﻿j6 
  CAMERON, 
  Hymcnoptcra 
  Oricntalia. 
  

  

  punctured 
  ; 
  the 
  labrum 
  fringed 
  with 
  long, 
  pale 
  hair. 
  

   Mandibles 
  black, 
  shining, 
  the 
  base 
  covered 
  with 
  long, 
  

   fuscous, 
  intermixed 
  with 
  shorter, 
  silvery 
  hair 
  ; 
  their 
  apices 
  

   shining, 
  armed 
  with 
  one 
  large, 
  somewhat 
  triangular, 
  tooth 
  

   at 
  the 
  apex 
  ; 
  the 
  base 
  strongly 
  punctured. 
  Antennae 
  

   short, 
  black, 
  the 
  apical 
  half 
  dull 
  rufous 
  on 
  the 
  under 
  side 
  ; 
  

   the 
  scape 
  with 
  a 
  few 
  short 
  hairs 
  ; 
  the 
  flagellum 
  bare, 
  

   shining. 
  Pro- 
  and 
  meso-notum 
  thickly 
  covered 
  with 
  

   longish 
  hair 
  ; 
  longer 
  and 
  paler 
  on 
  the 
  pronotum 
  ; 
  closely 
  

   rugose 
  ; 
  the 
  scutellum, 
  if 
  anything, 
  more 
  strongly 
  rugose 
  

   and 
  with 
  the 
  hair 
  longer 
  ; 
  the 
  median 
  segment 
  with 
  a 
  

   perpendicular 
  slope, 
  thickly 
  covered 
  with 
  long, 
  pale 
  hair. 
  

   Pleurae 
  thickly 
  covered 
  with 
  long, 
  black 
  hair; 
  the 
  lower 
  

   part 
  of 
  the 
  mesopleurse 
  excavated, 
  shining; 
  the 
  lower 
  part 
  

   of 
  the 
  metapleurae 
  smooth. 
  Abdomen 
  shining, 
  pilose, 
  the 
  

   segments 
  fringed 
  with 
  white 
  hair 
  ; 
  the 
  ventral 
  surface 
  

   thickly 
  covered 
  with 
  longish, 
  stiff, 
  blackish 
  hair. 
  Femora 
  

   sparsely; 
  the 
  tibia? 
  and 
  tarsi 
  very 
  thickly 
  covered 
  with 
  

   long, 
  black 
  hair; 
  the 
  fore 
  coxa? 
  simple, 
  not 
  spined. 
  

  

  TETRALONIA. 
  

   Under 
  this 
  generic 
  name 
  Bingham 
  describes 
  two 
  

   species 
  — 
  T. 
  duvancelii 
  Lep. 
  = 
  elegans 
  Sm., 
  and 
  T. 
  Jiiuia- 
  

   layensis 
  Bing. 
  In 
  these 
  two 
  species 
  the 
  maxillary 
  palpi 
  

   are 
  said 
  to 
  be 
  6-jointed. 
  Whether 
  this 
  is 
  an 
  original 
  

   observation, 
  or 
  merely 
  copied 
  from 
  Smith 
  {Cat. 
  Hym. 
  y 
  ii., 
  

   p. 
  297), 
  who 
  also 
  gives 
  six 
  joints 
  to 
  the 
  maxillary 
  palpi 
  of 
  

   Tctralonia, 
  I 
  am 
  unable 
  to 
  say. 
  Apart 
  from 
  the 
  difference 
  

   in 
  the 
  number 
  of 
  palpal 
  joints, 
  my 
  species 
  agrees 
  in 
  the 
  

   other 
  generic 
  characters 
  with 
  Tctralonia 
  as 
  given 
  by 
  

   Bingham. 
  In 
  both 
  the 
  species 
  here 
  described 
  the 
  maxil- 
  

   lary 
  palpi 
  have 
  only 
  four 
  joints, 
  as 
  have 
  also 
  the 
  labial. 
  

   Latreille, 
  who 
  first 
  described 
  Tctralonia, 
  gives 
  five 
  as 
  the 
  

   number 
  of 
  joints 
  in 
  the 
  maxillary 
  palpi, 
  this 
  being 
  likewise 
  

   the 
  number 
  in 
  Smith's 
  genus 
  Xenoglossa. 
  Mr. 
  W. 
  H. 
  Patton 
  

  

  