﻿242 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  portion 
  of 
  tbe 
  genae; 
  autennae 
  luteo-testaceous, 
  gradually 
  daikeniiig 
  

   from 
  base 
  to 
  apex, 
  nearly 
  two-tliirds 
  (male) 
  or 
  tbree-fiftlis 
  (female) 
  as 
  

   long 
  as 
  the 
  hiud 
  femora. 
  Pronotum 
  subequal, 
  faintly 
  expanding 
  pos- 
  

   teriorl3^ 
  the 
  disk 
  ferriigineo 
  fuscous, 
  sometimes 
  testaceous 
  flecked 
  with 
  

   fuscous, 
  gently 
  convex 
  transversely 
  and 
  passing 
  by 
  an 
  abrupt 
  but 
  

   rounded 
  shoulder, 
  scarcely 
  forming 
  lateral 
  carinae, 
  into 
  the 
  slightly 
  

   tumid 
  sub 
  vertical 
  lateral 
  lobes; 
  these 
  are 
  llavo-testaceous 
  on 
  the 
  lower, 
  

   jticeous 
  on 
  the 
  upper 
  half, 
  the 
  division 
  line 
  between 
  the 
  colors 
  sharp, 
  

   arcuate; 
  median 
  carina 
  sharp 
  and 
  distinct 
  on 
  metazona, 
  feeble 
  on 
  

   ])rozona, 
  and 
  sometimes 
  obsolete 
  between 
  the 
  sulci; 
  front 
  margin 
  trun- 
  

   cate, 
  hind 
  margin 
  feebly 
  produced, 
  subtruncate; 
  prozona 
  distantly, 
  

   coarsely, 
  and 
  shallowly 
  punctate, 
  feebly 
  convex 
  anteroposteriorly, 
  

   longitudinal, 
  nearly 
  one- 
  half 
  (male) 
  or 
  about 
  one-third 
  (female) 
  longer 
  

   than 
  the 
  closely 
  and 
  rather 
  finely 
  punctate 
  metazona. 
  Prosternal 
  

   spine 
  small, 
  stout, 
  conical, 
  and 
  rather 
  sharply 
  pointed 
  (male) 
  or 
  blunt 
  

   (female); 
  interspace 
  between 
  mesosternal 
  lobes 
  fully 
  half 
  as 
  long 
  again 
  

   as 
  broad 
  (male) 
  or 
  fully 
  half 
  as 
  broad 
  again 
  as 
  long 
  but 
  narrower 
  than 
  

   the 
  lobes 
  (female); 
  ridge 
  of 
  metathoracic 
  episterna 
  tiavous 
  like 
  the 
  

   mesothoracic, 
  piceous 
  between. 
  Tegmina 
  abbreviate, 
  shorter 
  than 
  the 
  

   pronotum, 
  in 
  the 
  female 
  scarcely 
  longer 
  than 
  the 
  prozona, 
  very 
  broadly 
  

   ovate, 
  very 
  broadly 
  rounded 
  apically, 
  attingent 
  or 
  subattingent, 
  brown- 
  

   ish 
  fuscous, 
  the 
  anal 
  area 
  often 
  cinereous. 
  Fore 
  and 
  middle 
  femora 
  

   very 
  tumid 
  in 
  the 
  male; 
  hind 
  femora 
  rather 
  stout 
  and 
  plump, 
  ferrugineo- 
  

   testaceous, 
  sometimes 
  immaculate, 
  sometimes 
  obscurely 
  and 
  brokenly 
  

   trifasciate 
  with 
  blackish 
  fuscous 
  above, 
  sometimes 
  the 
  whole 
  outer 
  face 
  

   completely 
  infuscated 
  (the 
  carinae 
  sometimes 
  flavescent). 
  the 
  inferior 
  

   surface 
  flavous 
  or 
  pale 
  sanguineous, 
  the 
  geniculation 
  feebly 
  infuscated; 
  

   hind 
  tibiae 
  very 
  dark 
  glaucous 
  or 
  bronze 
  green, 
  sometimes 
  with 
  a 
  nar- 
  

   row 
  fuscous 
  ])atellar 
  anuulus, 
  the 
  spines 
  long, 
  pallid 
  on 
  basal, 
  blackish 
  

   on 
  apical 
  half, 
  ten 
  to 
  eleven, 
  rarely 
  nine 
  or 
  twelve, 
  in 
  the 
  outer 
  series. 
  

   Abdomen 
  tiavous, 
  testaceous 
  or 
  ferruginous, 
  the 
  sides 
  marked 
  with 
  

   piceous, 
  in 
  the 
  male 
  sharply 
  delimited 
  in 
  a 
  narrowing 
  band 
  ; 
  extremity 
  

   in 
  the 
  male 
  clavate, 
  considerably 
  recurved, 
  the 
  supraanal 
  plate 
  triangu- 
  

   lar, 
  expanded 
  at 
  extreme 
  base, 
  the 
  apex 
  acutangulate, 
  the 
  lateral 
  mar- 
  

   gins 
  broadly 
  elevated, 
  the 
  median 
  sulcus 
  very 
  broad 
  at 
  base, 
  rapidly 
  

   narrowing 
  so 
  that 
  at 
  and 
  beyond 
  the 
  middle 
  it 
  is 
  very 
  slender, 
  the 
  

   arcuate 
  bounding 
  ridges 
  high 
  and 
  sharj) 
  ; 
  furcula 
  reduced 
  to 
  the 
  slightly 
  

   projecting 
  inner 
  angles 
  of 
  the 
  divided 
  halves 
  of 
  the 
  last 
  dorsal 
  segment; 
  

   cerci 
  strongly 
  compressed, 
  very 
  broad 
  and 
  rounded 
  on 
  basal 
  half, 
  with 
  

   marginal 
  borders, 
  and 
  a 
  little 
  tumid 
  in 
  the 
  middle, 
  the 
  apical 
  half 
  sub 
  

   cylindrical, 
  slender, 
  tapering, 
  pointed, 
  not 
  one-third 
  the 
  width 
  of 
  the 
  

   base, 
  the 
  whole 
  not 
  more 
  than 
  half 
  as 
  long 
  again 
  as 
  broad 
  and 
  hardly 
  

   attaining 
  the 
  tip 
  of 
  the 
  supraanal 
  plate; 
  subgenital 
  plate 
  much 
  longer 
  

   than 
  broad, 
  with 
  very 
  convex 
  lateral 
  margins, 
  deeply 
  hollowed 
  and 
  

   entire 
  apical 
  margin, 
  the 
  margins 
  quadrate 
  as 
  seen 
  from 
  above. 
  

  

  Length 
  of 
  body, 
  male, 
  18 
  mm,, 
  female, 
  19 
  mm.; 
  antennae, 
  male, 
  G.5 
  

  

  