﻿447 
  

  

  A 
  NEW 
  SPECIES 
  OF 
  LYGUS 
  INFESTING 
  POTATOES 
  IN 
  JAVA 
  

  

  (RHYNCHOTA, 
  CAPSIDAE). 
  

  

  By 
  W. 
  E. 
  China, 
  B.A. 
  

   Lygus 
  solani, 
  sp. 
  n. 
  

  

  Head 
  0-83 
  mm. 
  long, 
  shiny 
  orange-yellow, 
  with 
  the 
  clypeus 
  and 
  the 
  adjoining 
  

   portion 
  of 
  the 
  frons 
  shiny 
  black. 
  Eyes 
  black, 
  prominent, 
  extending 
  laterally 
  beyond 
  

   the 
  anterior 
  lateral 
  margins 
  of 
  the 
  pronotum. 
  Rostrum 
  brownish 
  black, 
  extending 
  

   to, 
  but 
  not 
  surpassing, 
  the 
  posterior 
  coxae 
  ; 
  lengths 
  of 
  the 
  joints 
  : 
  first 
  0-53 
  mm., 
  

   second 
  0-76 
  mm., 
  third 
  0-4 
  mm., 
  and 
  fourth 
  0-6 
  mm. 
  Antennae 
  brownish 
  black, 
  

   the 
  third 
  and 
  fourth 
  joints 
  somewhat 
  paler 
  ; 
  first 
  joint 
  slightly 
  incrassated, 
  length 
  

   0-83 
  mm., 
  second 
  2-0 
  mm., 
  third 
  1-83 
  mm., 
  fourth 
  1 
  mm. 
  Pronotum 
  shiny 
  orange- 
  

   yellow, 
  posteriorly 
  somewhat 
  suffused 
  with 
  dark 
  brown 
  ; 
  length 
  in 
  middle 
  1 
  - 
  4 
  mm., 
  

   breadth 
  at 
  anterior 
  margin 
  0-8 
  mm., 
  at 
  posterior 
  margin 
  2-0 
  mm. 
  ; 
  sides 
  straight, 
  

   posterior 
  margin 
  moderately 
  convex. 
  Scutellum 
  shiny 
  black, 
  finely 
  rugosely 
  punctate 
  

   and 
  regularly 
  covered 
  with 
  pale 
  depressed 
  hairs; 
  length 
  in 
  the 
  middle 
  1-3 
  mm. 
  

   Corium 
  and 
  cuneus 
  similar 
  in 
  colour 
  and 
  pilosity 
  to 
  the 
  scutellum 
  ; 
  membrane 
  dark 
  

   smoky 
  brown, 
  veins 
  shiny 
  black, 
  passing 
  the 
  apex 
  of 
  the 
  abdomen. 
  Sternum 
  : 
  

   mesostethium 
  and 
  metastethium 
  black, 
  the 
  metastethial 
  orifices 
  and 
  the 
  surrounding 
  

   areas 
  very 
  pale 
  yellow 
  : 
  undersides 
  of 
  abdomen 
  shiny 
  black, 
  covered 
  with 
  very 
  fine 
  

   pale 
  hairs. 
  Legs 
  : 
  coxae 
  blackish 
  brown 
  ; 
  femora 
  dirty 
  orange-yellow, 
  suffused 
  

   at 
  base 
  and 
  apex 
  with 
  brown 
  ; 
  tibiae 
  dark 
  brown, 
  armed 
  with 
  fine 
  black 
  spines 
  ; 
  

   tarsi 
  black, 
  strongly 
  pilose. 
  

  

  Length, 
  including 
  membrane, 
  6-5 
  mm. 
  

  

  Java 
  : 
  Dapet 
  di 
  pohon, 
  Kentang, 
  Lembang, 
  3 
  $$, 
  10.viii.1922 
  (P. 
  van 
  der 
  Goot). 
  

  

  Type 
  in 
  the 
  British 
  Museum. 
  

  

  Infesting 
  the 
  leaves 
  and 
  young 
  shoots 
  of 
  potato 
  plants. 
  

  

  