﻿32 
  rROCEEDINdS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.xx 
  

  

  9. 
  RHABDOTETTIX, 
  new 
  genus. 
  

  

  {fjdj^do';, 
  a 
  stick; 
  rerriq, 
  grasshopper.) 
  

   J'draidetnona 
  (pars) 
  I')1;txne1{, 
  1\ov. 
  Syst. 
  Orth. 
  (189:^), 
  p. 
  145. 
  

  

  Body 
  ]nore 
  or 
  less 
  pilose, 
  of 
  inucli 
  the 
  same 
  slia|)e 
  as 
  in 
  Paraidemoiia, 
  

   at 
  least 
  in 
  the 
  male; 
  that 
  of 
  the 
  female 
  differs 
  only 
  in 
  being 
  a 
  little 
  

   shorter. 
  Head 
  not 
  prominent, 
  not 
  wider 
  inclnding 
  the 
  eyes 
  than 
  the 
  

   broade.^t 
  part 
  of 
  the 
  pronotum; 
  vertex 
  very 
  feebly 
  arched, 
  scarcely 
  

   elevated 
  above 
  the 
  level 
  of 
  the 
  ijronotum 
  and 
  in 
  the 
  male 
  not 
  above 
  

   that 
  of 
  the 
  eyes, 
  the 
  fastigiuin 
  rather 
  rapidly 
  decliveut, 
  narrow 
  (female) 
  

   or 
  very 
  narrow 
  (male) 
  between 
  the 
  eyes, 
  broadening 
  in 
  front, 
  sulcatc 
  

   between 
  the 
  eyes 
  in 
  the 
  female, 
  throughout 
  in 
  the 
  male; 
  frontal 
  costa 
  

   contracted 
  only 
  at 
  the 
  extreme 
  summit, 
  elsewhere 
  equal, 
  broader 
  than 
  

   the 
  interspace 
  between 
  the 
  eyes 
  but 
  not 
  very 
  broad, 
  slightly 
  sulcate; 
  

   eyes 
  moderately 
  i)romiuent 
  in 
  the 
  male, 
  much 
  larger 
  than 
  (male) 
  or 
  about 
  

   as 
  large 
  as 
  (female) 
  the 
  whole 
  infraocular 
  portion 
  of 
  the 
  genae; 
  antennae 
  

   rather 
  slender, 
  fully 
  half 
  as 
  long 
  as 
  the 
  body 
  (male) 
  or 
  simply 
  longer 
  

   than 
  head 
  and 
  pronotum 
  together 
  (female). 
  Pronotum 
  very 
  slightly 
  

   (male) 
  or 
  distinctly 
  (female) 
  enlarging 
  from 
  in 
  front 
  backward, 
  the 
  front 
  

   margin 
  not 
  in 
  the 
  least 
  flaring 
  to 
  receive 
  the 
  head, 
  the 
  hind 
  margin 
  

   biconvexly 
  truncate, 
  being 
  slightly 
  emarginate 
  in 
  the 
  middle 
  with 
  very 
  

   broadly 
  convex 
  halves, 
  more 
  distinct 
  in 
  the 
  female 
  than 
  in 
  the 
  male: 
  

   disk 
  nearly 
  plane, 
  but 
  very 
  broadly 
  convex 
  transversely, 
  with 
  well 
  

   rounded 
  angles 
  in 
  passing 
  into 
  the 
  vertical 
  lateral 
  lobes, 
  and 
  a 
  very 
  

   feeble, 
  blunt, 
  median 
  carina; 
  prozona 
  about 
  twice 
  as 
  long 
  as 
  the 
  meta- 
  

   zona, 
  sparsely 
  punctate 
  especially 
  in 
  the 
  female, 
  the 
  metazoua 
  densely 
  

   punctate, 
  the 
  transverse 
  sulci 
  of 
  the 
  former 
  much 
  as 
  in 
  Sinaloa, 
  but 
  

   slightly 
  more 
  distant. 
  Prosternal 
  spine 
  short, 
  erect, 
  conical; 
  mes 
  »- 
  

   sternal 
  lobes 
  separated 
  by 
  an 
  interval 
  which 
  is 
  distinctly 
  longer 
  than 
  

   broad 
  in 
  the 
  male, 
  subquadrate 
  in 
  the 
  female, 
  the 
  metasternal 
  lobes 
  

   contiguous 
  or 
  subcontiguous 
  (male) 
  or 
  moderately 
  distant 
  (female). 
  

   Tegmina 
  ellii)tical, 
  lateral, 
  about 
  as 
  long 
  as 
  the 
  prozona. 
  Fore 
  and 
  

   middle 
  femora 
  disitinctly 
  tumid 
  in 
  the 
  male; 
  hind 
  femora 
  short 
  and 
  

   moderately 
  stout, 
  the 
  hind 
  tibiae 
  with 
  8-11, 
  generally 
  9, 
  spines 
  in 
  the 
  

   outer 
  series. 
  Extremity 
  of 
  the 
  male 
  abdomen 
  subclavate, 
  upturned, 
  

   the 
  margin 
  of 
  the 
  subgenital 
  plate 
  with 
  no 
  basal 
  ampliation, 
  straight 
  

   or 
  very 
  feebly 
  sinuate, 
  the 
  apex 
  rounded 
  and 
  not 
  angulate, 
  protruding 
  

   beyond 
  the 
  tip 
  of 
  the 
  supraanal 
  plate 
  by 
  less 
  than 
  half 
  the 
  length 
  of 
  

   the 
  latter; 
  furcula 
  .consisting 
  of 
  a 
  pair 
  of 
  exceptionally 
  broad 
  lobes 
  

   scarcely 
  protruding 
  beyond 
  the 
  margin 
  of 
  the 
  last 
  dorsal 
  segment; 
  

   cerci 
  compressed, 
  moderately 
  broad, 
  subequal 
  and 
  arcuate 
  or 
  subarcufite. 
  

  

  Ii. 
  palmeri 
  maybe 
  taken 
  as 
  the 
  type. 
  

  

  The 
  genus 
  is 
  known 
  only 
  from 
  Texas 
  and 
  Mexico, 
  where 
  three 
  species 
  

   occur. 
  

  

  ANALYTICAL 
  KEY 
  TO 
  TIU; 
  Sl'lXIKS 
  OF 
  lUIAHDOTETTIX. 
  

  

  A'. 
  Sides 
  of 
  the 
  (lisl< 
  of 
  the 
  pronotum 
  with 
  a 
  narrow 
  hght 
  colored 
  stripe, 
  rarely 
  

   iudistiiignishahlc 
  from 
  the 
  rest 
  of 
  the 
  disk, 
  followed, 
  ou 
  the 
  upper 
  portion 
  of 
  the 
  

   lateral 
  lobes, 
  by 
  a 
  broad 
  dark 
  stripe; 
  cerci 
  of 
  male 
  not 
  narrowed 
  before 
  the 
  middle. 
  

  

  