36 Mr. G. R. Waterhouse.on Coleopterous Insects 
Pedoneces pubescens., Ped. oblongo-ovyatus, supra modice convexus ; 
piceo-niger, pilis breyissimis, adpressis, fuscis, obsitus; antennis 
pedibusque piceis; capite thoraceque creberrime punctulatis ; 
elytris punctato-striatis, striis non pilosis, interstitils convexis.— 
Long. corp. 3} lin. 
The thorax is rather broader than long, has the sides slightly 
rounded, the anterior margin rather narrower than the posterior, 
the hinder angles right angles : the elytra are of an oblong form, 
scarcely broader in the middle than elsewhere, and very little 
broader than the thorax ; the pale brownish mimute hairs have a 
tendency to a linear arrangement, and are confined to the im- 
terstices of the strize, which ‘under a strong lens have a coriaceous 
appearance ; the punctures of the ‘strize are by no means deep, 
and distinctly separated ‘from each other. 
Mr. Darwin found this species under stones on a hill in Chat- 
ham Island in the month of September. 
Section XYLOPHAGI, Latreille. 
Genus Apate, Fabricias 
In Mr. Darwin’s collection are three specimens of a species of 
this genus which are about equal in size to the Apate capucimnus 
of authors, but differ m being of a black or pitchy-black colour, 
in having the elytra more convex in the transverse direction, with 
the punctures rather less deep and more distinctly separated ; 
the hinder portion is obliquely truncated, but descends more sud- 
denly than in <4: capucinus, and-each elytr on is somewhat humped 
towards the’apex:' the upper surface of the thorax is covered 
with ‘smal flattened, polished tubercles which are extremely close 
together ; the fore-part is covered with angular or acutely pointed 
tubercles of large size, and is produced into two largeish conical 
protuberances, the points of which are bent downwards.and oyer- 
hang the head; these protuberances. are not only’covered with 
tubercles, but have numerous pale hairs * : the mesial portion of 
the head, between the eyes, is smooth and polished ; the anterior 
part is rough; the under parts are clothed with whitish hairs. I 
have an insect, in my own collection froma part. of the world which 
is, much better, known (Colombia), and which is undoubtedly the 
same -species. as the Galapagos insect... From the wide range 
which it has, it: is no doubt knowm and described. 
The«specimens: above referred to were found by Mr. Darwin 
in the branches ofa dead Mimosa tree*in Chatham Island, and 
that gentleman:states m his notes that the whole knee, of ‘the 
bough was perforated by them. 
* These protuberances are less developed than in the 4pate cornuta, 
