4O COLEOPTERA 



notch and two wider post-ocular ones) ; base widely, but not deeply, 

 angularly incurved ; lateral margins distinct, the apical finer ; pos- 

 terior angles rectangular, resting on the hind-body, the anterior 

 obtuse ; the sides broadly rounded as far as the middle, behind 

 slightly narrowed, nearly straight; having only a slight ante-basal 

 sinuosity ; it is convex and a little uneven, having two distinct, dis- 

 tant, basal impressions, two elongate frontal ones, the same number 

 lateral, and a more or less evident dorsal stria ; its punctation 

 neither close nor coarse and becoming less perceptible on the sides. 

 Scutellum smooth. Elytra oviform, elongate, slightly wider at the 

 base than thorax and still wider at the middle, deflexed and nar- 

 rowed posteriorly, humeral angles a little reflexed ; their sculpture 

 consists of about twelve rather closely but not coarsely punctured 

 striae ; of these the four sutural are regular, but the others sometimes 

 form elongate insulated spaces. Underside almost smooth ; epi- 

 pleurae punctate. Legs stout, tibia3 arcuated, a little dilated and 

 pubescent towards the extremity. 



On a careful examination it will be noticed that the sides of the 

 thorax, midway between the middle and hind angles, are widely yet 

 slightly dilated : this, together with the more or less obvious median 

 furrow, distinguish it from all the other species except A. clialmeri. 



Length, 5^ lines ; breadth, 2j. 



Found by Mr. T. F. Cheeseman, Wangapeka Valley, Nelson. 



1495. A. nifilabrum, n.s. Sub-parallel, gradually narrowed 

 medially, elongate, moderately convex transversely ; bronzed-brown, 

 not very glossy ; legs pubescent, antennae ferruginous. 



Head finely and rather distantly punctured, with a well-marked 

 groove extending from the inner side of each eye to the almost 

 equally straight suture of the epistome ; labrum rufescent, closely 

 but finely punctured. Antenna robust, with yellow hairs. Pro- 

 thorax longer than broad, apex sub-truncate, anterior angles 

 rounded, gradually narrowed from front to base, posterior angles 

 rectangular, base widely, but not deeply, angularly incurved ; 

 lateral and basal margins fine but distinct, the frontal obsolete ; it 

 is impressed with fine and rather distinct punctures. Scutellum 

 smooth behind, very coarsely and densely punctured in front. 

 Elytra elongate, slightly broader at the base than the thorax, 

 humeral angles rounded, with reflexed rims, from thence gradually 

 widened to beyond the hind-thighs and then narrowed apically, 

 finely marginated ; each has nine finely-punctured striae, the inter- 

 mediate confluent posteriorly, interstices almost plane and finely 

 punctulated. Underside piceous, more or less punctate ; coxae rufes- 

 cent. 



The antenna similar to those of A. amaroides ; eyes transverse, 

 elongate-oval, without apparent frontal ernargination. Inter- coxal 

 suture bilineated and strongly curved in front. 



It may be readily identified by its unusually long thorax, having 

 a very slight outward curvature in line with the front femora, and 

 the very coarse sculpture along the base of the scutellum. Like 

 A. alienum, an aberrant form, 



