﻿XXV 
  

  

  they 
  are 
  almost 
  as 
  long 
  as 
  the 
  body 
  of 
  the 
  moth, 
  or 
  curled 
  

   up 
  as 
  you 
  see 
  them 
  in 
  the 
  dead 
  specimen. 
  I 
  have 
  never 
  seen 
  

   anything 
  similar 
  before 
  or 
  since." 
  

  

  Harrisina 
  coracina, 
  Clem., 
  ^ 
  (Zygaeninae), 
  from 
  St. 
  Vincent, 
  

   Dec. 
  11, 
  1917. 
  The 
  structures 
  described 
  are 
  male 
  secondary 
  

   sexual 
  characters, 
  and 
  are 
  doubtless 
  of 
  epigamic 
  significance. 
  

   Their 
  eversion 
  is 
  almost 
  certain 
  to 
  be 
  effected 
  as 
  Mr. 
  WiUiams 
  

   suggests, 
  and 
  introversion 
  by 
  an 
  axial 
  muscle 
  attached 
  to 
  

   the 
  inside 
  of 
  each 
  apex. 
  Observations 
  on 
  their 
  use 
  in 
  courtship 
  

   would 
  be 
  extremely 
  interesting. 
  

  

  (4) 
  " 
  When 
  in 
  Panama 
  last 
  year, 
  I 
  got 
  20 
  or 
  so 
  small 
  

   Lepidoptera 
  from 
  the 
  fur 
  of 
  a 
  Three 
  Toed 
  Sloth 
  just 
  shot. 
  

   As 
  soon 
  as 
  the 
  body 
  fell 
  to 
  the 
  ground 
  they 
  started 
  flying 
  from 
  

   it 
  like 
  Hippoboscids 
  from 
  a 
  large 
  bird. 
  I 
  think 
  quite 
  as 
  many 
  

   again 
  escaped, 
  so 
  that 
  there 
  must 
  have 
  been 
  40 
  or 
  50 
  on 
  the 
  

   one 
  animal. 
  I 
  made 
  a 
  very 
  close 
  search 
  over 
  the 
  skin 
  the 
  

   same 
  day, 
  but 
  could 
  find 
  no 
  trace 
  whatever 
  of 
  caterpillars, 
  

   nor 
  did 
  the 
  fur 
  seem 
  in 
  any 
  way 
  damaged. 
  I 
  was 
  assured 
  

   by 
  a 
  local 
  hunter 
  that 
  every 
  sloth 
  that 
  he 
  has 
  shot 
  has 
  these 
  

   moths 
  vipon 
  it. 
  

  

  " 
  I 
  see 
  there 
  is 
  a 
  mention 
  of 
  a 
  moth 
  living 
  on 
  a 
  sloth 
  in 
  

   the 
  ' 
  Cambridge 
  Natural 
  History,' 
  but 
  without 
  reference 
  or 
  

   identification. 
  In 
  the 
  hopes 
  that 
  they 
  may 
  be 
  of 
  interest 
  I 
  

   am 
  sending 
  specimens 
  by 
  this 
  mail 
  and 
  should 
  be 
  glad 
  of 
  their 
  

   name 
  or 
  any 
  information 
  about 
  them." 
  

  

  The 
  moths 
  were 
  8 
  <? 
  and 
  3 
  $ 
  of 
  Cryptoses 
  cJwlaepi, 
  Dyar 
  

   {Pyralidae, 
  Semnianae), 
  from 
  Chiriquicito, 
  Panama, 
  March 
  12, 
  

   1917. 
  Mr. 
  Williams 
  obtained 
  altogether 
  13 
  ^ 
  and 
  5 
  ?. 
  The 
  

   females 
  are 
  larger, 
  with 
  rounder 
  wings 
  and 
  duller 
  markings, 
  

   but 
  otherwise 
  similar 
  in 
  appearance 
  to 
  the 
  males. 
  The 
  larvae 
  

   are 
  believed 
  to 
  feed 
  on 
  the 
  symbiotic 
  alga 
  to 
  which 
  the 
  sloth 
  

   owes 
  its 
  greenish 
  colour. 
  The 
  sloth-haunting 
  moth 
  mentioned 
  

   in 
  the 
  " 
  Cambridge 
  Natural 
  History," 
  Insecta, 
  II, 
  p. 
  430, 
  is 
  

   spoken 
  of 
  as 
  a 
  Tinea, 
  but 
  the 
  only 
  three 
  species 
  known 
  to 
  

   have 
  these 
  habits 
  are 
  Pyrales, 
  belonging 
  to 
  the 
  Semnianae 
  

   [Chrysauginae) 
  . 
  Sir 
  George 
  Hampson 
  has 
  kindly 
  given 
  the 
  

   names 
  and 
  references 
  : 
  

  

  " 
  Bradypodicola 
  hahneli, 
  Spider, 
  Biol. 
  Centralbl., 
  xxvi, 
  pp. 
  

   G90-7 
  (1906). 
  Amazons. 
  

  

  