1128 COLEOl'TEllA 



other species of similar size ; the antennae less strongly serrate than 

 in S. similis, their second and third joints not quite so much abbre- 

 viated . 



(J. Length, 2f lines; breadth, nearly ^ line. 



Pokeno, near the Waikato. One specimen. 



2004. L. frontalis, »• •'>• SJtinmg ; pubescence distinct, 

 cinereous and flavescent ; head, thorax, and antennae black ; elytra 

 pitchy-black, reddish near the base; legs reddish-brown. 



Head moderately coarsely punctured, the forehead curved in 

 front, the margins near the antennal spaces somewhat raised. 

 AntenncB elongdiXe, ohvion^ly serrate; second and third joints short, 

 conjointly about one-third shorter than the fourth. Thorax longer 

 than broad, very gradually narrowed towards the apex; distinctly, 

 moderately strongly, not very closely punctured, less distinctly 

 owards the base. Elytra punctate-striate, interstices rugulose. 



This is an ally of L. ohsciiripes ; the body is rather larger; the 

 punctures on the thorax are more sharply defined, with smooth 

 intervals ; the serrate joints of the antennaa are rather longer, and 

 the lateral margins of the forehead are more distinctly elevated. 



^. Length, 3f lines; breadth, -J line. 



Waitakerei Kange. Fem. incog. 



Mecastrus. 



2005. M. intermedius, n.s. Convex, broad, glossy-black; 

 pubescence distinct, blackish and ash-eoloured. 



Rather shorter and less convex than M. convexus, but decidedly 

 more convex (the hind-body especially) than M. discedens. From 

 the former ic differs in its more distinctly and more closely punctured 

 thorax, and by the fact that the elytral sculpture is continued to the 

 apex, though not as obvious there as it is near the base ; the apices 

 are rather strongly or subacutely rounded, thus leaving an elongate 

 gap at the sutui-e. The elytra are not depressed, a character which, 

 of itself, distinguishes this species from it/, discedens, and, moreover, 

 the striae are more distinct on tbe basal portion (but not so well 

 marked behind) than in that insect. This species, therefore, is just 

 intermediate between these tv^o. The elytral interstices are ru- 

 gulose. 



Male. Antennae thick, joints 4-10 inwardly prolonged at the 

 apex so as to be strongly serrate ; the second and third short, the 

 two, taken together, one-third shorter than the fourth. 



Fem. Antennae more slender, their third joint appreciably longer 

 than the second, these two conjointly as long as the fourth. 



3 . Length, 3-^ lines ; breadth, f line. 



Tuakau, near the Waikato River ; one male. Whangarata ; one 

 female. 



Corymbites. 



2000. C. irregularis, "■*■■ {Sharp; Trans. Roy. Duh. Soc, 

 ibSG, p. 401.) Fiuco-niger, densius pubescens, opacus, elyfcris 



