﻿24 
  FMOCEEDIXGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.xx. 
  

  

  notura 
  enlarging 
  slightly 
  (male) 
  or 
  considerably 
  (female) 
  in 
  passing 
  

   backward, 
  with 
  distinct 
  percnrrent 
  median 
  carina 
  and 
  sometimes 
  dis- 
  

   tinct, 
  sometimes 
  scarcely 
  perceptible 
  lateral 
  carinae, 
  the 
  dorsnm 
  very 
  

   broadly 
  tectate 
  in 
  the 
  iirst 
  case, 
  obscnrely 
  so 
  in 
  the 
  second, 
  tlic 
  lateral 
  

   lobes 
  subvertical 
  or 
  vertical; 
  both 
  front 
  and 
  hind 
  margins 
  transverse, 
  

   the 
  hitter 
  emarginate; 
  i>rozona 
  sparsely 
  punctate, 
  as 
  long 
  as 
  its 
  pos- 
  

   terior 
  breadth, 
  about 
  twice 
  as 
  long 
  as 
  tlie 
  densely 
  punctate 
  meta/ona, 
  

   cut 
  in 
  the 
  middle 
  by 
  a 
  distinct, 
  straight, 
  transverse 
  sulcus, 
  and 
  followed 
  

   at 
  less 
  than 
  half 
  the 
  distance 
  to 
  the 
  metazona 
  by 
  a 
  similarly 
  impressed 
  

   transverse 
  sulcus 
  of 
  variable 
  direction. 
  Prosternal 
  spine 
  conical, 
  erect, 
  

   in 
  the 
  male 
  rather 
  long; 
  interspace 
  between 
  mesosternal 
  lobes 
  sub- 
  

   quadrate 
  but 
  much 
  narrower 
  than 
  the 
  lobes 
  in 
  the 
  male, 
  distinctly 
  

   transverse 
  and 
  nearly 
  or 
  quite 
  as 
  broad 
  as 
  the 
  lobes 
  in 
  the 
  female, 
  the 
  

   mctasternal 
  lobes 
  attingent 
  or 
  approximate 
  in 
  the 
  male, 
  moderately 
  

   distant 
  in 
  the 
  female. 
  Tegmina 
  rather 
  long 
  elliptical, 
  fully 
  as 
  long 
  as 
  

   the 
  prozona. 
  Fore 
  and 
  middle 
  femora 
  tumid 
  in 
  the 
  male; 
  hind 
  femora 
  

   not 
  very 
  long 
  and 
  rather 
  stout, 
  but 
  subcompressed, 
  the 
  hind 
  tibiae 
  with 
  

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

   sub'clavate, 
  but 
  elongate 
  by 
  the 
  posterior 
  extension 
  of 
  the 
  subgenital 
  

   plate, 
  as 
  in 
  Barytettix, 
  as 
  a 
  blunt 
  conical 
  tubercle; 
  lateral 
  margins 
  of 
  

   this 
  plate 
  straight 
  from 
  the 
  base, 
  the 
  apical 
  margin 
  well 
  rounded, 
  reach- 
  

   ing 
  beyond 
  the 
  tip 
  of 
  the 
  supraanal 
  plate 
  by 
  a 
  brief 
  distance; 
  cerci 
  

   and 
  furcula 
  as 
  in 
  Barytettix. 
  

  

  The 
  type 
  of 
  this 
  genus 
  is 
  (7. 
  migiielitana, 
  the 
  only 
  one 
  in 
  which 
  both 
  

   sexes 
  are 
  known. 
  

  

  Three 
  species 
  are 
  here 
  described 
  ; 
  they 
  occur 
  in 
  Mexico 
  and 
  south- 
  

   western 
  New 
  Mexico. 
  

  

  ANALYTICAL 
  KEY 
  TO 
  THE 
  SPECIES 
  OF 
  CONALCAEA. 
  

  

  A'. 
  Lateral 
  cariuac 
  of 
  iirouotum 
  distinct; 
  posterior 
  margin 
  of 
  prouotum 
  distinctly 
  

   eniarginate. 
  

  

  b'. 
  Tegmina 
  well 
  rounded 
  at 
  tip; 
  bind 
  tibiae 
  red 
  1. 
  mig\(elitana 
  (ji. 
  24). 
  

  

  h'. 
  Tegmina 
  apically 
  truncate; 
  bind 
  tibiai^ 
  luteous 
  or 
  flavesccnt. 
  

  

  2. 
  truncatipennis 
  (p. 
  25). 
  

   A"^. 
  Lateral 
  carinae 
  of 
  pronotnm 
  obscure, 
  tbo 
  dorsum 
  passing 
  almost 
  insen8il)ly 
  into 
  

   the 
  lateral 
  lobes; 
  jtosterior 
  margin 
  of 
  i,>ronotum 
  only 
  faintly 
  emargiuate; 
  lobes 
  of 
  

   furcula 
  of 
  male 
  much 
  broadertban 
  long, 
  scarcely 
  ])rojecting. 
  

  

  3. 
  iieomexicana 
  (p. 
  26). 
  

  

  I. 
  CONALCAEA 
  MIGUELITANA, 
  new 
  species. 
  

   (Plate 
  II, 
  fig. 
  8.) 
  

  

  Fusco-testaceous, 
  more 
  or 
  less 
  lutescent 
  beneath, 
  very 
  sparsely 
  pilose. 
  

   Headdull 
  luteous 
  (male) 
  orolivaceo-testaceous, 
  much 
  infuscated 
  (female), 
  

   the 
  vertex 
  always 
  more 
  or 
  less 
  infuscated 
  and 
  esi)ecially 
  marked 
  with 
  

   a 
  i)air 
  of 
  dark 
  streaks 
  divergent 
  from 
  the 
  base 
  of 
  the 
  fastigium 
  ; 
  genae 
  

   nmch 
  mottled 
  with 
  fuscous, 
  particularly 
  in 
  the 
  female; 
  fastigium 
  sulcate 
  

   between 
  the 
  eyes 
  and 
  feebly, 
  in 
  the 
  male 
  only, 
  beyond; 
  frontal 
  costa 
  

   barely 
  reaching 
  the 
  clypeus, 
  nearly 
  plane 
  but 
  depressed 
  at 
  the 
  ocellus 
  

   in 
  the 
  female, 
  feebly 
  sulcate 
  except 
  at 
  summit 
  in 
  the 
  male, 
  punctate 
  

  

  