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  one 
  structure. 
  Its 
  function 
  may 
  be 
  to 
  strengthen 
  the 
  connection 
  

   between 
  the 
  parts 
  and 
  insure 
  their 
  mutual 
  action. 
  

  

  The 
  aspect 
  of 
  figure 
  5 
  in 
  Plate 
  I 
  is 
  ventral 
  to 
  show 
  the 
  inner 
  

   surface. 
  This 
  is 
  the 
  epipharynx 
  on 
  which 
  occur 
  the 
  sense-pits 
  

   of 
  taste. 
  These 
  structures 
  agree 
  with 
  the 
  descriptions 
  of 
  the 
  

   "pits" 
  or 
  "cups" 
  and 
  "hairs" 
  of 
  taste 
  as 
  given 
  by 
  Packard. 
  

  

  That 
  part 
  labeled 
  sub-mentum 
  (sin) 
  in 
  Plate 
  I, 
  figure 
  i, 
  is 
  

   shown 
  greatly 
  enlarged 
  in 
  figure 
  3. 
  In 
  a 
  higher 
  genus 
  repre- 
  

   sented 
  by 
  Macroxyela 
  fcrrugi)ica 
  (Plate 
  I, 
  figure 
  4) 
  we 
  have 
  the 
  

   same 
  structure 
  more 
  closely 
  related 
  to 
  the 
  mentum. 
  

  

  In 
  Plate 
  I, 
  figure 
  3, 
  is 
  seen 
  a 
  chitinized 
  portion 
  of 
  the 
  membrane 
  

   connecting 
  the 
  proximate 
  ends 
  of 
  the 
  cardo 
  (cd). 
  This 
  structure 
  

   was 
  not 
  followed 
  out 
  but 
  it 
  may 
  be 
  that 
  it 
  can 
  be 
  homologized 
  to 
  

   the 
  lora 
  in 
  the 
  honey-bee 
  mouth-parts. 
  The 
  mouth-parts 
  as 
  a 
  

   whole 
  are 
  plainly 
  orthopterous 
  in 
  type 
  and 
  the 
  various 
  parts 
  by 
  

   their 
  position 
  and 
  structure 
  can 
  be 
  homologized 
  but 
  only 
  in 
  so 
  

   far 
  as 
  the 
  position 
  and 
  structure 
  are 
  concerned. 
  

  

  ExHIBIBITIONS 
  AND 
  NoTES. 
  

  

  Mr. 
  Perkins 
  exhibited 
  the 
  male 
  and 
  female 
  of 
  a 
  moth, 
  a 
  species 
  

   of 
  Epipyrops, 
  together 
  with 
  their 
  host, 
  an 
  Australian 
  hopper. 
  A 
  

   study 
  of 
  the 
  venation 
  shows 
  this 
  species 
  to 
  be 
  allied 
  to 
  Tineidae 
  

   and 
  Psychidae. 
  

  

  Mr. 
  Kirkaldy 
  exhibited 
  a 
  volume 
  of 
  a 
  German 
  translation 
  of 
  

   DeGeer's 
  "Memoirs," 
  published 
  from 
  1770-1780. 
  Mr. 
  Kirkaldy 
  

   related 
  that 
  DeGeer 
  destroyed 
  almost 
  all 
  the 
  copies 
  of 
  the 
  first 
  

   volume 
  of 
  the 
  original 
  edition 
  soon 
  after 
  it 
  appeared 
  ; 
  he 
  also 
  

   stated 
  that 
  it 
  contains 
  a 
  good 
  many 
  notes 
  on 
  the 
  habits 
  of 
  the 
  

   insects 
  treated 
  of. 
  

  

  Dr. 
  Evans 
  related 
  some 
  interesting 
  experiences 
  with 
  the 
  fire 
  

   flies 
  (Pyrophora) 
  in 
  Porto 
  Rico. 
  He 
  also 
  spoke 
  of 
  the 
  very 
  in- 
  

   jurious 
  mole-cricket 
  {Scapteriscus 
  didactylus 
  Latr.). 
  The 
  Porto 
  

   Ricans 
  are 
  convinced 
  that 
  this 
  mole 
  cricket, 
  or 
  Changa 
  as 
  they 
  

   call 
  it, 
  was 
  brought 
  there 
  in 
  a 
  cargo 
  of 
  guano 
  twenty-seven 
  years 
  

   ago. 
  It 
  is 
  a 
  strong 
  flyer, 
  burrows 
  in 
  the 
  ground, 
  is 
  very 
  destruct- 
  

   ive 
  to 
  all 
  kinds 
  of 
  vegetation, 
  and 
  seems 
  to 
  prefer 
  dry, 
  loose, 
  sandy 
  

   soil. 
  

  

  