﻿Mr. 
  Gr. 
  J. 
  Arrow 
  on 
  Lamellicorn 
  Beetles. 
  39o 
  

  

  one 
  of 
  the 
  spurs 
  (and 
  occasionally 
  two) 
  has 
  a 
  similar 
  struc- 
  

   ture. 
  The 
  front 
  tibial 
  spur 
  is 
  not 
  absent, 
  as 
  stated 
  by 
  

   Mr. 
  Semenow, 
  but 
  is 
  slender 
  and 
  inconspicuous. 
  

  

  Herr 
  Carl 
  Felsche 
  has 
  sent 
  me 
  a 
  pair 
  of 
  a 
  new 
  and 
  peculiar 
  

   insect 
  of 
  this 
  subfamily 
  for 
  which 
  it 
  seems 
  necessary 
  to 
  form 
  

   a 
  new 
  genus. 
  It 
  is 
  an 
  Orphnus 
  with 
  certain 
  peculiarities 
  

   which 
  separate 
  it 
  sharply 
  from 
  all 
  others. 
  Chief 
  of 
  these 
  is 
  

   the 
  shape 
  of 
  the 
  mandibles, 
  which 
  have 
  an 
  abrupt 
  lateral 
  

   angulation 
  and 
  are 
  nearly 
  straight 
  in 
  front 
  and 
  at 
  the 
  side, 
  

   whereas 
  in 
  Orphnus 
  they 
  are 
  always 
  regularly 
  rounded 
  exter- 
  

   nally. 
  The 
  transverse 
  carina 
  upon 
  the 
  head 
  of 
  the 
  female 
  is 
  

   also 
  characteristic, 
  as 
  is 
  the 
  form 
  of 
  the 
  thorax 
  of 
  the 
  male. 
  

   This 
  is 
  formed 
  very 
  much 
  as 
  in 
  many 
  small 
  species 
  of 
  Copris. 
  

   It 
  is 
  not 
  excavated 
  in 
  the 
  middle, 
  but 
  very 
  convex, 
  armed 
  

   with 
  four 
  conical 
  processes 
  and 
  almost 
  vertically 
  truncated 
  in 
  

   front. 
  

  

  I 
  propose 
  to 
  call 
  the 
  genus 
  

  

  GONIORPHNUS, 
  gen. 
  nov. 
  

  

  Corpus 
  crassum, 
  convexum. 
  Mandibula 
  extus 
  rectangula 
  lateraliter 
  

   et 
  antice 
  fere 
  recta, 
  angulo 
  sat 
  acuto, 
  paulo 
  recurvo. 
  Clypeus 
  

   brevis, 
  late 
  arcuatus, 
  lateribus 
  obtuse 
  angulatis, 
  paulo 
  recurvatis. 
  

  

  6 
  , 
  clypeus 
  antice 
  cornu 
  gracili, 
  marginali 
  arraatus 
  ; 
  pronotum 
  

   antice 
  truneatum, 
  haud 
  excavatum. 
  

  

  9 
  , 
  clypeus 
  muticus, 
  a 
  fronte 
  carina 
  lata, 
  acute 
  elevata, 
  divisus. 
  

  

  Alia 
  ut 
  in 
  genere 
  Orphno. 
  

  

  Goniorphnus 
  felschei, 
  sp. 
  n. 
  

  

  Niger 
  vel 
  nigro-piceus, 
  nitidus, 
  convexus, 
  latus 
  ; 
  prothorace 
  toto 
  

   marginato, 
  utrinque 
  grosse 
  sat 
  parce 
  punctato 
  ; 
  elytris 
  laevibus, 
  

   disco 
  leviter 
  sulcato, 
  sulcis 
  haud 
  profunde 
  irregulariter 
  annulato- 
  

   punctatis, 
  extus 
  irregulariter 
  fere 
  rugose 
  punctatis 
  ; 
  tibiis 
  anticis 
  

   fortiter 
  tridentatis 
  : 
  

  

  d 
  , 
  capite 
  iinpunctato, 
  margine 
  antico 
  cornu 
  gracili 
  erecto 
  paulo 
  

   deplanato, 
  haud 
  acuminato, 
  munito 
  ; 
  prothorace 
  politissimo, 
  

   lateribus 
  grosse 
  punctatis, 
  dorso 
  convexo, 
  dentibus 
  4 
  validis, 
  

   conicis, 
  fere 
  aequidistantibns, 
  oblique 
  ahtrorsum 
  directis, 
  serie 
  

   transverso 
  munito, 
  antice 
  medio 
  fere 
  perpendiculariter 
  retuso, 
  

   utrinque 
  paulo 
  excavato 
  : 
  

  

  2 
  , 
  clypeo 
  indistincte 
  punctulato, 
  a 
  froute 
  carina 
  lata 
  paulo 
  arcuata 
  

   divisa, 
  vertice 
  sat 
  crebre 
  transverse 
  punctato 
  ; 
  prothorace 
  sub- 
  

   tiliter 
  punctulato, 
  punctis 
  majoribus 
  lateralibus 
  nonnullisque 
  

   medianis 
  sparsuto. 
  

  

  Long. 
  IO-H'5 
  mm. 
  ; 
  lat. 
  max. 
  5-6 
  mm. 
  

  

  Bab. 
  French 
  Congo 
  : 
  Kuilu 
  {Mocquerys, 
  1892). 
  

  

  26* 
  

  

  