﻿1(12 
  riiOCEEDINGS 
  OF 
  VHE 
  NATIONAL 
  MUSEUM. 
  

  

  appearance; 
  a 
  broad 
  black 
  band 
  extends 
  from 
  behind 
  the 
  eyes 
  across 
  

   the 
  upper 
  part 
  of 
  the 
  lateral 
  lobes 
  of 
  the 
  pronotinn, 
  broadening 
  on 
  the 
  

   metazona. 
  Interspace 
  between 
  the 
  eyes 
  moderately 
  narrow, 
  scarcely 
  

   wider 
  than 
  the 
  first 
  antennal 
  joint; 
  fastigium 
  narrow, 
  with 
  sides 
  

   broadening 
  a 
  little 
  in 
  front, 
  i^retty 
  sharply 
  defined, 
  inclosing 
  a 
  moder- 
  

   ately 
  deep 
  sulcus, 
  deepest 
  posteriorly 
  ; 
  frontal 
  costa 
  rather 
  broad, 
  nearly 
  

   equal, 
  fading 
  out 
  below, 
  with 
  a 
  scarcely 
  perceptible 
  sulcus 
  excepting 
  

   about 
  the 
  ocellus; 
  antennae 
  a 
  little 
  more 
  (male) 
  or 
  much 
  less 
  (female) 
  than 
  

   three-fourths 
  as 
  long 
  as 
  the 
  hind 
  femora, 
  orange 
  red, 
  paler 
  at 
  base. 
  

   Pronotum 
  subequal, 
  the 
  disk 
  nearly 
  plane, 
  the 
  front 
  border 
  truncate, 
  

   the 
  hind 
  border 
  obtusely 
  angulate; 
  median 
  carina 
  very 
  slight, 
  most 
  

   distinct 
  on 
  the 
  metazona, 
  cut 
  by 
  all 
  the 
  transverse 
  sulci; 
  lateral 
  carinae 
  

   obsolete; 
  prozona 
  distinctly 
  longitudinal, 
  a 
  third 
  to 
  a 
  fourth 
  longer 
  

   than 
  the 
  metazona 
  (male) 
  or 
  quadrate, 
  only 
  slightly 
  longer 
  than 
  the 
  

   metazona 
  (female). 
  Prosternal 
  spine 
  long, 
  conical, 
  bluntly 
  tipped, 
  some- 
  

   what 
  retrorse, 
  in 
  the 
  male 
  considerably 
  appressed 
  ; 
  interspace 
  between 
  

   mesosternal 
  lobes 
  about 
  twice 
  as 
  long 
  as 
  broad 
  in 
  both 
  sexes, 
  the 
  meta- 
  

   sternal 
  lobes 
  attingent 
  (male) 
  or 
  approximate 
  (female). 
  Tegmina 
  as 
  

   long 
  as 
  the 
  body, 
  brown, 
  with 
  a 
  few 
  dusky 
  flecks 
  along 
  the 
  central 
  

   field. 
  Legs 
  darker 
  or 
  lighter 
  brownish 
  yellow, 
  flecked 
  with 
  fuscous, 
  

   the 
  hind 
  femora 
  bifasciate 
  above 
  with 
  blackish, 
  besides 
  a 
  blackish 
  

   base 
  and 
  apex; 
  hind 
  tibiae 
  glaucous 
  with 
  a 
  pale 
  annulus 
  at 
  the 
  base, 
  

   interrupted 
  in 
  the 
  middle 
  by 
  a 
  blackish 
  glaucous 
  ring, 
  the 
  spines 
  pallid 
  

   at 
  base, 
  black 
  beyond, 
  ten 
  to 
  twelve 
  in 
  number 
  in 
  the 
  outer 
  series. 
  

   Extremity 
  of 
  male 
  abdomen 
  compressed, 
  hardly 
  clavate, 
  upturned, 
  the 
  

   supraanal 
  j)late 
  triangular 
  with 
  nearly 
  straight 
  sides, 
  the 
  surface 
  sub- 
  

   tectate, 
  with 
  a 
  very 
  deep 
  and 
  narrow 
  percurrent 
  median 
  sulcus, 
  bounded 
  

   by 
  sharp 
  ridges; 
  furcula 
  consisting 
  of 
  a 
  pair 
  of 
  basally 
  attingent, 
  

   minute, 
  triangular 
  denticulations, 
  surrmounting 
  the 
  ridges 
  of 
  the 
  supra-' 
  

   anal 
  plate; 
  cerci 
  broad 
  at 
  base, 
  scarcely 
  twice 
  as 
  long 
  as 
  broad, 
  sub- 
  

   reniform, 
  well 
  rounded, 
  but 
  little 
  smaller 
  on 
  the 
  apical 
  half, 
  not 
  so 
  long 
  

   as 
  the 
  supraanal 
  plate; 
  subgenital 
  plate 
  broader-than 
  long, 
  neither 
  

   elevated 
  nor 
  prolonged 
  apically, 
  but 
  a 
  little 
  compressed, 
  so 
  that 
  the 
  

   thickened 
  apical 
  margin 
  as 
  seen 
  from 
  above 
  is 
  strongly 
  rounded 
  (the 
  

   figure 
  was, 
  unfortunately, 
  drawn 
  from 
  a 
  specimen 
  in 
  which 
  the 
  extreme 
  

   apex 
  was 
  slightly 
  collapsed 
  in 
  drying) 
  and 
  subacuminate, 
  extending 
  far 
  

   beyond 
  the 
  tip 
  of 
  the 
  supraanal 
  i)late. 
  

  

  Length 
  of 
  body, 
  male, 
  22.5 
  mm., 
  female, 
  28 
  mm. 
  ; 
  antennae, 
  male 
  and 
  

   female, 
  9.5 
  mm.; 
  tegmina, 
  male, 
  16mm., 
  female, 
  18.75 
  mm.; 
  hind 
  £pmora, 
  

   male, 
  12 
  mm., 
  female, 
  15.5 
  mm. 
  

  

  Nine 
  males, 
  12 
  females. 
  Dallas, 
  Texas, 
  August 
  18, 
  Boll 
  (Museum 
  

   Comparative 
  Zoology; 
  U.S.N. 
  M. 
  — 
  Rjley 
  collection; 
  S. 
  H. 
  Scudder); 
  

   Lerdo, 
  Ducango, 
  Mexico 
  (L. 
  Brauer). 
  

  

  