GALERUCIDAE. 469 
what obtuse; the sides nearly straight and finely margined, anterior angles 
slightly incrassate ; its surface moderately finely and irregularly but not 
closely punctured, with a transverse basal impression at each side and a 
longitudinal one between the middle and each side behind. Scutellum 
smooth, subtriangular. Elytra oblong, rather broader than thorax at the 
base, almost four times its length, slightly rounded near the broadly curved 
apices; their punctation rather coarser and much closer than that of the 
thorax, with shghtly rugose interstices. Pygidium not exposed. 
Antennae filiform, extending backwards beyond the middle thighs, 2nd 
joint longer than broad, nearly as long as 3rd, the following ones longer, 
about equally elongate, and more pubescent. 
Legs moderately stout and long; front and middle tibiae almost 
straight; the posterior medially curvate inwardly, obtusely prominent 
externally at the apex which is deeply grooved for the accommodation of 
the basal tarsal joint, this joint is large, narrow and almost straight above 
but extends considerably downwards, 2nd longer than the broadly grooved 
penultimate ; claw appendiculate at the base. 
The thoracic impressions, more coarsely and rugosely sculptured elytra, 
filiform antennae, more distorted and outwardly prominent posterior tibiae, 
and the larger basal tarsal joint distinguish this species from A. piliventris 
(3782). 
Length, 3mm.; breadth, quite | mm. 
Moa Basin, Canterbury. Unique. Discovered by Mr. T. Hall on or 
about the 20th October, 1913. A second example does not accord exactly 
either with this or 3782. All the species, unfortunately, are represented 
by single specimens ; none have been found in the North Island. 
3970. Luperus halli sp. nov. Luperus Geoffroy, Man. N.Z. Coleopt., p. 631. 
Oblong, subdepressed, glabrous, coarsely sculptured, nitid; rufo- 
violaceous, legs and basal joint of antennae more cyaneous; remaining 
joints and tarsi usually more or less infuscate. 
Head not as broad as front of thorax, with obtuse antennal elevations ; 
nearly smooth or only finely strigose behind, with an occipital longitudinal 
groove. Thorax a third broader than long, its sides nearly straight and 
distinctly margined ; apex truncate, with slightly thickened subrectangular 
angles ; base feebly medially emarginate, a little rounded or oblique towards 
the sides, its angles nevertheless are nearly rectangular ; disc a little uneven 
but without nodosities, closely and moderately coarsely punctured, and 
with very uregular smooth rugae near the middle. Scutellum triangular, 
smooth. Elytra oblong, subparallel, with broadly rounded apices, rather 
broader than thorax, more than four times its length; they are closely 
but not coarsely punctate near the base, beyond this the interstices become 
rugose and very irregular, towards the sides and extremity the sculpture 
is even coarser; there is an impression near each shoulder. 
Tibiae almost straight, finely pubescent ; tarsi narrow, their 2nd joint 
particularly, the penultimate shorter and broader. 
Antennae filiform, reaching the hind thighs, 2nd joint rather shorter 
than 3rd, the following ones longer, about equally elongate, pubescent. 
Underside shining, rufo-violaceous, with some elongate greyish hairs ; 
abdomen finely punctate and transversely strigose, 5th segment double the 
length of 4th ; metasternum grooved along the middle. 
