﻿Mr. 
  W. 
  L. 
  Distant 
  on 
  Pentatomidse. 
  353 
  

  

  passing 
  abdominal 
  apex, 
  the 
  venation 
  longitudinal, 
  with 
  a 
  

   distinct 
  transverse 
  cell 
  at 
  base 
  ; 
  rostrum 
  reaching 
  the 
  poste- 
  

   rior 
  coxae, 
  first 
  joint 
  almost 
  reaching 
  base 
  of 
  head, 
  second 
  

   passing 
  anterior 
  coxae, 
  third 
  not 
  quite 
  reaching 
  intermediate 
  

   coxae; 
  sternum 
  centrally, 
  finely, 
  longitudinally 
  carinate, 
  

   becoming 
  considerably 
  prominent 
  on 
  the 
  metasternum 
  ; 
  

   abdomen 
  only 
  moderately 
  convex, 
  spiracles 
  on 
  basal 
  segment 
  

   exposed, 
  distinctly 
  visible, 
  central 
  base 
  slightly 
  roundly 
  pro- 
  

   duced, 
  but 
  not 
  reaching 
  posterior 
  coxa?, 
  apical 
  angles 
  of 
  

   sixth 
  segment 
  (in 
  <J 
  ) 
  distinctly 
  produced, 
  apical 
  angles 
  of 
  

   anal 
  segment 
  strongly, 
  broadly, 
  angularly 
  produced, 
  central 
  

   apical 
  margin 
  of 
  sixth 
  segment 
  truncate 
  ; 
  tarsi 
  three-jointed. 
  

   By 
  the 
  elongate 
  scutellum 
  this 
  genus 
  should 
  represent 
  a 
  

   new 
  division 
  among 
  the 
  first 
  four 
  enumerated 
  by 
  Horvath 
  

   (1000) 
  in 
  his 
  table 
  of 
  divisions 
  in 
  the 
  Tessaratomina? 
  ; 
  it 
  is 
  

   the 
  third 
  genus 
  of 
  the 
  subfamily 
  at 
  present 
  recorded 
  from 
  

   the 
  Neotropical 
  Region. 
  

  

  Janeirona 
  insignis, 
  sp. 
  n. 
  

  

  Black 
  a 
  spot 
  at 
  lateral 
  angles 
  of 
  pronotum, 
  a 
  transverse 
  

   spot 
  at 
  base 
  and 
  a 
  small 
  discal 
  spot 
  beyond 
  middle 
  of 
  corium, 
  

   legs 
  and 
  rostrum 
  ochraceous 
  ; 
  basal 
  longitudinal 
  disk 
  of 
  

   abdomen 
  beneath 
  testaceous; 
  'antennas 
  distinctly 
  palely 
  

   pilose; 
  head 
  more 
  or 
  less 
  transversely 
  wrinkled; 
  ocelli 
  

   sanguineous 
  ; 
  pronotum 
  and 
  scutellum 
  somewhat 
  thickly 
  

   finely 
  punctate, 
  the 
  latter 
  with 
  two 
  obscure 
  central 
  longi- 
  

   tudinal 
  raised 
  lines 
  on 
  the 
  apical 
  area 
  ; 
  corium 
  thickly 
  finely 
  

   punctate; 
  all 
  the 
  ochraceous 
  spots 
  impunctate 
  ; 
  body 
  beneath 
  

   more 
  or 
  less 
  thickly 
  finely 
  punctate; 
  tarsi 
  pale 
  ochraceous, 
  

   longly 
  pilose; 
  other 
  structural 
  characters 
  as 
  in 
  generic 
  

   diagnosis. 
  

  

  Long., 
  $ 
  , 
  19 
  mm. 
  ; 
  exp. 
  pronot, 
  angl. 
  8 
  mm. 
  

  

  Hab. 
  Fifty 
  miles 
  west 
  of 
  Rio 
  Janeiro, 
  1000-1200 
  feet 
  (Sir 
  

   Wm. 
  Smith, 
  Brit. 
  Mus.). 
  

  

  Genus 
  Megymenum. 
  

   Megymemim, 
  Laporte, 
  Ess. 
  Hem. 
  p. 
  52 
  (1832). 
  

   Type, 
  M. 
  dentatum, 
  Boisd. 
  

  

  'Megymenum 
  pratti, 
  sp. 
  n. 
  

  

  Fuscous 
  brown, 
  more 
  or 
  less 
  palely 
  pilose 
  ; 
  membrane 
  pale 
  

   ochraceous 
  ; 
  head 
  above 
  concave, 
  before 
  eves 
  with 
  a 
  some- 
  

   what 
  longly 
  acute 
  lateral 
  spine 
  directed 
  both 
  a 
  little 
  up- 
  

   wardly 
  and 
  backwardly 
  ; 
  antenna: 
  fuscous 
  brown, 
  the 
  apical 
  

  

  