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

  

  evanescens. 
  Oculi 
  laterales, 
  oblongi, 
  modice 
  convex!. 
  Thorax 
  

   transversus, 
  antice 
  dimidio 
  angustior 
  quam 
  basi, 
  apice 
  rotun- 
  

   dato-emarginatus, 
  infra 
  pone 
  gulam 
  emarginatus, 
  lateribiis 
  

   » 
  obliquis-rotundatis, 
  basi 
  rotundato-sub-productus 
  ; 
  supra 
  

   convexus. 
  Scutellum 
  minutissimum. 
  Elytra 
  ovata, 
  basi 
  

   conjunctim 
  rotundato-emarginata, 
  thoracis 
  basi 
  parum 
  latiora, 
  

   apice 
  acuminata. 
  Pedes 
  mediocres 
  ; 
  tarsi 
  articulo 
  prime 
  

   latiore, 
  unguiculis 
  parvis, 
  basi 
  connatis, 
  ad 
  apicem 
  vix 
  diver- 
  

   gentibus. 
  Corpus 
  breviter 
  ovatum, 
  convexum, 
  squamosum, 
  

   minoris 
  magnitudinis. 
  

   The 
  form 
  of 
  the 
  insect 
  upon 
  which 
  this 
  genus 
  is 
  founded 
  is 
  

   almost 
  a 
  perfect 
  oval, 
  for 
  the 
  elytra 
  at 
  the 
  base 
  are 
  but 
  little 
  

   broader 
  than 
  the 
  thorax, 
  and 
  the 
  outline 
  of 
  the 
  two 
  is 
  nearly 
  con- 
  

   tinuous. 
  The 
  rostrum 
  is 
  about 
  equal 
  to 
  the 
  head 
  and 
  thorax 
  in 
  

   length, 
  and 
  moderate 
  as 
  to 
  thickness. 
  The 
  basal 
  half 
  is 
  nearly 
  

   straight 
  ; 
  but 
  the 
  terminal 
  half 
  is 
  bent 
  down 
  so 
  as 
  to 
  form 
  aa 
  

   obtuse 
  angle, 
  at 
  least 
  on 
  the 
  upper 
  surface, 
  and 
  at 
  this 
  point 
  is 
  

   the 
  base 
  of 
  the 
  small 
  antennal 
  groove 
  which 
  here 
  opens 
  upwards; 
  

   the 
  remaining 
  portion 
  is 
  continued 
  backwards 
  towards 
  the 
  eye, 
  on 
  

   the 
  side, 
  but 
  close 
  to 
  the 
  upper 
  edge 
  of 
  the 
  rostrum. 
  It 
  is 
  very 
  

   indistinct 
  (excepting 
  quite 
  at 
  the 
  origin), 
  filled 
  with 
  scales, 
  and 
  

   cannot 
  serve 
  to 
  lodge 
  the 
  scape 
  of 
  the 
  antennae. 
  Between 
  the 
  

   two 
  oblong 
  fovese 
  in 
  which 
  the 
  antennae 
  are 
  inserted 
  is 
  an 
  elon- 
  

   gated 
  triangular 
  plate, 
  which 
  has 
  the 
  apex 
  slightly 
  raised 
  and 
  

   directed 
  towards 
  the 
  head. 
  In 
  front 
  of 
  this 
  part 
  the 
  rostrum 
  is 
  

   acutely 
  margined 
  on 
  each 
  side 
  ; 
  the 
  upper 
  surface 
  is 
  flat, 
  with 
  an 
  

   obtuse 
  ridge 
  towards 
  the 
  apex, 
  and 
  the 
  under 
  part 
  rounded. 
  The 
  

   basal 
  half 
  has 
  a 
  slightly 
  elevated 
  keel 
  ; 
  scales 
  cover 
  the 
  whole 
  

   upper 
  part, 
  excepting 
  quite 
  at 
  the 
  point, 
  whilst 
  the 
  sides 
  and 
  

   under 
  part 
  are 
  denuded, 
  rounded 
  and 
  smooth. 
  There 
  are 
  only 
  

   two 
  other 
  points 
  to 
  which 
  I 
  will 
  call 
  particular 
  attention. 
  One 
  is 
  

   the 
  large 
  size 
  of 
  the 
  basal 
  joint 
  of 
  the 
  tarsus, 
  this 
  joint 
  being 
  

   larger 
  and 
  even 
  more 
  dilated 
  than 
  the 
  penultimate 
  joint; 
  the 
  

   other 
  is 
  furnished 
  by 
  the 
  claws, 
  which 
  are 
  so 
  closely 
  united 
  as 
  to 
  

   appear 
  to 
  form 
  only 
  a 
  single 
  claw; 
  but 
  under 
  a 
  strong 
  lens, 
  the 
  

   extreme 
  points 
  are 
  seen 
  to 
  be 
  separated. 
  

  

  Synaplonyx 
  ovatus. 
  

   Breviter 
  ovatus, 
  convexus, 
  niger, 
  squamulis 
  cinereo-albidis 
  

   tectus 
  ; 
  antennis, 
  articuloque 
  ultimo 
  tarsorum 
  ferrugineis 
  ; 
  

   rostro 
  piceo, 
  supra 
  albido-squamoso, 
  subtiliter 
  punctulato, 
  

   basi 
  carinato, 
  apice 
  utrinque 
  sub-elevato-marginato, 
  supra 
  os 
  

   obtuse 
  carinato; 
  fronte 
  linea 
  longitudinaliter 
  impressa, 
  notato; 
  

   thorace 
  subtilissirae 
  punctulato, 
  parce 
  squamoso 
  ; 
  elytris 
  

  

  