﻿140 
  

  

  F. 
  MUIR. 
  

  

  Delphacodes 
  nigeriensis, 
  sp. 
  nov. 
  (fig. 
  1). 
  

  

  <J. 
  Macropterous 
  ; 
  liead 
  slightly 
  narrower 
  than 
  pronotum, 
  vertex 
  as 
  long 
  as 
  base 
  

   is 
  wide, 
  which 
  is 
  slightly 
  broader 
  than 
  apex, 
  base 
  slightly 
  behind 
  the 
  middle 
  of 
  eyes 
  ; 
  

   first 
  joint 
  of 
  antennae 
  more 
  than 
  half 
  the 
  length 
  of 
  second 
  (1 
  to 
  1*7) 
  ; 
  lateral 
  carinae 
  

   of 
  pronotum 
  slightly 
  divergingly 
  curved, 
  not 
  reaching 
  to 
  the 
  hind 
  margin 
  ; 
  first 
  

   joint 
  of 
  hind 
  tarsus 
  equal 
  to 
  the 
  other 
  two 
  together. 
  

  

  Fig. 
  1. 
  Dicranotropis 
  nigeriensis, 
  Muir, 
  sp. 
  n. 
  ; 
  

   a, 
  aedeagus, 
  lateral 
  view 
  ; 
  b, 
  right 
  genital 
  style. 
  

  

  Face 
  and 
  clypeus 
  between 
  carinae 
  black, 
  carinae 
  light 
  brown 
  ; 
  antennae, 
  vertex, 
  

   thorax 
  and 
  legs 
  ochraceous 
  tawny, 
  abdomen 
  dark 
  brown. 
  Tegmina 
  hyaline, 
  very 
  

   light 
  yellowish, 
  veins 
  darker, 
  with 
  sparse 
  minute 
  granules. 
  

  

  Pygofer 
  similar 
  in 
  outline 
  to 
  that 
  of 
  D. 
  disonymus 
  (Kirk.), 
  and 
  the 
  genital 
  styles 
  

   somewhat 
  similar, 
  aedeagus 
  distinct, 
  figured 
  from 
  the 
  right 
  side 
  (figure 
  1,«) 
  ; 
  the 
  

   left 
  side 
  with 
  a 
  row 
  of 
  small 
  spines 
  from 
  a 
  dorso-apical 
  point 
  to 
  the 
  middle 
  ; 
  anal 
  

   styles 
  not 
  so 
  large 
  as 
  in 
  D. 
  disonymus, 
  curved 
  and 
  slightly 
  flattened, 
  bases 
  moderately 
  

   wide 
  apart. 
  

  

  Length, 
  1*8 
  mm. 
  ; 
  tegmen, 
  2 
  mm. 
  

  

  Nigeria 
  : 
  Oloke-Meji, 
  Ibadan, 
  1914 
  (J. 
  C. 
  Bridwell). 
  

  

  Described 
  from 
  one 
  male 
  specimen. 
  I 
  consider 
  this 
  to 
  come 
  near 
  to 
  D. 
  disonymos 
  

   (Kirk.), 
  and 
  it 
  is 
  very 
  probable 
  that 
  there 
  is 
  a 
  short-winged 
  form 
  in 
  which 
  the 
  

   tegmina 
  are 
  dark 
  shiny 
  black. 
  

  

  Delphacodes 
  bridwelli, 
  sp. 
  nov. 
  (fig. 
  2). 
  

  

  (J. 
  Macropterous 
  ; 
  head 
  nearly 
  as 
  broad 
  as 
  pronotum, 
  width 
  (including 
  eyes] 
  

   twice 
  the 
  length 
  ; 
  vertex 
  square, 
  base 
  about 
  middle 
  of 
  eye 
  ; 
  length 
  of 
  face 
  slightly 
  

   more 
  than 
  twice 
  the 
  width, 
  slightly 
  narrowed 
  between 
  eyes 
  and 
  at 
  apex 
  ; 
  antennae 
  

   reaching 
  slightly 
  beyond 
  the 
  base 
  of 
  clypeus, 
  first 
  joint 
  about 
  half 
  the 
  length 
  of 
  

  

  Fig. 
  2. 
  Delphacodes 
  bridwelli, 
  Muir, 
  sp. 
  n. 
  ; 
  

   a, 
  aedeagus, 
  lateral 
  view; 
  b, 
  right 
  genital 
  style. 
  

  

  second 
  ; 
  lateral 
  pronotal 
  carinae 
  divergingly 
  curved, 
  not 
  reaching 
  hind 
  margin 
  ; 
  

   hind 
  tibiae 
  equal 
  in 
  length 
  to 
  tarsi, 
  first 
  joint 
  of 
  tarsus 
  equal 
  to 
  the 
  other 
  two 
  together. 
  

   Light 
  brown 
  ; 
  black 
  or 
  dark 
  brown 
  between 
  carinae 
  of 
  face 
  and 
  clypeus 
  and 
  over 
  

   thoracic 
  pleura, 
  coxae 
  and 
  abdomen. 
  Tegmina 
  hyaline, 
  very 
  light 
  brown, 
  veins 
  

   darker 
  ; 
  wings 
  hyaline, 
  veins 
  brown. 
  

  

  