402 Suarp—On New Zealand Coleoptera. 
ASYMPHUS (nov. gen.). 
Frons anterius rotundato-truncata, haud marginata; clypeus brevis perpendi- 
cularis ; coxee posticze lamina exterius perbreve. 
The insect for which I establish this genus has quite the aspect of a Corymbites : 
indeed, I at first thought it would prove to be the female of C. mundus; but as 
the front of the head shows a well-marked abrupt inflection of the clypeus, the 
species cannot be placed in Corymbites. This character brings it nearer to Thora- 
mus, but it does not resemble any of the species of that genus, and has the mesos- 
ternal cavity destitute of elevated margins, and the coxal lamina is very much 
smaller than in Thoramus. The other characters are apparently the same as in the 
two genera mentioned. The meso- and metasterna are not at all consolidated at 
their point of contact between the coxee; the prosternal process is nearly straight, 
and shows no division into two parts. The genus is not only allied to Corymbites 
and Thoramus, but comes very close to Cryptohypnus (as illustrated by C. thoraci- 
cus), from which it is distinguished chiefly by the shape of the front of the head, 
the deflexed part of the front not being completely unfolded, and by the greater 
elongation of the basal joint of the tarsi. 
Asymphus insidiosus, n. sp.—Rufescens, antennis pedibusque testaceis, elytris 
pallide brunneis; prothorace subquadrato, crebrius subtiliter punctato, angulis 
posterioribus parum prolongatis, apicibus quasi-obtusis; elytris striatis, obsolete 
punctulatis, striis ad apicem profundis, apicibus obtusis. Long. 13 m.m. 
Antenne yellow, reaching back slightly beyond the thorax, basal joint stout, 
second and third short, subequal, fourth twice as long as second. Thorax straight 
at the sides, and only very slightly narrowed at the front angles, slightly longer 
than broad, the hind angles but little prolonged, and slightly twisted or uplifted, 
their apices viewed laterally appearing rounded, the surface is rather closely 
and finely punctured, extremely feebly pubescent. Elytra rather distinctly striate, 
the strize continued without any obliteration to the apex, this not at all acuminate ; 
the interstitial punctuation is very indistinct, and the pubescence very feeble. 
Bealey, Helms, one example. I suppose the individual to be a male, it is remarkable inasmuch 
as the front leg on the right side is aborted, and only one-third the natural size; but the development 
of the example does not appear to have been in any way affected by this. 
GERANUS. 
Geranus crassus, Shp.—Mr. Helms has sent me from Greymouth, Picton 
and Bealey, specimens of Elater lineicollis, White, accompanied in each case by one 
or more examples of Geranus crassus from each locality, so that I now entertain 
no doubt that the two are the sexes of one species, G. crassus being the female. 
