GALERUCIDAE. 473 
3977. Luperus perplexus sp. nov. 
Nitid, aeneo-niger, tibiae and basal joint of tarsi fusco-testaceous. 
Head narrower than thorax, with some grey hairs in front. Thorax 
a third broader than long, the base a little curved near its sides, so that 
its angles, notwithstanding a slight thickening of the lateral margins, appear 
indefinite ; it is very little wider before the middle than behind, where it 
is nearly straight; disc distantly, rather finely and irregularly punctate, 
rather more closely and less finely near the sides, near each of which, in 
front of the base, there is generally a slightly raised spot. Elytra nearly 
four times as long as thorax, broader than it is at the base, their shoulders 
and apices rounded; they are distinctly, moderately finely and closely 
punctured and more or less transversely rugose, and there is a broad 
impression at the inner side of each shoulder. 
Antennae nigrescent, attaining the posterior femora, or not, accord- 
ing to sex, 2nd joint a little thicker and shorter than 3rd, the others 
filiform. 
Legs moderately stout and elongate, tibiae almost straight, tarsi rather 
narrow. 
Length, 5-6 mm.; breadth, 25 mm. 
Scarchff, Moa Basin, and adjacent localities ; numerous specimens found 
_ by Mr. T. Hall. 
Obs —The first example was captured at Broken River, Canterbury, by 
Mr. J. H. Lewis, and was labelled 3021 in my collection, and its description, 
intended for the Ann. Mag. Nat. Hist., ser. 8, vol. iv, September, 1909, 
having been omitted it is included amongst the variable members of this 
species. In one variety the slight swelling of the thorax near each hind 
angle is quite nodiform, in other cases it is obsolete; in another individual 
there is a pair of nodosities near the middle of the thorax. Three specimens 
labelled “* Var. B” are of a shining brassy hue. 
3978. Luperus pygidialis sp. nov. 
Subdepressed, shining, sparingly clothed with fine, decumbent and 
suberect, greyish hairs; aeneo-niger, legs and antennae light rufo-testaceous, 
the terminal joints of antennae and tarsi slightly infuscate. 
Head nearly smooth behind, with a well-marked interocular furrow, 
it 1s rather narrower than the front of thorax; eyes not prominent. Thorax 
a third broader than long, with moderately marginate, slightly rounded 
sides, the base a little curved near the sides, with obtuse angles; disc 
irregularly, moderately finely and closely punctate, more closely near the 
sides, without inequalities. Elytra almost four times the length of thorax, 
rather broader than it is at the base, a little wider behind, with subtruncate 
or broadly rounded apices ; they are distinctly, rather finely and moderately 
rugosely and closely punctured, rather more coarsely behind than along 
the middle of each, but are without definite intrahumeral impressions. 
Pygidium obviously protuberant, minutely and densely sculptured, with 
a deep broad furrow along the middle. 
Antennae reaching to beyond intermediate femora, moderately stout, 
2nd joint shorter than the next, jomts 4-10 but little longer than 3rd, each 
slightly narrowed towards the base. 
Legs moderately long, tibiae almost straight. 
