﻿318 
  Mr. 
  K. 
  G. 
  Blair- 
  A 
  Revision 
  of 
  

  

  PsEUDOPYROCHROAj 
  Pic. 
  

  

  This 
  genus 
  was 
  proposed 
  by 
  Pic 
  for 
  the 
  reception 
  of 
  some 
  

   of 
  the 
  Eastern 
  species 
  of 
  Pyrochroa 
  with 
  small 
  heads 
  nar- 
  

   rowed 
  behind 
  the 
  eyes. 
  The 
  type 
  may 
  be 
  taken 
  as 
  P. 
  de- 
  

   planuta, 
  Pic. 
  Certain 
  other 
  species 
  Pic 
  at 
  first 
  referred 
  to 
  

   Schizotas, 
  Newm., 
  but 
  later 
  (^' 
  Melanges 
  Exotico-Entomolo- 
  

   giques/ 
  fasc. 
  8, 
  1913, 
  p. 
  2) 
  stated 
  that 
  he 
  had 
  been 
  mis- 
  

   taken 
  in 
  this 
  genus, 
  and 
  that 
  all 
  were 
  probably 
  referable 
  to 
  

   Pseudopyrochioa. 
  With 
  this 
  opinion 
  1 
  quite 
  concur 
  ; 
  also, 
  

   the 
  Japanese 
  species 
  referred 
  by 
  Lewis 
  to 
  Schizotus 
  should 
  

   for 
  the 
  present 
  be 
  retained, 
  with 
  his 
  Japanese 
  Pyrochroa, 
  in 
  

   Pseudopyrochroa, 
  Pic. 
  

  

  The 
  genus, 
  however, 
  as 
  here 
  adopted, 
  is 
  by 
  no 
  means 
  

   homogeneous, 
  and 
  lends 
  itself 
  well 
  to 
  further 
  subdivision 
  

   upon 
  the 
  cliaracters 
  afforded 
  by 
  the 
  head 
  and 
  antennae, 
  

   particularly 
  in 
  the 
  male 
  sex. 
  Unfortunately, 
  so 
  many 
  of 
  the 
  

   species 
  are 
  yet 
  known 
  from 
  one 
  sex 
  only 
  that 
  a 
  complete 
  

   subdivision 
  on 
  these 
  lines 
  is 
  for 
  the 
  present 
  impossible. 
  

   From 
  the 
  point 
  of 
  view 
  of 
  practical 
  utility, 
  I 
  have 
  found 
  

   colour 
  the 
  most 
  satisfactory 
  basis 
  for 
  tabulation, 
  but 
  the 
  

   present 
  attempt 
  is 
  intended 
  merely 
  as 
  a 
  temporary 
  measure, 
  

   in 
  the 
  hope 
  of 
  stimulating 
  further 
  study 
  of 
  the 
  genus, 
  and 
  so, 
  

   by 
  helping 
  to 
  fill 
  up 
  some 
  of 
  the 
  more 
  vital 
  gaps 
  in 
  our 
  know- 
  

   ledge 
  of 
  it, 
  preparing 
  the 
  way 
  for 
  a 
  more 
  scientific 
  classifi- 
  

   cation 
  at 
  some 
  future 
  date. 
  It 
  is 
  probable 
  that 
  in 
  the 
  Oriental 
  

   species 
  the 
  colours 
  are 
  liable 
  to 
  very 
  considerable 
  variation, 
  

   and 
  that 
  as 
  longer 
  series 
  become 
  available 
  lor 
  study 
  (many 
  

   of 
  the 
  species 
  have 
  been 
  described 
  upon 
  unique 
  specimens) 
  

   many 
  so-called 
  species 
  will 
  have 
  to 
  be 
  sunk 
  as 
  mere 
  colour- 
  

   varieties. 
  

  

  The 
  term 
  "striped/^ 
  as 
  applied 
  to 
  the 
  elytra, 
  may, 
  perhaps, 
  

   require 
  explanation. 
  Various 
  authors 
  use 
  the 
  term 
  " 
  costate 
  " 
  

   for 
  the 
  same 
  effect 
  ; 
  but, 
  though 
  true 
  costse 
  may, 
  in 
  some 
  

   cases 
  at 
  any 
  rate, 
  be 
  present, 
  the 
  effect 
  is 
  produced 
  by 
  the 
  

   pubescence 
  sloping 
  in 
  different 
  directions 
  in 
  alternate 
  longi- 
  

   tudinal 
  bands, 
  very 
  much 
  like 
  the 
  grass 
  in 
  a 
  lawn 
  that 
  has 
  

   been 
  recently 
  rolled. 
  

  

  The 
  term 
  " 
  serrate 
  pectinate/'' 
  as 
  applied 
  to 
  the 
  antennae, 
  

   means 
  that 
  there 
  is 
  a 
  double 
  series 
  of 
  pectinations 
  — 
  an 
  upper 
  

   inner 
  series, 
  usually 
  short 
  and 
  stout, 
  and 
  a 
  lower 
  series 
  of 
  

   long 
  slender 
  branches 
  (e. 
  g., 
  P. 
  diver 
  sicornis, 
  Blr., 
  PI. 
  XII. 
  

   fig. 
  10, 
  in 
  which 
  the 
  serrations 
  are 
  unusually 
  well 
  developed). 
  

   This 
  means 
  that 
  each 
  of 
  the 
  joints 
  concerned 
  is 
  produced 
  at 
  

   its 
  apex 
  into 
  two 
  distinct 
  branches, 
  one 
  short 
  and 
  stout, 
  the 
  

   other 
  long 
  and 
  slender. 
  A 
  somewhat 
  similar 
  appearance 
  is 
  

   sometimes 
  produced 
  b}' 
  an 
  antenna 
  like 
  that 
  of 
  P. 
  dimidiaia, 
  

  

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