﻿86 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  Pronotnm 
  regularly, 
  and 
  in 
  the 
  female 
  considerably, 
  enlarging 
  posteri 
  

   orly, 
  with 
  distinct 
  (male) 
  or 
  indistinct 
  (female) 
  lateral 
  carinae 
  on 
  the 
  

   prozona, 
  which 
  is 
  twice 
  (male) 
  or 
  almost 
  twice 
  (female) 
  as 
  long 
  as 
  the 
  

   metazona, 
  its 
  sulci 
  approximated 
  and 
  equally 
  distinct, 
  but 
  not 
  so 
  dis- 
  

   tinct 
  as 
  that 
  separating 
  the 
  pro- 
  and 
  metazona 
  and, 
  unlike 
  it, 
  not 
  cut- 
  

   ting 
  the 
  median 
  carina, 
  which 
  is 
  yet 
  often 
  subobsolete 
  on 
  the 
  prozona 
  

   and 
  especially 
  on 
  its 
  posterior 
  half, 
  particularly 
  in 
  the 
  female; 
  exposed 
  

   portion 
  of 
  mesonotiim 
  about 
  half 
  (male) 
  or 
  hardly 
  more 
  than. 
  a 
  fourth 
  

   (female) 
  as 
  long 
  as 
  the 
  metanotum. 
  Interspace 
  between 
  the 
  meso- 
  

   sternal 
  lobes 
  three 
  fourths 
  (male) 
  or 
  fully 
  (female) 
  as 
  wide 
  as 
  the 
  lobes 
  

   themselves, 
  the 
  metasternal 
  interspace 
  half 
  (male) 
  or 
  three-fourths 
  

   (female) 
  the 
  width 
  of 
  the 
  mesosternal 
  interspace. 
  Fore 
  and 
  middle 
  

   femora 
  pretty 
  strongly 
  intlated 
  and 
  arcuate 
  in 
  the 
  male, 
  the 
  hind 
  

   femora 
  stout 
  and 
  heavy, 
  hardly 
  if 
  at 
  all 
  more 
  than 
  half 
  as 
  long 
  again 
  

   as 
  head 
  and 
  pronotnm 
  combined, 
  the 
  hind 
  tibiae 
  stout. 
  Abdomen 
  

   stout, 
  tapering 
  and 
  then 
  apically 
  enlarged 
  and 
  considerably 
  upturned 
  

   in 
  the 
  male; 
  snpraanal 
  plate 
  of 
  male 
  triangular, 
  shorter 
  than 
  its 
  basal 
  

   breadth, 
  with 
  a 
  pair 
  of 
  broad, 
  gently 
  tumid 
  ridges, 
  which 
  unite 
  into 
  a 
  

   single 
  median 
  ridge, 
  leaving 
  between 
  them 
  in 
  the 
  basal 
  half 
  a 
  shallow 
  

   sulcus; 
  furcula 
  wanting; 
  cerci 
  as 
  long 
  as 
  the 
  snpraanal 
  plate, 
  sub- 
  

   conical, 
  slightly 
  compressed, 
  tapering 
  a 
  little 
  more 
  rapidly 
  in 
  basal 
  

   than 
  in 
  apical 
  half, 
  rather 
  blunt 
  at 
  tip, 
  straight 
  throughout; 
  infracercal 
  

   plate 
  much 
  shorter 
  than 
  the 
  snpraanal, 
  scarcely 
  perceptible. 
  

  

  Body 
  brownish 
  fuscous 
  above 
  nuich 
  marked 
  with 
  clay 
  yellow, 
  beneath 
  

   almost 
  wholly 
  clay 
  yellow, 
  more 
  or 
  less 
  infuscated 
  in 
  the 
  female. 
  The 
  

   head 
  is 
  more 
  or 
  less 
  obscure 
  yellow, 
  the 
  vertex 
  at 
  summit 
  brownish 
  fus- 
  

   cous, 
  limited 
  at 
  most 
  to 
  a 
  narrow 
  median 
  and 
  two 
  equally 
  narrow 
  sub- 
  

   median 
  streaks, 
  the 
  latter 
  continued 
  along 
  the 
  marginal 
  ridges 
  of 
  the 
  

   fastigium 
  down 
  the 
  sides 
  of 
  the 
  frontal 
  costa, 
  but 
  at 
  the 
  apical 
  third 
  of 
  

   the 
  fastigium 
  more 
  or 
  less 
  interrupted 
  by 
  or 
  suffused 
  with 
  dull 
  red; 
  the 
  

   antennae 
  are 
  yellow 
  at 
  base, 
  gradually 
  passing 
  into 
  fuscous. 
  On 
  the 
  

   dorsum 
  of 
  the 
  thorax 
  and 
  the 
  front 
  at 
  least 
  of 
  the 
  abdomen, 
  the 
  fuscous 
  

   is 
  more 
  or 
  less 
  obscurely 
  punctate 
  or 
  flecked 
  with 
  yellowish, 
  and 
  along 
  

   the 
  median 
  line 
  of 
  the 
  abdomen 
  there 
  is 
  a 
  distinct 
  yellowish 
  stripe 
  begin- 
  

   ning 
  on 
  the 
  ineso- 
  and 
  metanota 
  as 
  a 
  mere 
  thread; 
  the 
  ijrevailing 
  tint 
  

   of 
  the 
  lateral 
  lobes 
  of 
  the 
  pronotnm 
  is 
  yellowish, 
  but 
  there 
  is 
  a 
  more 
  or 
  

   less 
  distinct 
  blackish 
  fuscous 
  oblique 
  bar 
  on 
  the 
  prozona 
  Just 
  above 
  the 
  

   middle, 
  merging 
  posteriorly 
  in 
  the 
  general 
  obscurity 
  of 
  the 
  metazona; 
  

   there 
  is 
  a 
  distinct 
  broad 
  blackish 
  fuscous 
  oblique 
  band 
  crossing 
  the 
  

   meso- 
  and 
  metapleura, 
  and 
  the 
  middle 
  of 
  the 
  sides 
  of 
  the 
  basal 
  abdomi- 
  

   nal 
  segments 
  are 
  piceous. 
  The 
  fore 
  and 
  middle 
  legs 
  are 
  fusco-luteous; 
  

   the 
  hind 
  femora 
  yellowish, 
  more 
  or 
  less 
  obscured 
  with 
  fuscous 
  and 
  

   spotted 
  with 
  fuscous 
  on 
  the 
  inner 
  upper 
  face 
  and 
  the 
  outer 
  face, 
  which 
  

   is 
  generally 
  almost 
  black 
  along 
  its 
  upper 
  half; 
  hind 
  tibiae 
  and 
  tarsi 
  

   coral 
  red, 
  brighter 
  in 
  the 
  male 
  than 
  in 
  the 
  female, 
  (he 
  external 
  series 
  

   of 
  spines 
  yellow 
  with 
  black 
  apices. 
  The 
  sides 
  of 
  the 
  supraanal 
  plate 
  of 
  

  

  