, the 3rd feebly tri- 
punctate, subapical carinae distinct. 
Like 7’. oxygonus (1456) ; in it, however, the margins of the thorax and 
elytra are broadly testaceous; the thoracic fossae are sulciform and well 
marked, and the elytral striae are punctate and distinct. Both species are 
without setae at the posterior angles. 7’. optatus has obtuse terminal joints 
of the palpi; in 1456 they are acuminate. 
2. Length, 64 mm.; breadth, quite 25 mm. 
Mount Dick. Unique. Found by Mr. Hall on the 17th March, 1914. 
