BTRRHIDAE. 533 



punctures, the second abbreviated, the inner ones obsolete near the middle, 

 the others, towards the extremity, are transformed into feeble striae. 



Antennae longer than the head, their thick basal joint just visible above, 

 second nearly twice as long as broad, third slender and elongate, as long as 

 the following four combined, fourth and fifth longer than broad, the next 

 two shorter and obconical ; eighth short and broad, prolonged inwardly ; 

 club triarticulate, oblong, minutely and densely pubescent, basal joint 

 transversely quadrate, the next shorter and slightly broader, the terminal 

 largest, obtusely subcorneal. 



Tibiae finely denticulate externally and bearing fulvescent setae, the 

 anterior sinuate outwardly below the middle and more curvedly expanded 

 inwardly than the others. 



Underside black, slightly nitid, distinctly, rather finely and closely punc^ 

 tate, the last ventral segment with yellow pubescence. Prosternal process 

 straight and narrow. Flanks of nietasternum curvedly expanded inwardly 

 in front, narrow behind. 



This no doubt is nearly alhed to Sharp's N. zealandicum (1964), from 

 Greymouth, but as I have not seen any specimens from that locality, and 

 as it is described as having only some abbreviated series of fine punctures 

 on the basal portion of the elytra, I think N. seriatum must be distinct. 



Length, 5J mm. ; breadth, 3J mm. 



Mount Hope ; 7th March, 1915. One, found by Mr. T. Hall. 



Group Melolonthidae. 

 Odontria White. Man. N.Z. Coleopt., p. 265. 

 4059. Odontria halli sp. nov. 



Oblong, slightly convex, opaque, head somewhat nitid ; varying from 

 fusco-testaceous to light brown, in the former case the alternate elytral 

 interstices have oblong dark spots, in both examples there is a large dark 

 frontal mark on the thorax ; occiput and legs testaceous, antennae and 

 tarsi rufo-testaceous ; pubescence pale yellowish and infuscate, mostly 

 decumbent on the elytra, but with longer erect setae along their sides and 

 on the head and thorax. 



Head coarsely and irregularly punctured ; clypeus subtruncate in front, 

 with reflexed margins. Thorax finely punctate, nearly twice as broad as 

 long, finely marginate, rather more narrowed before the middle than 

 behind, base widely bisinuate, with obtusely rectangular angles, apex widely 

 incurved. Scutellum large, finely punctured. Elytra of the same breath 

 as thorax at the base, almost four times its length, gradually expanded 

 posteriorly, with subtruncate apices ; their whole surface finely punctate ; 

 on each elytron there are four dorsal striae, the others are obsolete. 

 Pygidium exposed. 



Anterior tibiae tridentate externally, the others bear tufts of spiniform 

 setae ; tarsi and claws normal. 



Antennae 8-articulate, basal joint elongate, half hidden above, slender 

 near the base, clavate at the extremity ; second short and thick ; third 

 slender and very elongate, attached near the middle to the apex of the 

 second, its basal portion shorter than the other and projecting forwards ; 

 club composed of five equally elongate, distinctly pubescent leaflets. 



The South American genera Sericoides and Listronyx also possess five- 

 jointed clubs, but the antennae themselves are 9-articulate. Sericospilns 

 in facies closely resembles Eusoma, both have eight-jointed antennae and, 

 in the male, a quadriarticulate club, but the peculiar form of the fourth 



