﻿488 
  Mr. 
  T. 
  D. 
  A. 
  Cockerell 
  — 
  Descrijytions 
  and 
  

  

  punctured, 
  but 
  shining, 
  not 
  keeled, 
  tlie 
  lower 
  margin 
  finely 
  

   creuulate 
  or 
  nodulose 
  ; 
  supraclypeal 
  area 
  shining, 
  sparsely 
  

   punctured 
  in 
  middle 
  ; 
  vertex, 
  mesothorax, 
  and 
  scutellum 
  

   closely 
  and 
  finely 
  punctured 
  ; 
  hair 
  of 
  thorax 
  white, 
  abundant, 
  

   but 
  black 
  on 
  disc 
  of 
  mesothorax, 
  and 
  much 
  long 
  black 
  hair 
  

   on 
  scutellum 
  ; 
  tegulae 
  dark 
  brown. 
  Wings 
  slightly 
  dusky. 
  

   Legs 
  with 
  silvery 
  hairs, 
  those 
  on 
  inner 
  side 
  of 
  tarsi 
  orange- 
  

   ferruginous 
  ; 
  spurs 
  ferruginous 
  ; 
  hind 
  basitarsi 
  broad 
  and 
  

   flat. 
  Abdomen 
  black 
  between 
  the 
  bands, 
  with 
  short 
  black 
  

   hair. 
  

  

  Hub. 
  Formosa 
  (Sauter). 
  Two 
  females 
  in 
  Berlin 
  Museum. 
  

   The 
  type 
  is 
  from 
  Taihanroku, 
  June 
  11, 
  1908; 
  the 
  other 
  

   from 
  Takao, 
  Oct. 
  1, 
  1907. 
  

  

  Megachile 
  rixator, 
  sp. 
  n. 
  

  

  ? 
  . 
  — 
  Length 
  about 
  12 
  mm. 
  

  

  Black 
  (including 
  legs), 
  but 
  flagellum 
  ferruginous 
  beneath 
  ; 
  

   form 
  rather 
  narrow 
  and 
  parallel-sided 
  ; 
  pubescence 
  pale 
  

   ochreous, 
  white 
  ventrally, 
  the 
  ventral 
  scopa 
  white 
  at 
  base, 
  

   otherwise 
  light 
  fulvous, 
  strongly 
  fulvous 
  apically 
  ; 
  general 
  

   form 
  and 
  appearance 
  (except 
  for 
  the 
  yellowish 
  pubescence) 
  

   like 
  the 
  American 
  M. 
  solecladensis, 
  Ckll. 
  

  

  Mandibles 
  quadridentate 
  ; 
  clypeus 
  densely 
  punctured, 
  but 
  

   with 
  a 
  broad 
  shining 
  median 
  low 
  ridge, 
  not 
  amounting 
  to 
  a 
  

   keel 
  ; 
  supraclypeal 
  area 
  with 
  its 
  lower 
  part 
  bare 
  and 
  shining, 
  

   front 
  covered 
  with 
  dense 
  ochreous 
  hair, 
  with 
  no 
  black 
  inter- 
  

   mixed 
  ; 
  hair 
  of 
  vertex 
  rather 
  dark 
  reddish 
  ; 
  vertex 
  with 
  fine 
  

   punctures 
  ; 
  mesothorax 
  and 
  scutellum 
  finely 
  and 
  very 
  densely 
  

   punctured 
  ; 
  thorax 
  thickly 
  clothed 
  with 
  ochreous 
  hair, 
  short 
  

   and 
  darker, 
  but 
  not 
  fuscous, 
  above, 
  white 
  beneath 
  ; 
  tegulse 
  

   reddish 
  with 
  pallid 
  margins. 
  Wings 
  slightly 
  dusky. 
  Legs 
  

   with 
  shining 
  white 
  and 
  pale 
  yellow 
  hair, 
  ferruginous 
  on 
  inner 
  

   stele 
  of 
  tarsi 
  ; 
  hind 
  basitarsus 
  broad 
  and 
  flat 
  ; 
  spurs 
  very 
  pale 
  ; 
  

   claws 
  with 
  a 
  basal 
  tooth. 
  First 
  abdominal 
  segment 
  with 
  much 
  

   ochreous 
  hair, 
  the 
  others 
  with 
  conspicuous 
  narrow 
  entire 
  

   ochreous 
  hair-bands; 
  apical 
  segment 
  obliquely 
  descending, 
  

   its 
  lateral 
  profile 
  making 
  an 
  angle 
  of 
  perhaps 
  45 
  degrees. 
  

  

  Hub. 
  Takao, 
  Formosa, 
  Sept. 
  29, 
  1907 
  (Sauter). 
  Two 
  

   females 
  in 
  Berlin 
  Museum. 
  

  

  A 
  series 
  of 
  19 
  other 
  females 
  collected 
  by 
  Sauter 
  in 
  

   Formosa 
  were 
  at 
  first 
  separated 
  on 
  superficial 
  appearances, 
  

   seeming 
  smaller 
  and 
  more 
  compact 
  (length 
  9 
  to 
  10 
  mm), 
  

   with 
  cordate 
  abdomen. 
  These 
  prove 
  on 
  examination 
  to 
  be 
  

   M. 
  rixator, 
  varying 
  in 
  size, 
  and 
  with 
  the 
  abdomen 
  retracted. 
  

   They 
  are 
  all 
  from 
  Takao, 
  collected 
  in 
  September 
  and 
  

   October. 
  

  

  