﻿of 
  undescrihed 
  Chinese 
  Hymenoptera. 
  41 
  

  

  hairs 
  on 
  the 
  vertex, 
  and 
  a 
  little 
  yellow 
  pubescence 
  on 
  the 
  sides 
  

   of 
  the 
  metathorax. 
  

  

  The 
  male 
  exactly 
  corresponds 
  with 
  the 
  female, 
  differing 
  only 
  

   in 
  having 
  the 
  antennae, 
  as 
  usual, 
  elongated, 
  and 
  in 
  having 
  on 
  each 
  

   side 
  of 
  the 
  second 
  segment 
  of 
  the 
  abdomen 
  an 
  oblique, 
  indistinct, 
  

   pale 
  stripe 
  running 
  inwards, 
  and 
  also 
  two 
  minute 
  pale 
  dots. 
  

  

  Crocisa 
  decora. 
  

  

  Female. 
  — 
  Black 
  ; 
  the 
  face, 
  below 
  the 
  base 
  of 
  antennae, 
  clothed 
  

   with 
  pale 
  blue 
  pubescence 
  ; 
  most 
  sparingly 
  so 
  on 
  the 
  clypeus 
  ; 
  a 
  

   continuous 
  fringe 
  of 
  similar 
  pubescence 
  behind 
  the 
  eyes 
  and 
  along 
  

   the 
  margin 
  of 
  the 
  vertex. 
  Thorax, 
  a 
  stripe 
  on 
  the 
  collar, 
  another 
  

   in 
  the 
  centre 
  of 
  the 
  mesothorax, 
  reaching 
  the 
  disk, 
  a 
  dot 
  on 
  each 
  

   side 
  opposite 
  the 
  tegulae, 
  which 
  have 
  a 
  spot 
  behind, 
  and 
  also 
  an 
  

   epaulet, 
  and 
  two 
  round 
  spots 
  on 
  the 
  posterior 
  margin 
  of 
  the 
  meso- 
  

   thorax, 
  of 
  blue 
  pubescence 
  ; 
  on 
  the 
  sides 
  of 
  the 
  metathorax 
  a 
  

   patch 
  of 
  long 
  white 
  pubescence 
  ; 
  beneath 
  the 
  wings 
  is 
  a 
  stripe 
  of 
  

   blue 
  pubescence, 
  curving 
  forwards, 
  and 
  then 
  recurving 
  under 
  the 
  

   wings 
  ; 
  the 
  basal 
  joint 
  of 
  all 
  the 
  tarsi 
  above, 
  the 
  anterior 
  and 
  inter- 
  

   mediate 
  tibiae 
  above, 
  and 
  a 
  spot 
  at 
  the 
  base 
  of 
  the 
  posterior 
  tibiae, 
  

   of 
  blue 
  pubescence. 
  The 
  scutellum 
  slightly 
  rounded 
  at 
  the 
  sides, 
  

   and 
  deeply 
  notched 
  behind. 
  The 
  first 
  segment 
  of 
  the 
  abdomen 
  

   has 
  a 
  transverse 
  fascia 
  at 
  its 
  base, 
  and 
  another 
  a 
  little 
  before 
  its 
  

   apical 
  margin, 
  united 
  to 
  each 
  other 
  at 
  the 
  sides 
  ; 
  the 
  four 
  following 
  

   segments 
  have 
  a 
  central 
  fascia, 
  very 
  slightly 
  interrupted 
  in 
  the 
  

   middle, 
  of 
  blue 
  pubescence 
  ; 
  the 
  anterior 
  wings 
  dark 
  fuscous, 
  

   having 
  the 
  externo- 
  and 
  interno-medial 
  cells, 
  the 
  first 
  discoidal, 
  

   and 
  a 
  spot 
  in 
  the 
  first 
  submarginal 
  cell, 
  hyaline. 
  The 
  entire 
  in- 
  

   sect 
  deeply 
  punctured. 
  

  

  The 
  only 
  species 
  of 
  the 
  genus, 
  which 
  closely 
  resembles 
  this, 
  is 
  

   one 
  which 
  comes 
  plentifully 
  from 
  Africa, 
  but 
  that 
  species 
  may 
  at 
  

   once 
  be 
  recognized 
  as 
  distinct, 
  by 
  its 
  being 
  delicately 
  punctured, 
  

   and 
  the 
  pubescence 
  of 
  a 
  much 
  paler 
  colour. 
  

  

  Xylocopa 
  appendiculata. 
  

  

  Female. 
  — 
  Black; 
  the 
  antennae 
  slightly 
  piceous 
  beneatli 
  ; 
  the 
  

   thorax, 
  above 
  and 
  on 
  the 
  sides, 
  clothed 
  with 
  bright 
  yellow 
  pubes- 
  

   cence 
  ; 
  the 
  wings 
  fuscous, 
  darkest 
  towards 
  their 
  apical 
  margins, 
  

   and 
  having 
  a 
  bright 
  prismatic 
  reflection 
  ; 
  the 
  abdomen 
  punctured, 
  

   and 
  fringed 
  at 
  the 
  apex 
  with 
  black 
  hair. 
  

  

  Male. 
  — 
  Black 
  ; 
  the 
  clypeus, 
  the 
  scape 
  of 
  the 
  antennae 
  in 
  front, 
  

   and 
  the 
  apical 
  joints 
  beneath, 
  yellowish 
  wliite; 
  the 
  thorax, 
  above 
  

  

  