﻿NO. 
  1124. 
  BEnSIOX 
  OF 
  THE 
  MELAXOPLI—SCUDDER. 
  27 
  

  

  6. 
  BARYTETTIX, 
  new 
  genus. 
  

   {fiapvi, 
  heavy; 
  rerriq, 
  grassli02>per.) 
  

  

  Body 
  heavy, 
  moderately 
  compressed, 
  thinly 
  pilose. 
  Head 
  large, 
  

   moderately 
  prominent, 
  the 
  vertex 
  gently 
  convex, 
  not 
  raised 
  above 
  the 
  

   level 
  of 
  the 
  pronotiim, 
  the 
  fastigium 
  descending 
  with 
  moderate 
  rapidity 
  

   and 
  the 
  face 
  retreating 
  slightly; 
  eyes 
  very 
  large, 
  moderately 
  promi- 
  

   nent, 
  about 
  equally 
  so 
  in 
  the 
  two 
  sexes, 
  broadly 
  ovate 
  in 
  the 
  male, 
  

   elliptical 
  in 
  the 
  female, 
  mucli 
  longer 
  than 
  the 
  infraocular 
  ])ortion 
  of 
  the 
  

   genae; 
  interspace 
  between 
  the 
  eyes 
  narrow, 
  especially 
  in 
  the 
  male, 
  the 
  

   fastigium 
  sulcate 
  throughout, 
  widening 
  considerably 
  beyond, 
  the 
  

   frontal 
  costa 
  relatively 
  broad, 
  considerably 
  broader 
  than 
  the 
  interspace 
  

   between 
  the 
  eyes; 
  antennae 
  not 
  very 
  slender, 
  long, 
  half 
  as 
  long 
  as 
  the 
  

   body 
  in 
  the 
  male. 
  Pronotum 
  short, 
  subequal, 
  widening 
  slightly 
  at 
  the 
  

   metazona, 
  the 
  front 
  nuirgin 
  truncate 
  and 
  laterally 
  plicate, 
  the 
  liind 
  

   margin 
  truncate 
  and 
  emargiuate, 
  its 
  dorsum 
  gently 
  convex, 
  passing 
  

   insensibly 
  into 
  the 
  vertical 
  lateral 
  lobes, 
  a 
  feeble 
  percurrent 
  median 
  

   carina; 
  prozona 
  transverse, 
  especially 
  in 
  the 
  female, 
  sparsely 
  punctate, 
  

   slightly 
  less 
  than 
  twice 
  as 
  long 
  as 
  the 
  densely 
  punctate 
  metazona, 
  

   crossed 
  in 
  the 
  middle 
  by 
  a 
  distinct 
  transverse 
  sulcus, 
  followed 
  at 
  less 
  

   than 
  half 
  the 
  distance 
  to 
  the 
  metazona 
  by 
  a 
  similar 
  angulato-arcuate 
  

   sulcus. 
  Prosternal 
  spine 
  bluntly 
  conical, 
  erect; 
  interspace 
  between 
  

   mesosternal 
  lobes 
  twice 
  as 
  long 
  as 
  broad 
  in 
  the 
  male, 
  subquadrate 
  and 
  

   nearly 
  as 
  broad 
  as 
  the 
  lobes 
  in 
  the 
  female, 
  the 
  metasternal 
  lobes 
  rather 
  

   distant 
  in 
  the 
  male, 
  approximate 
  in 
  the 
  female. 
  Tegmina 
  elliptical, 
  

   about 
  as 
  long 
  as 
  the 
  prozona. 
  Fore 
  and 
  middle 
  femora 
  very 
  tumid 
  in 
  

   the 
  male; 
  hind 
  femora 
  short 
  and 
  moderately 
  stout; 
  hind 
  ti))iae 
  with 
  

   nine 
  to 
  ten 
  spines 
  in 
  the 
  outer 
  series. 
  Extremity 
  of 
  the 
  male 
  abdomen 
  

   subclavate, 
  but 
  with 
  the 
  subgenital 
  plate 
  so 
  produced 
  posteriorly 
  as 
  to 
  

   form 
  an 
  exceedingly 
  coarse 
  and 
  blunt 
  conical 
  tubercle, 
  the 
  lateral 
  mar- 
  

   gins 
  straight 
  from 
  the 
  very 
  base, 
  the 
  apical 
  margin 
  removed 
  from 
  the 
  

   tip 
  of 
  the 
  supraanal 
  plate 
  by 
  considerably 
  more 
  than 
  half 
  the 
  length 
  of 
  

   the 
  latter; 
  cerci 
  large, 
  laminate, 
  arcuate, 
  the 
  angulate 
  tip 
  directed 
  

   downward; 
  furcula 
  composed 
  of 
  a 
  pair 
  of 
  minute 
  lobes. 
  

  

  B. 
  crassus 
  maj' 
  be 
  taken 
  as 
  the 
  type 
  of 
  the 
  genus. 
  

  

  Two 
  species 
  are 
  known, 
  both 
  from 
  Lower 
  California. 
  

  

  ANALYTICAL 
  KEY 
  TO 
  THE 
  SPECIES 
  OP 
  15AKYTETTIX. 
  

  

  Tegmiua 
  uuicolorons; 
  hind 
  margin 
  of 
  pronotnm 
  distinctly 
  emargiuate; 
  frontal 
  

  

  costa 
  sulcate 
  throughout 
  (male) 
  1. 
  crassus 
  (p. 
  28). 
  

  

  Tegmina 
  longitudinally 
  bicolored; 
  hind 
  margin 
  of 
  ])ronotum 
  very 
  feetly 
  emargi- 
  

   uate; 
  frontal 
  costa 
  plane, 
  or 
  depressed 
  only 
  just 
  helow 
  the 
  ocellus 
  (female). 
  

  

  2. 
  peninsulae 
  {v.2S), 
  

  

  