﻿153 
  

  

  stage, 
  I 
  have 
  found 
  them 
  only 
  on 
  Kuku 
  (Bidens 
  pilosa), 
  but 
  

   commonly 
  on 
  that 
  plant. 
  

  

  Metrarga 
  F. 
  B. 
  White. 
  

  

  This 
  is 
  a 
  curious 
  genus 
  of 
  bark-dwellers, 
  also 
  found 
  in 
  such 
  

   sheltering 
  situations 
  as 
  leie 
  (Freycinetia 
  arhorea) 
  and 
  under 
  

   fallen 
  leaves, 
  etc. 
  

  

  10 
  rmda 
  F. 
  B. 
  White. 
  

  

  The 
  nymphs 
  do 
  not 
  appear 
  to 
  be 
  remarkable, 
  but 
  I 
  have 
  

   seen 
  very 
  limited 
  material. 
  Antennal 
  tubercles 
  acute 
  and 
  

   prominent; 
  eyes 
  not 
  touching 
  pronotum. 
  Pronotum 
  about 
  3 
  

   times 
  as 
  wide 
  as 
  long, 
  the 
  lateral 
  margins 
  laminate 
  and 
  min- 
  

   utely 
  crenulate. 
  Abdomen 
  [laterally 
  sxplanate, 
  odoriferous 
  

   orifices 
  elongate 
  and 
  very 
  short, 
  on 
  fifth 
  and 
  sixth 
  tergites. 
  

  

  Fam. 
  Tingidae. 
  

  

  The 
  metamorphoses 
  of 
  this 
  family 
  are 
  a 
  little 
  better 
  known, 
  

   comparatively, 
  than 
  most 
  of 
  the 
  other 
  Heteropterous 
  families. 
  

   Many 
  of 
  the 
  species 
  seem 
  to 
  be 
  gallmakers. 
  Maecenas 
  pyri 
  pro- 
  

   duces 
  three 
  kinds 
  of 
  spots 
  on 
  leaves, 
  (a) 
  round 
  spots, 
  contain- 
  

   ing 
  excrementa, 
  these 
  being 
  very 
  injurious; 
  (b) 
  raised 
  spots, 
  

   containing 
  an 
  egg 
  in 
  each, 
  (c) 
  minute 
  punctures 
  {^^). 
  

  

  C 
  opium 
  comtdum 
  forms 
  galls 
  in 
  Teucrium 
  chamaedrys 
  C^). 
  

   In 
  other 
  species, 
  the 
  eggs 
  are 
  deposited 
  externally. 
  Nymphal 
  

   instars 
  of 
  various 
  species 
  have 
  been 
  described 
  and 
  figured 
  by 
  

   Felt 
  (^^), 
  Heidemann 
  (^*) 
  and 
  Morrill 
  (^^), 
  the 
  latter 
  figur- 
  

   ing 
  ova 
  also. 
  

  

  (31) 
  Carlet 
  1882 
  C. 
  R. 
  Ac. 
  Paris 
  XCV, 
  1012. 
  

  

  (32) 
  White 
  1877 
  E. 
  M. 
  M. 
  XIII, 
  283; 
  Riibsaamen 
  1895 
  Bull. 
  Soc. 
  Nat. 
  

   Moscou 
  420, 
  PI. 
  XV 
  f. 
  8 
  & 
  PI. 
  XVI 
  f. 
  39. 
  

  

  (33) 
  1904, 
  Bull. 
  N. 
  York 
  Mus. 
  LXXVI, 
  125, 
  Pis. 
  3-4. 
  

  

  (34) 
  P. 
  E. 
  S. 
  Washington 
  VIII, 
  10, 
  f. 
  2-3. 
  

  

  (35) 
  Psyche, 
  1903, 
  X 
  127, 
  PI. 
  3. 
  

  

  