﻿214 
  JOURNAL 
  OF 
  THE 
  WASHINGTON 
  ACADEMY 
  OF 
  SCIENCES 
  VOL. 
  12, 
  NO. 
  8 
  

  

  Maryland, 
  and 
  Federal 
  Inspectors 
  in 
  New 
  York 
  City, 
  Philadelphia, 
  and 
  Wash- 
  

   ington, 
  D. 
  C. 
  

  

  He 
  also 
  stated 
  that 
  these 
  French 
  shipments 
  were 
  found 
  to 
  carry 
  a 
  number 
  

   of 
  nests 
  of 
  the 
  so-called 
  White 
  Tree 
  Pierid, 
  Aporia 
  crataegi 
  L. 
  

  

  Mr. 
  A. 
  B. 
  Gahan 
  stated 
  that 
  owing 
  to 
  misdeterminations 
  the 
  insects 
  

   hiterto 
  known 
  as 
  Thyreodon 
  morio 
  (Fab.) 
  and 
  Exochilum 
  mundum 
  (Say) 
  will 
  

   have 
  to 
  be 
  called 
  Thyreodon 
  atricolor 
  (Oliver) 
  and 
  Therion 
  morio 
  (Fab.), 
  

   respectively. 
  

  

  Dr. 
  A. 
  G. 
  Boving 
  discussed 
  the 
  larval 
  structures 
  of 
  the 
  rice 
  water 
  weevil, 
  

   Lissorhoptrus 
  simplex. 
  In 
  some 
  respects, 
  especially 
  in 
  the 
  form 
  of 
  the 
  spira- 
  

   cles 
  which 
  are 
  forced 
  into 
  the 
  air 
  chamber 
  of 
  the 
  rice 
  stem, 
  this 
  larva 
  is 
  similar 
  to 
  

   that 
  of 
  Donacia. 
  In 
  most 
  resects, 
  however, 
  it 
  is 
  like 
  the 
  other 
  curculionids. 
  

  

  Mr. 
  J. 
  A. 
  Hyslop 
  called 
  attention 
  to 
  the 
  recent 
  death 
  of 
  Dr. 
  Charles 
  H. 
  

   Fernald, 
  for 
  many 
  years 
  head 
  of 
  the 
  department 
  of 
  entomology 
  at 
  the 
  

   Massachusetts 
  Agricultural 
  College. 
  

  

  339th 
  meeting 
  

  

  The 
  339th 
  regular 
  meeting 
  of 
  the 
  Society 
  was 
  held 
  on 
  April 
  7, 
  1921, 
  in 
  

   Room 
  43 
  of 
  the 
  new 
  building 
  of 
  the 
  National 
  Museum, 
  with 
  President 
  Wal- 
  

   ton 
  in 
  the 
  chair 
  and 
  23 
  members 
  and 
  5 
  visitors 
  present. 
  New 
  Members: 
  

   C. 
  D. 
  B. 
  Garrett, 
  Cranbrook, 
  British 
  Columbia; 
  Dr. 
  W. 
  R. 
  Thompson, 
  

   Villa 
  Pina 
  Flor, 
  Auch, 
  Gers, 
  France. 
  

  

  Corresponding 
  Secretary 
  Rohwer 
  announced 
  that 
  by 
  action 
  of 
  the 
  Exec- 
  

   utive 
  Committee 
  the 
  Society 
  is 
  furnishing 
  the 
  Proceedings 
  to 
  foreign 
  insti- 
  

   tutions 
  already 
  subscribing, 
  which 
  cannot 
  afford 
  to 
  subscribe 
  at 
  the 
  present 
  

   rate 
  of 
  exchange, 
  at 
  the 
  rate 
  of 
  exchange 
  of 
  1914. 
  Dr. 
  Walther 
  Horn 
  of 
  

   the 
  Berlin 
  Entomological 
  Museum 
  had 
  taken 
  advantage 
  of 
  this 
  offer 
  and 
  in 
  

   accepting 
  it 
  had 
  also 
  sent 
  as 
  a 
  gift 
  to 
  the 
  vSociety 
  a 
  set 
  of 
  photographs, 
  many 
  

   in 
  duplicate, 
  of 
  European 
  Entomologists. 
  These 
  were 
  exhibited 
  by 
  Mr. 
  

   RoHWER. 
  Such 
  of 
  these 
  as 
  are 
  not 
  already 
  in 
  the 
  voluminous 
  collection 
  of 
  

   Dr. 
  Howard 
  are 
  to 
  be 
  added 
  to 
  that 
  collection 
  and 
  the 
  others 
  oflfered 
  for 
  

   sale. 
  

  

  Program 
  

  

  August 
  Busck 
  and 
  Carl 
  Heinrich: 
  On 
  the 
  Male 
  Genitalia 
  of 
  the 
  Micro- 
  

   lepidoptera 
  and 
  their 
  systematic 
  Importance. 
  

  

  This 
  paper 
  showed 
  how 
  the 
  different 
  forms 
  assumed 
  by 
  the 
  various 
  elements 
  

   of 
  the 
  genitalia 
  furnish 
  the 
  best 
  characters 
  for 
  the 
  classification 
  and 
  recogni- 
  

   tion 
  of 
  insects 
  of 
  this 
  group. 
  It 
  was 
  illustrated 
  by 
  many 
  photographic 
  lan- 
  

   tern 
  slides 
  taken 
  from 
  the 
  slide 
  mounts 
  of 
  genitalia. 
  

  

  Mr. 
  Busck 
  also 
  spoke 
  of 
  the 
  finding 
  in 
  swarms 
  by 
  Mr. 
  Schwarz 
  at 
  Plum- 
  

   mer's 
  Island, 
  Maryland 
  of 
  the 
  hitherto 
  rare 
  moth, 
  Ethmia 
  macelhosiella 
  

   Busck, 
  and 
  the 
  subsequent 
  discovery 
  of 
  its 
  host 
  relations 
  and 
  life-history. 
  

   These 
  swarms 
  were 
  first 
  observed 
  by 
  Mr. 
  Schwarz 
  on 
  November 
  8, 
  1916, 
  

   and 
  in 
  the 
  following 
  spring 
  larvae 
  found 
  feeding 
  on 
  Phacelia 
  developed 
  into 
  

   adults 
  of 
  this 
  species. 
  The 
  larvae 
  reach 
  full 
  growth 
  early 
  in 
  May, 
  pupate 
  in 
  

   bark, 
  and 
  emerge 
  as 
  adult 
  moths 
  late 
  in 
  the 
  fall. 
  The 
  time 
  and 
  place 
  of 
  ovi- 
  

   position 
  is 
  not 
  known. 
  

  

  In 
  the 
  discussion 
  of 
  the 
  last 
  Mr. 
  E. 
  A. 
  Schwarz 
  spoke 
  of 
  the 
  somewhat 
  

  

  