124 
and covered with minute palish hairs; near the apex of each of the 
femora is a whitish ring. 
In the collection of Mr. Bridges are several species of Curculionide 
closely allied to Listroderes, but differing in having the antennz more 
slender and elongated; the club is very long, distinctiy jointed, and 
very slightly incrassated ; the legs are longer, and the body is covered 
with minute hairs, or hair-like scales, whilst all the species of Listro- 
deres examined by me have the body distinctly clothed with scales. 
Moreover, in none of the insects under consideration do I find the 
tubercles on the apical portion of the elytra, which are so common in 
the Listroderes. Such differences, though readily seen, it is impossi- 
ble to express by a generic term. I have determined to designate 
this new genus by the name 
Apioristus*, nov. gen. 
Antenne longe, tenues; scapus ad apicem subincrassatus ; articuli 
funiculi obconici, 1° longo ; clava elongata distincté triarticulata. 
Rostrum capite feré duplo longius, crassiusculum, subarcuatum, ver- 
sus apicem incrassatum, supra carinatum : mandibule tenues paulo 
elongatz. 
Ocult subovati, subdepressi. 
Thorax transversus, pone oculos lobatus, supra subdepressus. 
Elytra elongato-ovata, convexa,-ad apicem rotundata. 
Tarsi elongati, subtenues, subtis spongiosi. 
Apioristus punctuLatus. Ad. niger, fusco-pilosus ; antennis, tibiis 
tarsisque piceis ; rostro brevi, crasso, carinato ; thorace punctulato, 
brevi subquadrato, anticé angustiori, postice utringue subemargi- 
nato ; elytris oblongo-ovatis, convexis, punctato-striatis, interstitiis 
alternatis maculis parvulis nigris atque albescentibus ornatis. 
Long. corp. et rostri, 64 — 82 lin.; lat. 25 — 32 lin. 
Hab. Valleys of Petorca. 
The whole insect is covered with minute decumbent hairs, and 
these are of an ashy-brown colour. ‘The rostrum is stout, con- 
siderably dilated at the apex, and about twice as long as the head; 
rugose, and has fine longitudinal keels on the upper surface, of which 
the central one is most strongly developed, and the one next it on 
each side indistinct. The head is convex above, and thickly punc- 
tured. The thorax is about one-third broader than long; the an- 
terior margin is straight, and the lateral margins are very nearly 
straight; the anterior part is rather narrower than the hinder part ; 
the hinder margin is in the form of a segment of a circle, beg 
produced in the middle, and joins the lateral margin so as to form a 
somewhat salient but obtuse angle; the upper surface is but very 
slightly convex, and thickly and distinctly punctured.. The elytra 
are convex, and of an elongate-ovate form, and scarcely one-third 
broader than the thorax; the upper surface is densely clothed with 
minute hairs; punctate-striated, the punctures not very large, and 
distinctly separated ; the interstices are plane, or indistinctly convex, 
* From eddies toc, undefined, &e. 
