﻿26G 
  rnocEEDiNGS 
  of 
  the 
  xatioxal 
  museum. 
  

  

  76. 
  MELANOPLUS 
  JUVENCUS, 
  new 
  species. 
  

  

  (Plate 
  XVIII, 
  tig. 
  1.) 
  

  

  Pezotcttix 
  piicr 
  ScrnDER! 
  (pars), 
  Proc. 
  Bost. 
  Soc. 
  Nat. 
  Hist., 
  XIX 
  (1877), 
  p. 
  87; 
  

   (pars), 
  Ent. 
  Notes, 
  VI 
  (1878), 
  p. 
  28. 
  

  

  Brownish 
  fuscous 
  with 
  a 
  ferrugiuous 
  tinge. 
  Head 
  not 
  prominent, 
  

   hiteo-testaceous 
  with 
  an 
  olivaceous 
  tinge, 
  tlecked 
  feebly 
  with 
  fuscons, 
  

   above 
  deeply 
  infuscated 
  ; 
  vertex 
  feebly 
  tumid, 
  scarcely 
  raised 
  above 
  the 
  

   level 
  of 
  the 
  pronotum, 
  the 
  interspace 
  between 
  the 
  eyes 
  no 
  wider 
  than 
  

   the 
  first 
  antennal 
  joint 
  ; 
  fasligium 
  steeply 
  declivent, 
  sulcate 
  throughout 
  ; 
  

   frontal 
  costa 
  narrow, 
  no 
  wider 
  than 
  the 
  interspace 
  between 
  the 
  eyes, 
  

   equal, 
  percurrent, 
  distinctly 
  sulcate 
  excepting 
  above, 
  punctate; 
  eyes 
  

   large, 
  prominent, 
  much 
  longer 
  than 
  the 
  infraocular 
  portion 
  of 
  the 
  geuae; 
  

   antennae 
  dull 
  luteous 
  at 
  base, 
  growing 
  rufescent 
  beyond, 
  apically 
  infus- 
  

   cated, 
  about 
  three-fifths 
  as 
  long 
  as 
  the 
  hind 
  femora. 
  Pronotum 
  sub- 
  

   equal, 
  the 
  disk 
  nearly 
  plane 
  but 
  very 
  broadly 
  tectate, 
  passing 
  by 
  an 
  

   abrupt 
  angle, 
  forming 
  a 
  distinct 
  lateral 
  carina, 
  into 
  the 
  slightly 
  tumid, 
  

   subvertical 
  lateral 
  lobes, 
  which 
  are 
  marked 
  above 
  on 
  the 
  prozona 
  by 
  an 
  

   exceptionally 
  broad 
  piceous 
  belt, 
  broader 
  on 
  the 
  anterior 
  than 
  on 
  the 
  

   posterior 
  section 
  ; 
  median 
  carina 
  equally 
  distinct 
  throughout; 
  front 
  and 
  

   hind 
  margins 
  truncate, 
  the 
  latter 
  feebly 
  emarginate 
  in 
  the 
  middle; 
  

   prozona 
  longitudinal, 
  very 
  sparsely 
  punctate, 
  almost 
  twice 
  as 
  long 
  as 
  

   the 
  tinely 
  but 
  obscurely 
  ruguloso-punctate 
  metazona. 
  Prosternal 
  spine 
  

   short, 
  lobate, 
  appressed, 
  very 
  blunt, 
  suberect; 
  interspace 
  between 
  

   mesosternal 
  lobes 
  a 
  little 
  longer 
  than 
  broad, 
  the 
  metasternal 
  lobes 
  

   approximate. 
  Tegmina 
  obovate, 
  well 
  rounded, 
  twice 
  as 
  long 
  as 
  broad, 
  

   longer 
  than 
  the 
  head 
  and 
  pronotum 
  together, 
  attingent, 
  uniform 
  dark 
  

   castaneous. 
  Fore 
  femora 
  feebly 
  tumescent 
  ; 
  hind 
  femora 
  rufo 
  luteous, 
  

   olivaceous 
  on 
  the 
  outer 
  face, 
  rather 
  broadly 
  and 
  transversely 
  bifasciate 
  

   with 
  fuscous, 
  the 
  whole 
  geuiculation 
  blackish; 
  hind 
  tibiae 
  pale, 
  rather 
  

   dingy 
  greenish, 
  with 
  a 
  lutescent 
  basal 
  annulus, 
  the 
  spines 
  black 
  almost 
  

   or 
  quite 
  to 
  the 
  base, 
  ten 
  in 
  number 
  in 
  the 
  outer 
  series. 
  Extremity 
  of 
  

   male 
  abdomen 
  slightly 
  clavate, 
  a 
  little 
  upturned, 
  the 
  supraanal 
  plate 
  

   rather 
  long 
  triangular, 
  the 
  lateral 
  margins 
  slightly 
  elevated, 
  a 
  pair 
  of 
  

   short, 
  distant, 
  apical 
  ridges, 
  and 
  the 
  median 
  sulcus 
  rather 
  deep 
  and 
  

   conspicuous 
  between 
  sharp 
  and 
  rather 
  high 
  walls 
  extending 
  beyond 
  

   the 
  middle 
  of 
  the 
  plate; 
  furcula 
  consisting 
  of 
  a 
  pair 
  of 
  slight 
  denticu. 
  

   lations 
  ovei 
  lying 
  the 
  bases 
  of 
  the 
  submedian 
  ridges 
  of 
  the 
  supraanal 
  

   plate; 
  cerci 
  long 
  and 
  rather 
  slender, 
  tapering 
  in 
  the 
  basal 
  third 
  only, 
  

   beyond 
  equal 
  nearly 
  to 
  the 
  tip, 
  which 
  is 
  rounded 
  but 
  nneiptally 
  curved, 
  

   forming 
  a 
  blunt 
  angle 
  inferiorly, 
  the 
  whole 
  fully 
  four 
  times 
  as 
  long 
  as 
  

   the 
  median 
  breadth, 
  yet 
  scarcely 
  surpassing 
  the 
  tip 
  of 
  the 
  supraanal 
  

   plate, 
  gently 
  incurved 
  apically, 
  the 
  whole 
  lower 
  margin 
  straight; 
  sub- 
  

   genital 
  plate 
  small, 
  considerably 
  longer 
  than 
  broad, 
  broader 
  at 
  base 
  

   than 
  at 
  apex, 
  the 
  apical 
  margin 
  neither 
  elevated 
  nor 
  prolonged, 
  well 
  

   rounded 
  but 
  feebly 
  ungulate, 
  eutire. 
  

  

  I 
  

  

  