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, shghtly rounded near the broadly curved 

 apices ; their punctation rather coarser and much closer than that of the 

 thorax, with slightly 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 nwderately 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 appeiidiculate at the base. 



The thoracic impressions, more coarsely and rugosely sculptured elytra, 

 filiform antennae, more distorted and outwardly prominent posterior tibiae, 

 and the laigei" basal tarsal joint distinguish this species from A. piliventris 

 (3782). 



Length. 3 mm. ; breadtli. quite 1 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. Laperus 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 bi'oad as front of thorax, with obtuse antennal elevations ; 

 nearly smooth or only finely strigose behind, with an occipital longitudinal 

 groove. Thorax a tliird 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 irregular 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 extren\ity the sculpture 

 is even coarser ; there is an impression near each shoulder. 



Tibiae almost straight, finely pubescent ; tai'si 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 itii ; metasternum grooved alons the middle. 



