Coleoptera from Neio Zealand. 289 



tate. Eyes small. Thorax nearly twice as broad as it is 

 long, rather narrower in front than behind ; the sides, how- 

 ever, are nearly straight; the punctuation is slightly finer 

 than that of the head. Scutellum triangular, not broad. 

 Elytra gradually narrowed posteriorly, lateral margins broad 

 at the shoulders, but becoming very narrow behind the poste- 

 rior femora ; the suture near the scutellum is slightly elevated ; 

 they are finely punctured, but not so as to form series, and 

 there are four or five ill-defined shallow striae on each. 



In shape like M. Batesi^ the elytral punctuation much 

 finer; the strise, though shallow and irregular, are quite 

 easily detected. No. 1497 is more like this species, but it 

 has a very broad short scutellum, rather smaller eyes, a longer 

 and more anteriorly narrowed thorax, longer antennae, and 

 more slender legs, and the elytra are subopaque. 



Length 2, breadth quite 1 line. 



Hosvick. One individual. 



Ohs. The following remarks will help any one to separate 

 the species : — 



No. 660 is the most convex ; the punctuation of the elytra 

 is not arranged in lines as in No. 659 ; it is minutely pubes- 

 cent. 



No. 661, the thorax has two large shallow basal impres- 

 sions. 



No. 662 is rather narrow and elongate ; its thorax is a 

 good deal and quite regularly rounded at the sides, and the 

 elytral margins near the shoulders are finely serrate. These 

 characters will enable it to be separated from M. coscus 

 (No. 657). 



Group Helopidse. 

 Edalus 2)leuralis, sp. n. 



Opaque, fuscous, the margins sometimes obscurely rufes- 

 cent ; legs pale reddish or testaceous, antennae dull red ; 

 sparingly clothed with erect infuscate setge. 



IJead more or less irregularly punctured. Thorax almost 

 as long as it is broad, widest before the middle, a good deal 

 narrowed beliind, its sides somewhat flattened and crenate, 

 base sinuate ; the surface rather irregularly and coarsely 

 punctured, with three shallow longitudinal impressions, one 

 of which is in the centre, the others (near the sides) are 

 deepened at the base. Scutellum either short or indistinct. 

 Elytra oblong, slightly narrowed towards the base, lateral 

 margins more or less crenate, the shoulders slightly ))romiuent 

 and wider than the thorax; their scuiptuic ill-dclincd, 



