﻿466 
  JOURNAL 
  OF 
  THE 
  WASHINGTON 
  ACADEMY 
  OF 
  SCIENCES 
  VOL. 
  12, 
  NO, 
  20 
  

  

  detailed 
  a 
  specialist 
  to 
  proceed 
  to 
  the 
  Orient 
  and 
  obtain 
  parasites 
  for 
  the 
  

   control 
  of 
  this 
  pest. 
  This 
  work 
  was 
  so 
  successful 
  that 
  one 
  of 
  the 
  parasites 
  

   {Scolia 
  manilae 
  Ashm.) 
  was 
  established 
  between 
  the 
  years 
  of 
  1914-16 
  and 
  

   by 
  1919 
  had 
  so 
  thoroughly 
  controlled 
  this 
  pest 
  that 
  from 
  an 
  area 
  where 
  in 
  

   1917, 
  3,500 
  Anomala 
  grubs 
  were 
  collected 
  in 
  1919 
  only 
  four 
  grubs 
  were 
  found 
  

   by 
  most 
  diligent 
  searching. 
  The 
  parasite 
  has 
  extended 
  its 
  range 
  beyond 
  the 
  

   area 
  infested 
  by 
  the 
  Anomala 
  and 
  is 
  now 
  infesting 
  the 
  Japanese 
  beetle 
  of 
  

   Hawaii. 
  That 
  the 
  Anomala 
  is 
  established 
  in 
  Connecticut 
  seems 
  evident 
  as 
  

   specimens 
  have 
  been 
  collected 
  in 
  the 
  same 
  nursery 
  two 
  successive 
  years. 
  

  

  Dr. 
  Baker 
  discussed 
  a 
  species 
  of 
  aphid 
  in 
  Baltic 
  Amber. 
  

  

  Dr. 
  Aldrich 
  made 
  some 
  remarks 
  on 
  Lucilia 
  species. 
  He 
  reported 
  Onesia 
  

   agilis 
  Meigen, 
  a 
  European 
  genus 
  new 
  to 
  the 
  country. 
  It 
  is 
  a 
  scavenger 
  and 
  

   has 
  been 
  reared 
  several 
  times 
  by 
  Mr. 
  Theodore 
  H. 
  Frison 
  at 
  the 
  Japanese 
  

   Beetle 
  Laboratory. 
  

  

  Mr. 
  RoHWER 
  exhibited 
  the 
  nest 
  of 
  Pseudomasaris 
  vespoides 
  (Cresson) 
  

   which 
  had 
  recently 
  been 
  received 
  from 
  Mr. 
  L. 
  H. 
  Weld. 
  The 
  nest 
  was 
  

   composed 
  of 
  five 
  cells, 
  four 
  of 
  which 
  produced 
  the 
  vespid 
  and 
  one 
  a 
  chrysidid 
  

   parasite 
  belonging 
  to 
  the 
  section 
  Gonockrysis. 
  The 
  nest 
  of 
  this 
  wasp 
  was 
  

   first 
  observed 
  by 
  Davidson 
  and 
  more 
  recently 
  by 
  Professor 
  CockerELL. 
  

   This 
  is 
  the 
  first 
  complete 
  nest 
  in 
  the 
  National 
  collection 
  of 
  this 
  kind. 
  

  

  Mr. 
  RoHWER 
  exhibited 
  the 
  resin 
  and 
  pebble 
  nest 
  of 
  one 
  of 
  the 
  bees 
  belong- 
  

   ing 
  to 
  the 
  genus 
  Dianthidmm. 
  This 
  nest 
  was 
  attached 
  to 
  an 
  oak 
  twig 
  and 
  

   was 
  recently 
  collected 
  by 
  Mr. 
  L. 
  H. 
  Weld 
  in 
  California. 
  It 
  resembles 
  closely 
  

   the 
  nest 
  of 
  D. 
  arizonicum 
  Rohwer, 
  recently 
  illustrated 
  by 
  Mr. 
  MiddlETon, 
  

   but 
  was 
  so 
  heavily 
  parasitized 
  by 
  a 
  chalcid 
  of 
  the 
  genus 
  Monodontomerus 
  

   that 
  none 
  of 
  the 
  bees 
  had 
  emerged. 
  

  

  Mr. 
  BuscK 
  read 
  the 
  following 
  paragraph 
  from 
  the 
  report 
  of 
  the 
  Swedish 
  

   botanist 
  Pehr 
  Kalm, 
  a 
  student 
  of 
  Linnaeus, 
  who 
  made 
  what 
  was 
  probably 
  

   one 
  of 
  the 
  first 
  scientific 
  expeditions 
  to 
  North 
  America, 
  in 
  the 
  middle 
  of 
  the 
  

   eighteenth 
  century. 
  

  

  "I 
  came 
  unconsciously 
  near 
  bringing 
  a 
  great 
  misfortune 
  upon 
  Europe. 
  

   At 
  my 
  departure 
  from 
  America 
  I 
  brought 
  with 
  me 
  a 
  small 
  package 
  of 
  sweet 
  

   peas 
  that 
  looked 
  very 
  good 
  and 
  sound. 
  On 
  August 
  1, 
  1751, 
  some 
  time 
  

   after 
  I 
  had 
  arrived 
  in 
  Stockholm, 
  I 
  opened 
  the 
  package 
  and 
  found 
  all 
  the 
  

   peas 
  worm-eaten. 
  From 
  the 
  hole 
  in 
  each 
  pea 
  an 
  insect 
  was 
  peeking 
  out, 
  

   and 
  some 
  crawled 
  into 
  the 
  open 
  intending 
  to 
  try 
  the 
  new 
  climate. 
  I 
  was 
  

   glad 
  to 
  close 
  the 
  package 
  again 
  instantaneously 
  and 
  thus 
  prevent 
  the 
  escape 
  

   of 
  these 
  destructive 
  creatures; 
  and 
  I 
  must 
  confess 
  that 
  when 
  I 
  first 
  opened 
  

   the 
  package 
  and 
  saw 
  those 
  insects 
  I 
  was 
  more 
  frightened 
  than 
  if 
  I 
  had 
  found 
  

   a 
  poisonous 
  snake 
  in 
  it, 
  for 
  I 
  knew 
  what 
  damage 
  might 
  have 
  been 
  wrought 
  

   in 
  my 
  fatherland 
  if 
  but 
  two 
  or 
  three 
  of 
  them 
  had 
  escaped. 
  Many 
  coming 
  

   generations 
  in 
  many 
  places 
  would 
  then 
  have 
  had 
  reason 
  to 
  pass 
  condemnation 
  

   on 
  me 
  for 
  causing 
  so 
  much 
  misfortune." 
  

  

  Mr. 
  Rohwer 
  in 
  discussing 
  Mr. 
  Busck's 
  remark 
  pointed 
  out 
  that 
  with 
  all 
  

   the 
  precaution 
  of 
  the 
  early 
  naturalists 
  they 
  had 
  not 
  been 
  successful 
  in 
  keeping 
  

   American 
  insects 
  out 
  of 
  Europe 
  and 
  gave 
  as 
  an 
  example 
  the 
  Douglas 
  fir 
  seed 
  

   chalcid 
  Megastigmus 
  spermotrophus 
  Wachtl, 
  a 
  species 
  which 
  was 
  first 
  described 
  

   from 
  the 
  material 
  secured 
  in 
  Denmark 
  from 
  American 
  seeds. 
  This 
  seed 
  

   chalcid 
  is 
  a 
  much 
  greater 
  pest 
  in 
  Europe 
  than 
  it 
  is 
  in 
  America. 
  

  

  Mr. 
  Gahan 
  gave 
  the 
  following 
  note 
  on 
  the 
  distribution 
  of 
  the 
  clover 
  chalcid, 
  

   Bruchophagus 
  funebris 
  (How.): 
  America, 
  in 
  clover, 
  alfalfa 
  and 
  astragalus; 
  

  

  