﻿700 
  ntOCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  legs 
  of 
  male 
  with 
  two 
  distinct 
  conic 
  spines 
  or 
  a 
  bideutate 
  process; 
  

   sternum 
  of 
  sixth 
  legs 
  without 
  a 
  process. 
  

  

  Legs 
  long 
  and 
  slender; 
  anterior 
  legs 
  of 
  male 
  with 
  cushions 
  of 
  dense 
  

   hairs; 
  third 
  joint 
  unmodified. 
  

  

  Oopulatory 
  legs 
  terminating 
  typically 
  in 
  a 
  thicker 
  and 
  a 
  more 
  slender 
  

   spine 
  of 
  subeqnal 
  length, 
  both 
  turned 
  mesad 
  and 
  crossing 
  their 
  fellows. 
  

  

  HabrodesimiH 
  belongs, 
  apparently, 
  to 
  the 
  same 
  series 
  as 
  Phaeodeswus 
  

   and 
  Gnemodesimis, 
  but 
  is 
  easy 
  distinguishable 
  from 
  these 
  by 
  having 
  the 
  

   third 
  joint 
  of 
  anterior 
  male 
  legs 
  unmodified, 
  and 
  by 
  the 
  much 
  smaller 
  

   carinae. 
  

  

  HABRODESMUS 
  LAETUS 
  Cook. 
  

  

  Hahrodesmus 
  Jaetus 
  Cook, 
  American 
  Naturalist, 
  XXX, 
  p. 
  418, 
  1896; 
  Proc. 
  Acad. 
  

   Nat. 
  Sci., 
  Philadelphia, 
  1896, 
  p. 
  261. 
  

  

  Color 
  in 
  life 
  black, 
  the 
  carinae 
  and 
  posterior 
  margins 
  of 
  the 
  segments 
  

   yellow, 
  shading 
  through 
  orange 
  into 
  the 
  darker 
  general 
  color. 
  Legs 
  

   bright 
  orange 
  and 
  pink; 
  antennae 
  dark 
  brown. 
  The 
  first 
  segment 
  has 
  

   a 
  broader 
  yellow 
  border 
  running 
  entirely 
  around. 
  In 
  alcohol 
  the 
  colors 
  

   fade 
  so 
  that 
  the 
  body 
  is 
  dark 
  chestnut 
  brown, 
  the 
  legs 
  and 
  margins 
  of 
  

   the 
  segments 
  whitish. 
  

  

  Oopulatory 
  legs 
  with 
  larger 
  distal 
  arm 
  produced 
  and 
  attenuate, 
  with 
  

   a 
  large 
  tooth 
  some 
  distance 
  below 
  the 
  incurved 
  apex. 
  The 
  slender 
  arm 
  

   is 
  entirely 
  hidden 
  in 
  ventral 
  view. 
  

  

  Length 
  of 
  male, 
  27 
  mm. 
  ; 
  width, 
  2 
  mm. 
  ; 
  length 
  of 
  antennae, 
  5.2 
  mm. 
  ; 
  

   of 
  leg 
  from 
  tenth 
  segment, 
  4.5 
  mm. 
  

  

  Locality. 
  — 
  Liberia. 
  A 
  very 
  rare 
  species 
  inhabiting 
  the 
  denser 
  parts 
  

   of 
  the 
  forests 
  along 
  creeks. 
  The 
  very 
  brilliant 
  colors 
  and 
  agile 
  move- 
  

   ments 
  give 
  the 
  living 
  animal 
  a 
  striking 
  appearance. 
  

  

  Type. 
  — 
  No. 
  619, 
  U.S.N.M. 
  A 
  male 
  specimen. 
  

  

  The 
  sternum 
  of 
  the 
  fourth 
  legs 
  bears 
  two 
  entirely 
  distinct, 
  somewhat 
  

   rounded, 
  and 
  antero-postically 
  flattened 
  processes 
  not 
  heavily 
  chiti- 
  

   nized. 
  

  

  HABRODESMUS 
  FALX 
  Cook. 
  

  

  Hahrodesmus 
  falx 
  Cook, 
  Proc. 
  Acad. 
  Nat. 
  Sci. 
  Philadelphia, 
  1896, 
  p. 
  265. 
  

  

  In 
  size, 
  habit, 
  and 
  probably 
  in 
  living 
  colors 
  closely 
  resembling 
  H. 
  

   laetus. 
  

  

  Lateral 
  carinae 
  slightly 
  larger 
  than 
  those 
  of 
  H. 
  laetus, 
  especially 
  on 
  

   middle 
  segments 
  where 
  there 
  is 
  a 
  very 
  slight 
  corner, 
  which 
  is 
  obsolete 
  

   in 
  H. 
  laetus. 
  

  

  Sterna 
  of 
  fourth 
  legs 
  with 
  processes 
  similar 
  to 
  those 
  of 
  IT. 
  laetus, 
  

   but 
  more 
  prominent 
  and 
  somewhat 
  connate 
  at 
  base. 
  

  

  Oopulatory 
  legs 
  with 
  larger 
  arm 
  expanded 
  at 
  apex 
  and 
  terminating 
  

   in 
  a 
  broad, 
  obliquely 
  truncate 
  lamina, 
  with 
  a 
  small 
  transparent 
  process 
  

   from 
  near 
  the 
  middle 
  of 
  the 
  apical 
  edge. 
  

  

  Oolor 
  in 
  alcohol 
  brown 
  or 
  black; 
  the 
  margins 
  of 
  the 
  first, 
  the 
  pos- 
  

   terior 
  margins 
  of 
  the 
  other 
  segments, 
  the 
  ventral 
  surface 
  and 
  legs, 
  

   whitish; 
  antennae 
  dark 
  brown. 
  

  

  