﻿320 
  rROCEEDixas 
  of 
  the 
  national 
  museum. 
  

  

  genae; 
  antennae 
  pale 
  rufous 
  or 
  dark 
  olivaceous, 
  apically 
  infuscated, 
  

   two-thirds 
  (male) 
  or 
  scarcely 
  more 
  than 
  half 
  (female) 
  as 
  long 
  as 
  the 
  

   hind 
  femora. 
  Pronotum 
  feebly 
  (male) 
  or 
  gently 
  (female) 
  enlarging 
  

   posteriorly, 
  olivaceous 
  green, 
  more 
  or 
  less 
  infuscated 
  in 
  the 
  male, 
  with 
  

   a 
  broad 
  greenish- 
  fuscous 
  (female) 
  or 
  brownish-fuscous 
  (male) 
  jwstocular 
  

   band 
  confined 
  to 
  the 
  prozona, 
  the 
  lateral 
  carinae 
  above 
  it 
  sometimes 
  

   marked 
  with 
  dull 
  flavous; 
  disk 
  nearly 
  plane 
  but 
  subtectate, 
  passing 
  by 
  

   an 
  abrupt 
  but 
  rounded 
  angulation, 
  forming 
  distinct 
  percurrent 
  lateral 
  

   carinae, 
  into 
  the 
  slightly 
  tumid 
  but 
  otherwise 
  vertical 
  lateral 
  lobes; 
  

   median 
  carina 
  distinct, 
  sharp, 
  equal, 
  percurrent; 
  front 
  margin 
  snb- 
  

   truncate, 
  hind 
  margin 
  very 
  obtusangulate, 
  sometimes 
  rotundato 
  obtus- 
  

   angulate; 
  prozona 
  longitudinal 
  (male) 
  or 
  longitudinall}^ 
  subquadrate 
  

   (female), 
  but 
  little 
  longer 
  than 
  the 
  densely 
  but 
  shallowly 
  punctate 
  

   metazona. 
  Prosteriial 
  spine 
  very 
  long, 
  cylindrical 
  or 
  feebly 
  conical, 
  

   blunt, 
  somewhat 
  retrorse; 
  interspace 
  between 
  mesosternal 
  lobes 
  more 
  

   than 
  half 
  as 
  long 
  again 
  as 
  broad 
  (male) 
  or 
  transversely 
  subquadrate 
  

   (female). 
  Tegmina 
  abbreviate, 
  about 
  as 
  loug 
  as 
  the 
  pronotum, 
  over- 
  

   lapping, 
  short 
  lanceolate, 
  subacuminate 
  and 
  brownish 
  fuscous 
  (nuile) 
  

   or 
  green 
  more 
  or 
  less 
  suffnsed 
  with 
  fusco-ferruginous 
  (female). 
  Fore 
  

   and 
  middle 
  femora 
  considerably 
  tumid 
  in 
  the 
  male; 
  hind 
  femora 
  green 
  

   (female) 
  or 
  brownish 
  fuscous 
  (male), 
  the 
  outer 
  face 
  more 
  or 
  less 
  ferru- 
  

   ginous 
  (female) 
  or 
  testaceous 
  (male), 
  the 
  under 
  surface 
  sanguineous 
  and 
  

   the 
  genicular 
  arc 
  black; 
  hind 
  tibiae 
  green, 
  in 
  the 
  male 
  more 
  or 
  less 
  

   infuscated, 
  apically 
  growing 
  very 
  i^ale 
  ferruginous, 
  the 
  spines 
  pallid, 
  

   black-tipped, 
  ten 
  to 
  twelve 
  in 
  number 
  in 
  the 
  outer 
  series. 
  Extremity 
  

   of 
  male 
  abdomen 
  clavate, 
  considerably 
  recurved, 
  the 
  supraanal 
  plate 
  

   triangular, 
  acutangulate 
  at 
  apex, 
  the 
  lateral 
  margins 
  and 
  the 
  sharp 
  

   submedian 
  ridges 
  equally 
  and 
  feebly 
  elevated, 
  formiug 
  between 
  them 
  

   a 
  broad 
  shallow 
  sulcus, 
  the 
  median 
  sulcus 
  moderately 
  broad, 
  percurrent, 
  

   not 
  very 
  deep; 
  furcula 
  consisting 
  of 
  a 
  pair 
  of 
  slight 
  approximate 
  tri- 
  

   angular 
  denticulations; 
  cerci 
  large, 
  stout, 
  fully 
  twice 
  as 
  long 
  as 
  broad, 
  

   much 
  narrowed 
  in 
  the 
  middle 
  by 
  the 
  strong 
  arcuation 
  of 
  the 
  upper 
  

   margin, 
  apically 
  expanded 
  into 
  a 
  subtriangular 
  lobe, 
  the 
  whole 
  nearly 
  

   straight 
  but 
  slightly 
  upcurved 
  as 
  seen 
  from 
  the 
  side, 
  sinuate 
  as 
  seen 
  

   from 
  above 
  (though 
  not 
  so 
  strongly 
  as 
  rex)resented 
  in 
  the 
  ligure), 
  being 
  

   first 
  curved 
  inward 
  and 
  then 
  slightly 
  outward; 
  subgenital 
  plate 
  sub- 
  

   conical, 
  the 
  sides 
  not 
  vertical 
  but 
  inclined 
  inward 
  so 
  that 
  the 
  free 
  mar- 
  

   gins 
  unite 
  in 
  an 
  acute 
  angle, 
  while 
  at 
  the 
  same 
  time 
  the 
  apex 
  is 
  pro- 
  

   duced 
  and 
  elevated 
  to 
  form 
  a 
  conical 
  marginal 
  tubercle. 
  

  

  Length 
  of 
  body, 
  male, 
  17.5 
  mm., 
  female, 
  22 
  mm. 
  ; 
  antennae, 
  male 
  and 
  

   female, 
  6.75 
  mm. 
  ; 
  tegmina, 
  male, 
  6 
  mm., 
  female, 
  6.25 
  mm. 
  ; 
  hind 
  femora, 
  

   male, 
  10.5 
  mm., 
  fenuile, 
  13 
  mm. 
  

  

  Two 
  males, 
  2 
  females. 
  City 
  of 
  Mexico, 
  Mexico, 
  November, 
  L. 
  Bruner; 
  

   Queretaro, 
  Mexico, 
  November 
  (L. 
  Bruner;. 
  

  

  