﻿Genera 
  and 
  Species 
  of 
  Trichopterygidas. 
  189 
  

  

  generically 
  distinct 
  ; 
  the 
  males, 
  except 
  that 
  their 
  elytra 
  are 
  

   slightly 
  truncate 
  at 
  the 
  extremities, 
  resemble 
  Ptenidium 
  or 
  

   Camptodium, 
  while 
  the 
  females, 
  with 
  short 
  elytra 
  and 
  elon- 
  

   gate 
  abdomen, 
  look 
  like 
  Ptinella. 
  Of 
  the 
  sixteen 
  new 
  species 
  

   eight 
  have 
  been 
  discovered 
  by 
  the 
  researches 
  of 
  Herr 
  E. 
  

   Keitter 
  ; 
  two 
  only 
  are 
  British, 
  and 
  the 
  rest 
  come 
  from 
  various 
  

   parts 
  of 
  the 
  world 
  and 
  from 
  many 
  different 
  collectors. 
  

  

  Mikado, 
  gen. 
  nov. 
  

  

  Corpus 
  obconicum, 
  postice 
  valde 
  attenuatum, 
  convexum. 
  

  

  Caput 
  sat 
  maguum, 
  antice 
  valde 
  elongatum, 
  rostrit'orme, 
  fortiter 
  

  

  deflexum. 
  

   Ante 
  mice 
  inodicse, 
  11-articulatao, 
  clava 
  biarticulata. 
  

   Palpi 
  maxillares 
  parvi, 
  gracillimi, 
  4-articulati. 
  

   Palpi 
  labiales 
  sat 
  inagni, 
  triarticulati, 
  nionilii'ormes, 
  setis 
  longis 
  ad 
  

  

  apices 
  instructi. 
  

   Labrum 
  magnum, 
  suboblongum. 
  

   Mandibulce 
  sat 
  august*, 
  apicibus 
  bidenticulatis. 
  

   Maxillce 
  magna?, 
  robustae, 
  quasi 
  trilobatae, 
  lobo 
  interiore 
  elongato, 
  ad 
  

  

  apicem 
  dentibus 
  curvatis, 
  aeutissimis 
  armato. 
  

   Mentum 
  modicum, 
  fere 
  quadratum. 
  

   Labium 
  suboblongum, 
  ad 
  apicem 
  in 
  processu 
  paraglossali 
  longo, 
  

  

  acuto, 
  divergente 
  utrinque 
  productum. 
  

   Lingua 
  parva, 
  apice 
  bitido. 
  

   Pronotum 
  magnum, 
  ad 
  basim 
  latissimum, 
  angulis 
  posterioribus 
  

  

  maribus 
  parum 
  productis. 
  

   Scutellum 
  late 
  r-riangulare. 
  

   Elytra 
  elongata, 
  apicibus 
  oblique 
  truncatis. 
  

   Alee 
  lanceolataa 
  setis 
  marginalibus 
  praelongis 
  instruct*. 
  

   Venter 
  segmentis 
  sex 
  compositus 
  apicali 
  integro. 
  

   Pedes 
  sat 
  breves, 
  graciles 
  ; 
  tarsis 
  triarticulatis, 
  coxis 
  posterioribus 
  

  

  late 
  lamiuatis, 
  fere 
  coutingentibus. 
  

  

  This 
  genus 
  is 
  allied 
  to 
  Myrmicotrichis, 
  but 
  distinguished 
  

   from 
  that 
  and 
  from 
  all 
  other 
  genera 
  by 
  its 
  rostriform 
  head. 
  

  

  Mikado 
  japonicus^ 
  sp. 
  nov. 
  

  

  L. 
  c. 
  0*50 
  mm. 
  Obconicus, 
  elongatus, 
  postice 
  validissime 
  attenua- 
  

   tus, 
  nitidus, 
  flavus, 
  pilis 
  brevibus 
  aureis 
  vestitus 
  ; 
  capite 
  magno, 
  

   antice 
  rostriformi, 
  oculis 
  nigris, 
  valde 
  prominentibus 
  ; 
  pronoto 
  

   sat 
  magno, 
  ad 
  basim 
  latissimo, 
  glabro, 
  nitidissimo 
  ; 
  elytris 
  ad 
  

   bumeros 
  latissimis, 
  postice 
  valde 
  attenuatis, 
  remote 
  asperatis, 
  api- 
  

   cibus 
  oblique 
  truncatis 
  ; 
  abdominis 
  segmentis 
  duobus 
  apertis 
  ; 
  

   pedibus 
  atque 
  antennis 
  brevibus, 
  llavis. 
  

  

  This 
  interesting 
  species 
  was 
  found 
  by 
  Mr. 
  Lewis 
  near 
  Yu- 
  

   yama, 
  Higo, 
  Japan. 
  From 
  the 
  anatomy 
  of 
  its 
  mouth 
  Mikado 
  

   Ann. 
  & 
  Mag. 
  N. 
  Hist. 
  Ser. 
  6. 
  Vol. 
  iii. 
  14 
  

  

  