﻿99 
  

  

  The 
  following 
  memoirs 
  were 
  also 
  read 
  : 
  — 
  

  

  " 
  Descriptions 
  of 
  some 
  new 
  si^ecies 
  of 
  Longicorn 
  beetles, 
  brought 
  from 
  the 
  North 
  

   of 
  China, 
  by 
  R. 
  Fortune, 
  Esq.'' 
  By 
  W. 
  W. 
  Saunders, 
  Esq. 
  

  

  " 
  Descriptions 
  of 
  new 
  Genera 
  and 
  Species 
  of 
  Curculionidae,'' 
  by 
  G. 
  R, 
  Waterhouse, 
  

   I 
  Esq. 
  The 
  following 
  is 
  an 
  abstract 
  : 
  — 
  

  

  OxYRH 
  YNCHU 
  s. 
  — 
  Family 
  Oxyrhynchidw. 
  

  

  Oxyrhynchus 
  Fortuni. 
  A 
  species 
  much 
  larger 
  and 
  proportionately 
  shorter 
  than 
  

   1 
  O. 
  (liscors, 
  with 
  the 
  puncturing 
  both 
  on 
  the 
  thorax 
  and 
  elytra 
  less 
  distinct 
  ; 
  general 
  

   I 
  colour 
  pale 
  ashy 
  brown 
  ; 
  thorax 
  with 
  three 
  longitudinal 
  white 
  lines 
  ; 
  elytra 
  with 
  a 
  white 
  

   line 
  running 
  from 
  the 
  shoulder 
  to 
  the 
  middle 
  of 
  the 
  suture. 
  Hab. 
  N. 
  China. 
  

  

  Oxyrhynchus 
  Philippininensis. 
  Like 
  O. 
  discors 
  in 
  its 
  markings, 
  but 
  of 
  larger 
  size, 
  

   the 
  elytra 
  relatively 
  shorter, 
  with 
  a 
  tooth 
  in 
  the 
  middle 
  at 
  the 
  base, 
  the 
  margin 
  much 
  

   raised 
  between 
  this 
  tooth 
  and 
  the 
  scutellum, 
  and 
  the 
  raised 
  part 
  concave 
  beneath 
  and 
  

   opening 
  in 
  front. 
  Hab. 
  Philippine 
  Islands. 
  

  

  Tetralgphus, 
  a 
  new 
  genus 
  of 
  the 
  Etimidw, 
  which 
  appears 
  to 
  approach 
  most 
  

   nearly 
  to 
  the 
  genus 
  Mythiles 
  of 
  Schouherr, 
  but, 
  judging 
  from 
  the 
  description, 
  must 
  

   have 
  the 
  antenntB 
  shorter, 
  and 
  differs, 
  moreover, 
  in 
  having 
  two 
  longitudinal 
  crests 
  on 
  

   the 
  rostrum, 
  the 
  sides 
  of 
  the 
  thorax 
  much 
  produced 
  and 
  angular, 
  and 
  the 
  upper 
  sur- 
  

   face 
  with 
  two 
  high 
  crests 
  ; 
  the 
  legs 
  very 
  slender. 
  

  

  T. 
  sculpturalus 
  is 
  5| 
  lines 
  long 
  ; 
  black, 
  and 
  has 
  two 
  series 
  of 
  angular 
  tubercles 
  on 
  

   each 
  elytron, 
  the 
  hindermost 
  tubercle 
  being 
  the 
  largest 
  in 
  the 
  inner 
  series, 
  and 
  the 
  

   foremost 
  and 
  last 
  tubercles 
  of 
  the 
  outer 
  series 
  are 
  both 
  very 
  large. 
  Hab. 
  Swan 
  River. 
  

  

  Leptostethus, 
  a 
  new 
  genus 
  oi 
  Pachyrhynchidce, 
  near 
  Polyphrades 
  in 
  its 
  charac- 
  

   ters, 
  but 
  with 
  the 
  body 
  much 
  more 
  elongated, 
  and 
  the 
  anterior 
  coxae 
  separated, 
  

   leaving 
  a 
  narrow 
  chest 
  between 
  them. 
  

  

  L. 
  marginattts, 
  a 
  large 
  insect, 
  being 
  7f 
  lines 
  long,* 
  and 
  2f 
  wide 
  ; 
  much 
  elongated, 
  

   the 
  rostrum 
  very 
  broad 
  and 
  flat 
  above, 
  the 
  sides 
  of 
  the 
  body 
  nearly 
  parallel 
  : 
  black 
  ; 
  

   thorax 
  thickly 
  covered 
  with 
  small 
  glossy 
  granules 
  ; 
  elytra 
  crenato-striated 
  : 
  both 
  thorax 
  

   and 
  elytra 
  with 
  a 
  broad, 
  yellow, 
  squamose 
  band 
  at 
  the 
  sides; 
  femora 
  red, 
  with 
  the 
  

   apex 
  black. 
  

  

  L. 
  Waltoni 
  is 
  black, 
  covered 
  with 
  pale, 
  dirty 
  yellowish 
  scales 
  ; 
  has 
  the 
  femora 
  red, 
  

   the 
  rostrum 
  with 
  four 
  keels 
  ; 
  thorax 
  thickly 
  granulated 
  ; 
  elytra 
  punctato-striate, 
  the 
  

   apex 
  somewhat 
  produced 
  at 
  the 
  suture; 
  length 
  5 
  lines; 
  breadth 
  2 
  lines. 
  Both 
  spe- 
  

   cies 
  are 
  from 
  South-West 
  Africa. 
  

  

  AcHLAiNOMus, 
  new 
  genus 
  of 
  the 
  Pachyrhynchida. 
  General 
  form 
  most 
  near 
  to 
  

   Prostomus, 
  the 
  rostrum 
  wants 
  the 
  longitudinal 
  ridges 
  seen 
  in 
  that 
  genus 
  ; 
  the 
  jaws 
  

   are 
  short, 
  the 
  juinls 
  of 
  the 
  antennsB 
  rather 
  shorter, 
  the 
  thorax 
  less 
  convex 
  ; 
  the 
  elytra 
  

   shorter 
  and 
  less 
  convex, 
  separated 
  from 
  the 
  prothorax, 
  and 
  with 
  the 
  humeral 
  angles 
  

   not 
  produced 
  : 
  fore 
  tibiae 
  much 
  curved 
  and 
  very 
  strongly 
  dentated 
  within 
  ; 
  middle 
  

   and 
  hind 
  tibiae 
  dilated 
  and 
  produced 
  externally 
  and 
  internally 
  at 
  the 
  apex. 
  

  

  The 
  rostrum 
  is 
  not 
  included 
  in 
  the 
  dimensions 
  of 
  length 
  given 
  in 
  the 
  paper. 
  

  

  