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  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  Copulatoiy 
  legs 
  with 
  distal 
  ungual 
  portion 
  of 
  second 
  joint 
  not 
  exceeding 
  in 
  length 
  

   the 
  hairy 
  hasal 
  part, 
  and 
  not 
  produofd 
  into 
  one 
  or 
  more 
  attennato 
  prongs; 
  anterior 
  

   male 
  loo's 
  without 
  cushions 
  of 
  densely 
  crowded 
  hairs 
  on 
  the 
  two 
  distal 
  joints: 
  

   Genus 
  ScoJodesmiis, 
  Liberia. 
  

  

  Copulatory 
  legs 
  produced 
  into 
  one 
  or 
  more 
  attenuate 
  prongs, 
  so 
  that 
  tlie 
  hairless 
  

   apical 
  part 
  of 
  the 
  second 
  joint 
  would, 
  if 
  extended, 
  much 
  exceed 
  the 
  basal 
  hairy 
  

   portion" 
  anterior 
  legs 
  of 
  males 
  with 
  distinct 
  cushions 
  or 
  pads 
  of 
  dense 
  hairs 
  on 
  tlie 
  

   two 
  distal 
  joints 
  

  

  Copulatory 
  legs 
  distally 
  produced 
  into 
  a 
  long 
  arm 
  which 
  is 
  curved 
  at 
  first 
  mesad 
  

   and 
  then 
  turned 
  in 
  a 
  circle 
  so 
  that 
  its 
  two-pronged 
  apex 
  lies 
  laterad; 
  cariuae 
  very 
  

   small 
  rudimentary 
  or 
  obsolete 
  on 
  poreless 
  and 
  posterior 
  segments 
  : 
  Genus 
  Ectodes- 
  

   mus 
  new, 
  type 
  E. 
  exiortus, 
  new 
  species, 
  Lindi, 
  Berlin 
  Museum. 
  

  

  Copulatory 
  legs 
  turned 
  mesad 
  and 
  superposed, 
  their 
  apices 
  thus 
  not 
  turned 
  out- 
  

   ward 
  except 
  as 
  they 
  extend 
  beyond 
  each 
  other 
  after 
  crossing; 
  carinae 
  distinct 
  and 
  

   produced, 
  at 
  least 
  on 
  posterior 
  segments 
  

  

  Fifth 
  segment 
  without 
  repugnatorial 
  pores; 
  Genus 
  Xanthodesmns, 
  new, 
  type 
  X. 
  

   abyssinicus, 
  new 
  species, 
  Berlin 
  Museum. 
  

   Fifth 
  segment 
  provided 
  with 
  pores 
  

  

  Copulatory 
  legs 
  with 
  two 
  rather 
  short, 
  broad 
  processes 
  rising 
  from 
  near 
  the 
  

   middle 
  of 
  the 
  leg 
  and 
  projecting 
  mesad 
  ; 
  sternum 
  of 
  fourth 
  legs 
  with 
  a 
  thin, 
  strongly 
  

   chitiuized 
  process 
  as 
  high 
  as 
  broad 
  and 
  somewhat 
  narrowed 
  laterally 
  at 
  base 
  : 
  Genus 
  

   Phaeodesmus, 
  new, 
  type 
  Ph. 
  loin/ipes 
  (Attems), 
  Quilimaue, 
  Hamburg 
  Museum. 
  

  

  Copulatory 
  legs 
  without 
  such 
  processes; 
  sternum 
  of 
  fourth 
  legs 
  with 
  process 
  very 
  

   small 
  or 
  bifid 
  

  

  Legs 
  4-6 
  with 
  the 
  third 
  joint 
  crassate 
  and 
  enlarged 
  below 
  into 
  a 
  distinct 
  tuber- 
  

   culoid 
  process; 
  carinae 
  all 
  prodiued 
  caudad 
  beyond 
  the 
  posterior 
  margin 
  of 
  the 
  seg- 
  

   ment: 
  Genus 
  Cnemodemms, 
  Congo. 
  

  

  Legs 
  Avith 
  third 
  joint 
  not 
  specially 
  modified; 
  carinae 
  slightly 
  produced 
  only 
  on 
  

   anterior 
  and 
  posterior 
  segments: 
  Genus 
  Habrodesmus, 
  Liberia. 
  

  

  Genus 
  SCOLODESMUS 
  Cook. 
  

   Scolodesmits 
  Cook. 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  XVIII, 
  p. 
  97, 
  1895. 
  

  

  Body 
  rather 
  small 
  and 
  slender, 
  nearly 
  cylindrical, 
  somewhat 
  con- 
  

   stricted 
  behind 
  the 
  first 
  segment. 
  

  

  Cariuae 
  very 
  small, 
  rudimentary 
  or 
  wanting 
  on 
  poreless 
  and 
  posterior 
  

   segments. 
  

  

  Sterna 
  of 
  posterior 
  legs 
  of 
  each 
  segment 
  with 
  a 
  pair 
  of 
  conic 
  processes; 
  

   sternum 
  of 
  fourth 
  legs 
  of 
  male 
  with 
  a 
  rather 
  large, 
  thick, 
  bidentate 
  

   l)rocess; 
  sternum 
  of 
  sixth 
  legs 
  without 
  a 
  process. 
  

  

  Legs 
  very 
  long 
  and 
  slender; 
  anterior 
  legs 
  of 
  male 
  witliout 
  distiuct 
  

   cushions 
  of 
  densely 
  crowded 
  hairs; 
  third 
  joint 
  unmodified. 
  

  

  Copulatory 
  legs 
  rather 
  short, 
  broad 
  and 
  simple, 
  not 
  produced 
  into 
  

   slender 
  arms 
  or 
  prongs 
  as 
  in 
  the 
  other 
  genera. 
  

  

  SCOLODESMUS 
  GRALLATOR 
  Cook. 
  

  

  Scolodesmus 
  graUator 
  Cook, 
  American 
  Naturalist, 
  XXX, 
  p. 
  418, 
  1896; 
  Proc. 
  Acad. 
  

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

  

  Color 
  dark 
  vinous, 
  sometimes 
  lighter 
  in 
  the 
  middle 
  of 
  each 
  posterior 
  

   subsegment, 
  which 
  gives 
  the 
  eflect 
  of 
  a 
  light 
  median 
  line; 
  legs 
  and 
  

   antennae 
  pink 
  or 
  yellowish 
  in 
  life, 
  fading 
  to 
  white 
  in 
  alcohol. 
  

  

  