360 Suarp— On New Zealand Coleoptera. 
depression not reaching the base; the lateral margin is not truly crenate, though it 
has the appearance of being broken owing to its being impinged on by the punc- 
tures in which the intra-marginal tactile setze are placed; these latter are nine or 
ten in number on each side, the three or four anterior being placed rather near one 
another. The elytra are narrow, the shoulders being excessively diminished, and 
they bear series of impressions or large punctures, the external ones being deep, 
those near the suture rather smaller and less deep. 
Greymouth. I received my example of this species from Mr. Helms four or five years ago, but have 
not described it hitherto, hoping I might be able to compare it with M. crenicolle Cast., to which it is 
probably allied. Although I have not been able to make the acquaintance of Castlenau’s species, I feel 
little doubt the two are distinct, though Castlenau’s description is very brief and imperfect. 
DictymMa (noy. gen. Broscinorum). 
Ex affinitate generis Mecodeme. Antennz breves, moniliformes, articulis 
5-11 ubique pubescentibus. Palpi graciles, articulo ultimo tenue, preecedente yix 
crassiore. Tibiz anteriores sat late, extus recta, angulo apicale externo haud 
producto. Tarsi breves. 
The two species for which I propose this name are allied to Metaglymma, 
from which they differ by the unproduced angle of the front tibie, and by the 
strongly pubescent antennze, as well as by the mandibles which in Metaglymma 
are elongate, and have no seta in the scrobe, whereas in Diglymma the scrobe is 
setigerous. 
They have the terminal joint of the palpi more slender than in any of the 
other yet described New Zealand Broscini, and in this respect differ strongly from 
Oregus, which also has front tibie simple at the apex. Diglymma differs from 
Mecodema by the tibial structure, and by the shorter tarsi and more slender palpi. 
The only other New Zealand genus of the Broscini is Brullea, and although I am 
not acquainted with it, except by description, it is evident that it is very different 
from Diglymma. According to Putzeys (Ann. Mus. Gen. 1873, p. 318) it has the 
palpi slender like Diglymma, but the structure of the tibiz must be remarkably 
different. Metaglymma clivinoides Cast., redescribed at length by Putzeys in his 
revision of the Australian and New Zealand Broscides (op. sup. cit. p. 314) is, I 
think, probably a species of Diglymma, though it is strange that Putzeys should 
have placed it in Metaglymma if it has pubescent antenne, as he makes the bare 
condition of those organs one of the most prominent characters of Metaglymma ; 
he indicates, however, that M. clivinoides should probably form a new genus with- 
out mentioning the grounds for his opinion. His words are, ‘‘ ces deux derniers 
insectes (¢.e. M. clivinoides, and M. dyschirioides) appartiennent 4 peine au genre 
dans lequel je les laisse provisoirement.” 
