﻿Manchester 
  Memoirs, 
  Vol. 
  xlii. 
  (1898), 
  No. 
  11. 
  yy 
  

  

  (Generic 
  Arrangement 
  of 
  the 
  Bees 
  allied 
  to 
  Melissodes 
  and 
  

   Anthophora. 
  Bull. 
  U.S. 
  Geol. 
  Snrv. 
  Territ., 
  v., 
  p. 
  471) 
  gives 
  

   also 
  five 
  joints 
  for 
  Tetralonia, 
  but 
  it 
  is 
  not 
  clear 
  to 
  me 
  if 
  he 
  

   has 
  himself 
  examined 
  the 
  genus 
  or 
  gives 
  a 
  quotation 
  from 
  

   Latreille. 
  Melissodes 
  Latr. 
  is 
  described 
  in 
  full 
  by 
  Patton 
  

   {I.e., 
  p. 
  472) 
  ; 
  it 
  has, 
  like 
  our 
  species, 
  4-jointed 
  maxillary 
  

   palpi, 
  " 
  the 
  fourth 
  joint 
  often 
  minute," 
  which 
  does 
  not 
  

   conform 
  to 
  our 
  Indian 
  species 
  any 
  more 
  than 
  does 
  his 
  

   description 
  of 
  the 
  first 
  joint 
  of 
  the 
  labial 
  palpi 
  being 
  twice 
  

   the 
  length 
  of 
  the 
  second. 
  In 
  other 
  respects 
  our 
  species 
  do 
  

   not 
  quite 
  fit 
  into 
  Patton's 
  diagnosis. 
  Further, 
  they 
  do 
  

   not 
  agree 
  with 
  each 
  other 
  in 
  the 
  form 
  of 
  the 
  palpi. 
  For 
  

   those 
  species 
  with 
  6-jointed 
  maxillary 
  palpi, 
  Patton 
  estab- 
  

   lished 
  {I.e., 
  p. 
  473) 
  the 
  genus 
  Synhalonia, 
  representing 
  

   Macrocera 
  Lep., 
  Tetralonia 
  Sm., 
  and 
  Melissodes 
  Cresson, 
  

   nee 
  Latr. 
  ; 
  but 
  it 
  can 
  hardly 
  be 
  regarded 
  as 
  generically 
  

   identical 
  with 
  our 
  species. 
  Taschenberg 
  {Berl. 
  Entom. 
  

   Zeits., 
  xxvii., 
  p. 
  78) 
  groups 
  the 
  genera 
  under 
  Macrocera 
  

   (an 
  inadmissible 
  name, 
  being 
  preoccupied 
  in 
  Diptera); 
  

   Melissodes 
  Latr. 
  with 
  4-jointed 
  maxillary 
  palpi; 
  Macrocei 
  a 
  

   sen. 
  str. 
  with 
  them 
  5 
  -jointed 
  ; 
  Xenoglossa 
  Sm. 
  with 
  them 
  

   also 
  5 
  -jointed 
  ; 
  Synhalonia 
  with 
  them 
  6-jointed 
  and 
  

   Ancyloscelis, 
  of 
  which 
  the 
  palpal 
  characters 
  are 
  not 
  given, 
  

   but 
  which 
  is 
  treated 
  by 
  Smith 
  {Cat. 
  Hym., 
  ii., 
  p. 
  365) 
  as 
  a 
  

   doubtful 
  synonym 
  of 
  Tetrapedia 
  Klug, 
  a 
  very 
  different 
  

   genus 
  from 
  Tetralonia. 
  As 
  Mr. 
  Rothney's 
  9 
  differs 
  in 
  

   many 
  respects 
  from 
  Mr. 
  Wroughton's 
  male 
  and 
  from 
  the 
  

   described 
  genera, 
  I 
  give 
  a 
  generic 
  description 
  of 
  it 
  here, 
  

   leaving 
  it 
  for 
  further 
  investigation 
  to 
  decide 
  whether 
  the 
  

   points 
  of 
  difference 
  in 
  the 
  palpal 
  and 
  other 
  characters 
  are 
  

   of 
  generic, 
  sub-generic, 
  or 
  of 
  mere 
  specific 
  importance. 
  

  

  ?. 
  Antennae 
  shorter 
  than 
  the 
  thorax 
  ; 
  ocelli 
  .'. 
  Man- 
  

   dibles 
  without 
  teeth. 
  Tongue 
  not 
  elongate, 
  if 
  anything 
  

   shorter 
  than 
  the 
  palpi 
  ; 
  the 
  apex 
  ending 
  in 
  a 
  button 
  ; 
  

   paraglossae 
  a 
  little 
  longer 
  than 
  the 
  tongue 
  ; 
  densely 
  pilose 
  ; 
  

  

  