﻿336 
  Mr. 
  H. 
  E. 
  Andrewes 
  on 
  the 
  

  

  Allied 
  to 
  C. 
  bifasciafus 
  Cast. 
  ; 
  head 
  wider, 
  antennae 
  longer, 
  

   prothorax 
  flatter, 
  less 
  coarsely 
  punctured, 
  sides 
  less 
  sharply- 
  

   rounded, 
  hind 
  angles 
  more 
  evident, 
  elytral 
  spots 
  extending 
  

   inwards 
  to 
  stria 
  4 
  only. 
  

  

  2. 
  Chlaenius 
  (Lissauchenius) 
  rufifemoratus. 
  The 
  species 
  

   is 
  figured 
  on 
  the 
  plate 
  (t. 
  1, 
  f. 
  1). 
  Put 
  forward 
  originally 
  

   by 
  Macleay 
  as 
  a 
  subgenus 
  of 
  Panagaeus, 
  Lissauchenius 
  has 
  

   now 
  been 
  merged 
  in 
  the 
  genus 
  Chlaenius. 
  In 
  his 
  " 
  Mono- 
  

   graphie 
  des 
  Chleniens 
  " 
  (Ann. 
  Mus. 
  Civ. 
  Gen. 
  1876, 
  34) 
  

   Chaudoir 
  retains 
  the 
  name 
  for 
  a 
  small 
  group 
  comprising 
  

   Macleay's 
  species 
  and 
  his 
  own 
  C. 
  medioguttatus 
  from 
  India, 
  

   characterised 
  principally 
  by 
  the 
  slender 
  labial 
  palpi 
  with 
  

   a 
  widely 
  dilated, 
  apical 
  joint 
  and 
  an 
  ovate 
  prothorax. 
  

   Macleay 
  considered 
  his 
  insect 
  very 
  near 
  Chlaenius 
  (Carabus) 
  

   posticus 
  Fab. 
  (Suppl. 
  Ent. 
  Syst. 
  1798, 
  57), 
  a 
  species 
  hitherto 
  

   not 
  satisfactorily 
  identified, 
  though 
  Chaudoir 
  (Mon. 
  55) 
  has 
  

   some 
  remarks 
  on 
  it. 
  Wiedemann's 
  Panagaev^ 
  chalco- 
  

   cephalus 
  (Zool. 
  Mag. 
  ii, 
  1, 
  1823, 
  57), 
  which 
  Macleay 
  also 
  

   mentions, 
  belongs 
  almost 
  certainly 
  to 
  Bates' 
  genus 
  Pristo- 
  

   machaerus 
  (Trans. 
  Ent. 
  Soc. 
  1873, 
  323). 
  

  

  The 
  type 
  is 
  unique. 
  Chaudoir 
  describes 
  in 
  his 
  Monograph 
  

   (p. 
  35) 
  a 
  specimen 
  from 
  Siam, 
  which 
  he 
  regarded 
  as 
  belong- 
  

   ing 
  to 
  Macleay's 
  species. 
  As 
  I 
  am 
  not 
  convinced 
  of 
  this, 
  I 
  

   think 
  it 
  best 
  to 
  give 
  a 
  detailed 
  description. 
  

  

  Chlaenius 
  rufifemoratus, 
  (^. 
  Length 
  11 
  mill. 
  Width 
  

   3-5 
  mill. 
  

  

  Black, 
  head 
  and 
  thorax 
  dark 
  metallic 
  green; 
  elytra 
  very 
  dark 
  

   bine 
  with 
  a 
  moderately 
  large 
  yellow 
  spot 
  on 
  each, 
  the 
  centre 
  of 
  which 
  

   is 
  at 
  about 
  tliree-fifths 
  from 
  base 
  ; 
  femora 
  (except 
  apex) 
  and 
  hind 
  

   trochanters 
  red, 
  apex 
  of 
  mandibles, 
  first 
  joint 
  of 
  antennae, 
  labial 
  

   palpi 
  and 
  apex 
  of 
  maxillary 
  palpi 
  more 
  or 
  less 
  tinged 
  with 
  red. 
  

  

  Head 
  shiny, 
  long, 
  contracted 
  at 
  neck, 
  flat 
  and 
  smooth 
  in 
  front, 
  with 
  

   shallow 
  foveae, 
  some 
  longitudinal 
  wrinkles 
  near 
  eyes, 
  and 
  a 
  narrow 
  

   furrow 
  along 
  margins 
  to 
  behind 
  eyes, 
  vertex 
  and 
  sides 
  of 
  front 
  finely 
  

   and 
  sparsely 
  punctured 
  ; 
  eyes 
  rather 
  prominent 
  ; 
  labrum 
  a 
  little 
  

   emarginate 
  ; 
  antennae 
  with 
  joint 
  1 
  = 
  3, 
  4 
  a 
  shade 
  longer 
  (remainder 
  

   wanting); 
  last 
  joint 
  of 
  maxillary 
  palpi 
  slightly 
  dilated 
  to 
  middle, 
  

   then 
  cylindrical 
  to 
  apex, 
  which 
  is 
  obliquely 
  truncate; 
  penultimate 
  

   joint 
  of 
  labial 
  palpi 
  compressed 
  and 
  slightly 
  curved, 
  apical 
  joint 
  

   nearly 
  as 
  long 
  as 
  penultimate, 
  at 
  base 
  strongly 
  but 
  then 
  gradually 
  

   dilated, 
  flattened, 
  subtruncate, 
  and 
  rather 
  hollowed 
  out 
  at 
  apex. 
  

  

  Prothorax 
  narrow, 
  not 
  much 
  wider 
  than 
  head, 
  elliptical 
  with 
  trun- 
  

   cated 
  ends, 
  very 
  little 
  broader 
  behind 
  than 
  in 
  front, 
  no 
  sinuation 
  

  

  