NEW ZEALAND COLEOPTERA. 299 
1365. Lissotes helmsi, (Sharp)—Ent. Mon. Mag. Aug., 
1881, p. 49.—Mger, opacus, prothoracis elytrorumque marginibus 
Squamosis ; capite prothoraceque crebre punctatis, hoc lateribus rotun- 
datis, margine anteriore leviter bisinuato, angulis postertortbus omnino 
latissime rotundatis ; elytris sat crebre punctatis, seriebus quatuor 
squamorum brevium erectorum 
Long. corp. (sine mandibulis), 20 mm., lat. 10 mm., male. 
Head with numerous punctures on the upper surface, which, on 
the extreme vertex, became almost dense; the hind angles slightly 
prominent, but without any distinct projection. Prothorax very 
strongly transverse, with very numerous rather fine punctures ; 
its front has a slight but distinct margin, which becomes obsolete 
in the middle, the sides are a little curved, and the hind angles 
are very broadly rounded ; side margins very densely covered 
with very short fulvous sete or scales. lytra short and broad, 
dull, with four longitudinal series of closely-packed, erect, very 
short fulvous sete, and with the strongly raised side-margins 
very densely covered with similar setze, the surface between the 
series very distinctly punctured. The upper-inner face of the 
hind tie is distinctly longitudinally sulcate ; the apical spurs 
are broad. 
The male has the mandibles short and stout, strongly curved, 
with a short basal tooth, which overlaps the labrum, and a very 
large tooth in the middle, which, when the mandibles are closed, 
meets the opposite mandibles just in front of but below the 
labrum. The female is unknown. 
Found at Greymouth, west coast of New Zealand by Mr. 
Helms, in recognition of whose successful researches I have 
named the species. There is not, I believe, any species at all 
similar to it known as occurring in New Zealand. 
DYNASTIDA. 
Phycocus, gen. nov.—Body convex, ovate. Maxillary palpi tri- 
articulate, their terminal joint elongate, straight externally, 
obtusely rounded inwardly, sub-securiform ; labial shorter, two- 
jointed, the apical robust, obtuse. Antenne eight-jointed, basal 
elongate, cylindric; 2nd shorter, dilated outwardly ; 3-5 short, 
obconical ; club compact, large, tri-articulate. Mentwm with two 
large, divergent, triangular lobes. Head large, so formed as to 
conceal the organs of the mouth; antennal cavities large, capable 
of receiving the whole of the antennz. Eyes apparently absent, 
quite invisible. Prothovax transverse. Scutellum small, triangular. 
Elytva completely covering the pygidium. Legs stout ; ; posterior 
femora considerable distended, the others narrow, sub- parallel ; 
anterior ¢ibie tri-dentate, with an inner calcar, between which and 
the outer tooth the tarsus is inserted ; posterior somewhat com- 
pressed, nearly straight, apex lunate outwardly, having a carina 
on the inner and outer edges, the intermediate space concave, 
the tarsus inserted in the hollow, with two foliaceous spurs be- 
yond. Tarsi seemingly normal, all mutilated, three joints only 
