﻿NO. 
  1137. 
  AFRICAN 
  STRONGTLOSOMATIDAE— 
  COOK. 
  705 
  

  

  Second 
  segment 
  with 
  lateral 
  carinae 
  much 
  below 
  the 
  level 
  of 
  the 
  

   others, 
  longer 
  and 
  somewhat 
  stronger; 
  inferior 
  carina 
  distinct, 
  forming 
  

   with 
  the 
  somewhat 
  raised 
  margins 
  a 
  distinctly 
  concave, 
  subtriangular 
  

   lateral 
  surface 
  for 
  this 
  segment; 
  this 
  condition 
  is 
  not 
  distinct 
  from 
  that 
  

   which 
  appears 
  in 
  the 
  species 
  of 
  Rahrodesmiis, 
  but 
  is 
  more 
  pronounced. 
  

  

  Subsequent 
  segments 
  strongly 
  arched, 
  smooth 
  ; 
  transverse 
  sulcus 
  of 
  

   posterior 
  subsegments 
  deep; 
  sutural 
  constriction 
  deep 
  and 
  long, 
  not 
  

   crenulated; 
  posterior 
  margin 
  of 
  segment 
  scarcely 
  uneven. 
  

  

  Lateral 
  carinae 
  scarcely 
  projecting 
  beyond 
  the 
  posterior 
  margins, 
  

   even 
  on 
  posterior 
  segments; 
  poreless 
  carinae 
  distinct 
  as 
  a 
  narrow 
  ridge; 
  

   poriferous 
  carinae 
  much 
  broader, 
  scarcely 
  more 
  prominent, 
  and 
  appear- 
  

   ing 
  less 
  so 
  as 
  they 
  pass 
  more 
  gradually 
  into 
  the 
  general 
  contour 
  of 
  the 
  

   surface. 
  

  

  Last 
  segment 
  subtriangalar, 
  distinctly 
  though 
  narrowly 
  truncate 
  at 
  

   the 
  apex; 
  somewhat 
  in 
  front 
  of 
  this 
  is 
  a 
  faint 
  corner 
  or 
  tubercle 
  on 
  each 
  

   side. 
  

  

  Anal 
  valves 
  somewhat 
  rugulose, 
  margins 
  distinct, 
  compressed; 
  setif- 
  

   erous 
  prominences 
  broad. 
  

  

  Preaual 
  scale 
  semicircular, 
  faintly 
  and 
  bluntly 
  apiculate; 
  setiferous 
  

   tubercles 
  distinct, 
  close 
  to 
  the 
  apex. 
  

  

  Sterna 
  narrow, 
  sparsely 
  hirsute, 
  not 
  sulcate. 
  

  

  Legs 
  slender, 
  sparsely 
  hirsute; 
  the 
  anterior 
  with 
  distinct 
  pads 
  of 
  

   dense 
  hairs 
  on 
  the 
  inferior 
  ftice 
  of 
  the 
  distal 
  joints, 
  as 
  in 
  Hnhrodesmns. 
  

  

  Copulatory 
  legs 
  shaped 
  much 
  as 
  in 
  llahrodesmus, 
  rather 
  slender; 
  no 
  

   process 
  from 
  near 
  the 
  middle 
  of 
  the 
  last 
  joint, 
  which 
  is 
  divided 
  at 
  apex 
  

   into 
  two 
  slender 
  subconnivent, 
  subequal 
  prongs. 
  

  

  Color 
  pattern 
  probably 
  much 
  as 
  in 
  the 
  species 
  of 
  Hahrodesntits; 
  tlie 
  

   single 
  dried 
  specimen 
  is 
  chestnut 
  brown, 
  lighter 
  below 
  and 
  with 
  a 
  

   narrow 
  pale 
  baud 
  on 
  the 
  posterior 
  margin 
  and 
  carinae 
  of 
  each 
  segment. 
  

  

  Length 
  of 
  broken 
  specimen 
  about 
  20 
  mm.; 
  width 
  2.4 
  mm.; 
  antennae 
  

   and 
  legs 
  bent 
  or 
  broken; 
  probably 
  slightly 
  shorter 
  proportionally 
  than 
  

   in 
  Habrodesmus 
  hartmanni. 
  

  

  Locality. 
  — 
  Abyssinia; 
  a 
  single 
  male 
  specimen 
  collected 
  by 
  Steudner 
  

   at 
  Keren 
  is 
  in 
  the 
  Berlin 
  Museum, 
  No. 
  374. 
  

  

  CNEMODESMUS 
  Cook. 
  

   Cnemodesmus 
  Cook, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mns., 
  XVIII. 
  p. 
  97, 
  1895. 
  

  

  Body 
  rather 
  small 
  and 
  slender, 
  somewhat 
  depressed, 
  not 
  constricted 
  

   behind 
  the 
  first 
  segment. 
  

  

  Carinae 
  distinct 
  and 
  distinctly 
  produced 
  on 
  all 
  segments, 
  bnt 
  not 
  so 
  

   prominent 
  as 
  in 
  Phaeodesmus. 
  

  

  Sterna 
  armed 
  only 
  with 
  slight, 
  rounded 
  prominences 
  at 
  tlie 
  bases 
  

   of 
  the 
  legs; 
  sternum 
  of 
  fourth 
  legs 
  with 
  a 
  rather 
  broad, 
  thin 
  edged, 
  

   truncate 
  and 
  slightly 
  notched 
  process, 
  the 
  lateral 
  sides 
  of 
  whicli 
  are 
  

   distinctly 
  sloping. 
  

  

  Legs 
  long 
  and 
  slender, 
  but 
  more 
  robust 
  than 
  those 
  of 
  the 
  other 
  

   Proc. 
  X. 
  M. 
  vol. 
  XX 
  45 
  

  

  