﻿704 
  VUOCEEDINCS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  stronger 
  and 
  more 
  projecting 
  caudad 
  when 
  viewed 
  from 
  the 
  side, 
  though 
  

   hardly 
  more 
  so 
  than 
  in 
  H. 
  massai; 
  the 
  posterior 
  end 
  of 
  the 
  body 
  is 
  more 
  

   tapering, 
  and 
  tlie 
  last 
  segment 
  more 
  produced 
  caudad. 
  Finally 
  the 
  

   whole 
  animal 
  is 
  more 
  slender 
  than 
  the 
  females 
  of 
  the 
  species 
  of 
  Habro- 
  

   desmus. 
  According 
  to 
  Peters, 
  the 
  color 
  pattern 
  was 
  also 
  different 
  from 
  

   Rahrodesmus 
  in 
  the 
  absence 
  of 
  transverse 
  yellow 
  bands, 
  and 
  more 
  

   similar 
  to 
  that 
  of 
  Seolodesmun. 
  The 
  greater 
  development 
  of 
  the 
  

   carinae, 
  however, 
  forbids 
  a 
  reference 
  to 
  that 
  genus. 
  The 
  specimen 
  

   belongs 
  to 
  the 
  Berlin 
  IMuseum 
  and 
  was 
  collected 
  at 
  Terra 
  Boror, 
  18° 
  

   south 
  latitude, 
  the 
  vicinity 
  of 
  Quilimane.' 
  

  

  HABRODESMUS 
  NEGLECTUS 
  (Silvestri). 
  

  

  Stongijlosoma 
  neghctmn 
  Silvestri, 
  Anu. 
  Mus. 
  Civ. 
  Genov. 
  (2), 
  XXXV, 
  p. 
  485, 
  fig. 
  2, 
  

   M)5. 
  

  

  The 
  characters 
  given 
  in 
  the 
  description 
  of 
  this 
  species 
  are 
  scarcely 
  

   more 
  than 
  generic, 
  but 
  from 
  the 
  figures 
  it 
  appears 
  that 
  it 
  may 
  safely 
  be 
  

   referred 
  to 
  the 
  present 
  genus. 
  

  

  Locality.— 
  ^\iO'A, 
  Abyssinia. 
  The 
  type 
  is 
  in 
  the 
  Genoa 
  Museum. 
  

  

  XANTHODESMUS, 
  new 
  genus. 
  

  

  Evidently 
  closely 
  related 
  to 
  Rahrodesmus, 
  but 
  distinguishable 
  by 
  

   the 
  absence 
  of 
  pores 
  from 
  the 
  fifth 
  segment 
  and 
  of 
  a 
  process 
  from 
  the 
  

   sternum 
  of 
  the 
  fourth 
  pair 
  of 
  legs 
  of 
  males. 
  The 
  copulatory 
  legs 
  are 
  

   similar 
  to 
  those 
  of 
  Rahrodesmus, 
  but 
  are 
  divided 
  toward 
  the 
  apex 
  into 
  

   two 
  curved 
  prongs, 
  a 
  condition 
  not 
  known 
  to 
  exist 
  in 
  any 
  species 
  of 
  

   Rahrodesmus. 
  The 
  body 
  is 
  somewhat 
  more 
  slender 
  and 
  the 
  carinae 
  

   are 
  somewhat 
  less 
  developed 
  than 
  in 
  Rahrodesmus, 
  but 
  these 
  differ- 
  

   ences 
  are 
  merely 
  quantitative 
  and 
  would 
  be 
  supposed 
  to 
  have 
  specific 
  

   value 
  only, 
  were 
  it 
  not 
  for 
  the 
  structural 
  characters 
  mentioned, 
  the 
  

   constancy 
  of 
  which 
  in 
  other 
  families 
  of 
  the 
  present 
  order 
  is 
  well 
  

   known. 
  The 
  sternum 
  of 
  the 
  fourth 
  legs 
  in 
  the 
  present 
  genus 
  seems 
  

   not 
  to 
  be 
  widened 
  or 
  otherwise 
  modified, 
  and 
  is 
  in 
  all 
  respects 
  like 
  that 
  

   of 
  the 
  fifth 
  pair, 
  both 
  being 
  slightly 
  sulcate 
  longitudinally. 
  

  

  XANTHODESMUS 
  ABYSSINICUS, 
  new 
  species. 
  

  

  Head 
  as 
  wide 
  as 
  the 
  first 
  segment; 
  vertex 
  and 
  clypeus 
  strongly 
  and 
  

   evenly 
  convex, 
  smooth; 
  sulcus 
  narrow 
  and 
  shallow, 
  though 
  distinct. 
  

  

  First 
  segment 
  evenly 
  convex, 
  a 
  slight 
  transverse 
  depression 
  in 
  front 
  

   of 
  the 
  posterior 
  margin, 
  stronger 
  laterad; 
  anterior 
  and 
  lateral 
  margins 
  

   finely 
  raised, 
  but 
  not 
  so 
  broad 
  as 
  in 
  Rahrodesmus 
  massai. 
  

  

  1 
  Since 
  the 
  above 
  was 
  written 
  material 
  from 
  Quilimaue 
  has 
  turned 
  up 
  and 
  is 
  here 
  

   described 
  iindcr 
  Phacodesmus. 
  It 
  is 
  by 
  no 
  means 
  impossible 
  that 
  Ph. 
  lotu/ipes 
  

   (Attems) 
  is 
  a 
  synonym 
  of 
  the 
  present 
  species, 
  but 
  the 
  type 
  of 
  aculeatns 
  is 
  not 
  at 
  

   hand 
  for 
  comparison. 
  

  

  