LEBIIDAE. aye 
Chpping’s Bush and Staircase, from 1,500 ft. to 3,500 ft. Ten found by 
Mr. T. Hall during January and March, 1914, and one from Mr. M. O. Pasco, 
found on Ben Lomond. 
Group PERICALIDAE. 
3818. Scopodes instabilis sp. nov. Scopodes Erichson, Man. N.Z. Coleopt., 
Pp. Of. 
Subdepressed, glossy black, slightly aeneous; legs, antennae, and palpi 
nigro-piceous. 
Head large, smooth, the space between the hind part of the eyes as 
wide as the thoracic apex, the frontal portion rather narrower. Eyes large 
and prominent, extending outwardly as far as the middle of thorax. 
Thorax of about equal length and breadth, widest before the middle, 
shghtly and obtusely angulate, and with a setigerous puncture there, at 
each side, gradually narrowed behind ; lateral margins distinct, ending just 
before the true base, and there bent inwardly, and more slender, for a very 
short distance only, without forming angles ; its surface apparently smooth, 
yet densely and very minutely sculptured, mesial groove distinct, extend- 
ing from the basal depression to the oblique frontal impressions. Elytra 
fully thrice the length of thorax, twice its breadth behind the middle, with 
curvedly narrowed, distinctly margined shoulders, and subtruncate, slightly 
oblique apices; their striae shallow, sometimes obsolete towards the sides, 
more distinct near the suture, interstitial punctures usually indefinite. 
S. laevigatus (135), which I have not seen, is described as being, as is 
also the head, unusually narrow, with a short, rounded, cordate thorax. 
S. laevistriatus (1474) may be at once separated by its nearly obsolete 
humeral margins. S. cognatus (1570), from south-east Otago, has well- 
marked longitudinal striae on the head; the thorax is evidently broader 
before the middle, distinctly angulate there, and more obliquely narrowed 
behind, and there are some fine striae across it. 
Length, 32 mm.; breadth, 13 mm. 
Moa Basin, west of Mount Algidus. The type was found by Mr. T. Hall 
on the 20th October, 1913, and after diligent explorations of Point Hill 
and Mistake Basin the following varietal forms were obtained: (a) Head 
unisuleate near each eye, feebly striate, the thorax transversely so ; 
(5) similar, but with an interccular fovea; (c) lateral margins of thorax 
more or less distinctly prolonged half-way across the true base. Mr. Hall 
also secured several specimens of 132, a pair of 131, and another of 1813. 
Group SPHAERIDIIDAE. 
3819. Stygnohydrus posticalis sp. nov. Stygnohydrus Broun, Man. N.Z. 
Coleopt., p. 1336. 
Ovate, attenuate posteriorly, very convex, glabrous, glossy aeneo-niger ; 
thoracic lateral margins, the elytral suture along the posterior declivity 
only, and their apices, dull rufo-castaneous ; tibiae dark rufous; palpi and 
antennae testaceous, but with the club sometimes a little infuscate and 
opaque ; tarsi fusco-rufous. 
Head large, a little rounded, finely yet distinctly but not closely punc- 
tate. Eyes with numerous fine facets. Thorax evidently transverse, base 
