Suarp.—On the Colydiidæ of New Zealand. 395 
A single mutilated individual sent by Mr. Lawson from Auckland. 
Syncalus hystrix, n. sp. 
5. breviter ovalis, convexus, piceus, antennis pedibusque rufis, setis 
elongatis erectis adspersus; tibiis sine setis exsertis. Long.. corp. 
94 m.m. 
At first sight this insect seems to be exactly similar to S. optatus, except 
that it is much shorter in form ; on examination, however, some very im- 
portant differences are seen. The ninth joint of the antenne is here 
scarcely more than half as broad as the tenth, the eyes are much smaller, 
the last joint of the maxillary palpi is broader, and the tibie are without 
erect sete. I think, if the surface were denuded, it would be seen that the 
punctures on the elytra of S. hystrix are much coarser than in S. opiatus ; 
for on a denuded spot I perceive one or two very coarse punctures. 
A single individual has been sent to me by Captain Broun. 
* EpIstRaNus (nov. gen. Colydiidarum). 
Corpus transversim convexum, rugosum, prothorace magno, basi ad elytra 
haud applicata. Caput in thoracem receptum. Antenne 11-articu- 
late, clava biarticulata. Prothorax lateribus subtus valde excavatis. 
Tarsi subtus setosi, artieulo basali quam secundus longiore. Tibiæ 
extus dense ciliate, pro tarsorum receptione subimpresse. Coxe 
posteriores sat distantes. Abdomen breve. 
The extraordinary little creature for which I propose this name has, so 
far as I know, no near described ally; but it displays in some respects an 
affinity with the Tarphii, and it should, I think, be classed in their neigh- 
bourhood. The head, by a movement of nutation, is so placed as to be 
protected by the front of the prosternum (as in the Histeride); and the 
antenne are then received into the two very large, deep, and abruptly 
defined excavations of the thorax. The tibi» are also a good deal modified 
for the protection of the tarsi; these, when turned back, are applied along 
the upper face of the tibiæ; and the outer and lower edge of the tibia is 
very densely ciliated. The excessively coarse and peculiar sculpture is 
much concealed by a dense exudation, which forms a covering very diffi- 
cult to remove. 
Hpistranus lawsoni, n. sp. 
E. niger, antennis pedibusque rufis, tubereulato-rugosus, setis brevius- 
culis parce adspersus. Long. corp. 2 m.m. 
Antenne with the basal joint stout, and only its extremity visible from 
above; second joint stout and rather long, cylindric ; third joint small, but 
more elongate than the small following joints ; ninth joint small, but yet 
a little produced inwardly ; tenth joint broad, strongly transverse ; eleventh 
* Substituted for Epistrophus, “ Ann. Mag. N.H.” Jan. 1877. 
