1238 COLEOPTEEA 



rudiments of striae ; its base squamose. Thorax punctate, con- 

 stricted in front, with two fuscous median crests, and an irregularly- 

 formed blackish space at the base. Elytra cordiform, convex, 

 striate-punctate ; a narrow, transverse basal space dull-black, as are 

 also two small crests on the posterior declivity and two oiieach side; 

 there are two conspicuous yellowish crests on the top of the apical 

 portion, and a smaller one between each of these and the base but 

 near the side, and there are two elongate dark ones near the suture 

 not far from the base. Legs stout, obscure-red, densely squamose. 

 Antenna sparsely pilose, second joint rather shorter and more 

 slender than the first. 



This species bears a close resemblance to the common Acalles 

 erroneus; it is, however, radically different. It has no visible scutel- 

 lum, the insect is narrower, the hind-body is more convex, and, 

 consequently, the apical portion seems more vertical and narrower ; 

 the posterior crests are situated further back and are more hori- 

 zontal ; the elytra are more abruptly raised from the base, and their 

 suture is elevated instead of being plane ; the sides are narrowed 

 from the middle forwards in place of being subparallel. 



Length (rost. excl.), If lines ; breadth, -| line. 



This species is dedicated to J. Adams, Esq., who found it on the 

 Mount Arthur plateau, elevation about 4,000ft. 



2179. A. COncinmiS, n - s. Subovate, convex, piceous ; 

 densely covered with depressed, rather round scales, and coarse, 

 erect, fuscous and greyish setae ; the scales are variegate, mostly 

 reddish-brown, but paler, almost testaceous ones form a broad vitta 

 near each side of the thorax, prolonged backwards along the elytra, 

 each side of which bears other pale scales ; rostrum pitchy-red, 

 tarsi and antennae paler. 



Rostrum gradually dilated apically, rather plane above, its 

 frontal portion nude and shining and not closely punctured, the 

 basal half squamose. Thorax subovate, rather longer than broad, 

 narrower in front than behind, widest near the middle, coarsely and 

 closely punctated, indistinctly channelled along the middle, and 

 bearing two small median crests. Scutellum invisible. Elytra of 

 about the same width as thorax at base, shoulders much narrowed, 

 from thence backwards considerably widened, the broadest part in 

 line with the top of the abruptly-deflexed posterior portion ; coarsely 

 striate-punctate, there is a curved mark (it can hardly be called a 

 prominence) on the summit of the hind slope terminating between 

 the suture and each side in a small crest, and a more or less obvious 

 longitudinal elevation in front of each of these crests. Legs robust, 

 bearing coarse erect setae. 



A well-marked species, having somewhat the appearance of 

 A. erroneus, but with a longer thorax not suddenly contracted in 

 front ; the hind-body is not unlike that of A. erroneus, but is rather 

 longer, with more rounded sides. 



Length (rost. excl.), If lines ; breadth, f line. 



Waitakerei Range. 



