﻿188 
  Mr. 
  G. 
  R. 
  Waterhouse's 
  Descriptions 
  of 
  

  

  to 
  the 
  insects 
  found 
  in 
  islands 
  so 
  far 
  removed 
  from 
  any 
  mainland, 
  

   such 
  as 
  Kerguellen's 
  land. 
  

  

  Drepanoderes,* 
  nov. 
  gen. 
  Phyllobid^. 
  

   Antennce 
  raediocres 
  ; 
  scapo 
  crassiusculo, 
  paulo 
  curvato 
  ; 
  arti- 
  

   culis 
  duobus 
  basalibus 
  funiculi 
  longiusculis 
  obconicis, 
  reli- 
  

   quis 
  turbinatis 
  ; 
  clava 
  angusta, 
  elongato-ovata, 
  acuminata. 
  

   Rostrum 
  breve, 
  sub-quadratum, 
  supra 
  carinatum. 
  Scrobs 
  

   brevis, 
  recta. 
  Oculi 
  ovati, 
  convexi. 
  Thorax 
  transversus, 
  

   utrinque 
  in 
  spinam 
  acutam, 
  retrorsum 
  curvatam, 
  valde 
  pro- 
  

   ductus. 
  Scutellum 
  triangulare. 
  Elytra 
  oblongo-ovata, 
  con- 
  

   vexa. 
  Pedes 
  mediocres 
  ; 
  femoribus 
  dentatis. 
  Corpus 
  ob- 
  

   longo-ovatum, 
  convexum, 
  alatum, 
  minoris 
  magnitudinis. 
  

   The 
  most 
  striking 
  peculiarity 
  in 
  this 
  genus 
  is 
  in 
  the 
  form 
  of 
  the 
  

   thorax, 
  and 
  has 
  no 
  parallel 
  in 
  the 
  Curculionides 
  ; 
  there 
  are 
  genera, 
  

   such 
  as 
  Deracanthus 
  and 
  AcantJiotrachelus, 
  in 
  which 
  the 
  thorax 
  is 
  

   armed 
  with 
  a 
  lateral 
  spine, 
  but 
  in 
  Drepanoderes 
  the 
  side 
  of 
  the 
  thorax 
  

   is, 
  as 
  it 
  were, 
  itself 
  produced 
  into 
  a 
  large 
  lateral 
  process. 
  Almost 
  

   immediately 
  in 
  parting 
  from 
  the 
  apex 
  of 
  the 
  thorax, 
  the 
  outline 
  

   runs 
  obliquely 
  outwards, 
  and 
  with 
  a 
  gentle 
  curve 
  is 
  likewise 
  di- 
  

   rected 
  backwards, 
  to 
  form 
  the 
  upper 
  margin 
  of 
  the 
  process 
  in 
  

   question; 
  the 
  outline 
  of 
  the 
  under 
  margin 
  is 
  concave, 
  the 
  point 
  of 
  

   the 
  process 
  is 
  raised 
  very 
  little 
  above 
  the 
  level 
  of 
  the 
  base 
  of 
  the 
  

   elytra, 
  but 
  terminates 
  external 
  to 
  the 
  line 
  of 
  the 
  side, 
  hence 
  the 
  

   thorax 
  measured 
  across 
  from 
  the 
  points 
  of 
  the 
  processes 
  is 
  

   broader 
  than 
  the 
  elytra; 
  the 
  base 
  of 
  the 
  thorax, 
  however, 
  is 
  about 
  

   one-third 
  narrower 
  than 
  the 
  elytra 
  at 
  the 
  corresponding 
  part; 
  the 
  

   humeral 
  angles 
  form 
  right 
  angles; 
  the 
  sides 
  of 
  the 
  elytra 
  are 
  at 
  

   first 
  nearly 
  parallel, 
  but 
  behind 
  the 
  middle 
  they 
  are 
  slightly 
  

   dilated; 
  the 
  apex 
  is 
  rounded. 
  Besides 
  the 
  very 
  slender 
  central 
  

   keel 
  to 
  the 
  rostrum, 
  there 
  is 
  a 
  delicate 
  longitudinal 
  ridge 
  on 
  either 
  

   side 
  of 
  the 
  upper 
  surface. 
  

  

  Drepanoderes 
  viridifasciatus. 
  

  

  Oblongo-ovatns, 
  niger, 
  viridi-squamosus, 
  antennis 
  podihusque 
  

   rufis 
  ; 
  capite 
  postice 
  nigro 
  ; 
  thorace 
  punctulato, 
  fasciis 
  tribus 
  

   longitudinalibus 
  atris 
  notato; 
  elytris 
  atris 
  punctato-striatis, 
  

   fasciis 
  quatuor, 
  utrinque 
  et 
  in 
  medio 
  plus 
  minusve 
  interrup- 
  

   tis, 
  maculisque 
  apicalibus, 
  viridi-squamosis. 
  

  

  Long. 
  corp. 
  2f 
  lin. 
  

  

  Patria, 
  India 
  Orientalis. 
  

  

  • 
  From 
  ipiwifti, 
  scythe, 
  and 
  Jsfo, 
  neck. 
  

  

  