﻿AUGUST 
  19, 
  1922 
  proceedings: 
  ENTOMOIvOGICAIv 
  SOCIETY 
  339 
  

  

  species 
  of 
  Xanihopimpla, 
  a 
  genus 
  distributed 
  through 
  the 
  Oriental, 
  Austral- 
  

   ian 
  and 
  Ethiopian 
  regions. 
  The 
  Baker 
  collections 
  were 
  made 
  largely 
  on 
  Luzon 
  

   and 
  Mindanao, 
  Borneo 
  and 
  Singapore 
  with 
  some 
  from 
  the 
  islands 
  of 
  Basilau 
  

   and 
  Penang; 
  while 
  from 
  other 
  sources 
  there 
  are 
  several 
  from 
  Formosa 
  and 
  

   a 
  few 
  from 
  China 
  and 
  Java. 
  There 
  are 
  already 
  slightly 
  in 
  excess 
  of 
  100 
  spe- 
  

   cies 
  described. 
  He 
  believed 
  that 
  as 
  careful 
  collecting 
  throughout 
  the 
  range 
  of 
  

   this 
  genus 
  would 
  at 
  least 
  treble 
  the 
  number 
  of 
  species. 
  

  

  Dr. 
  Howard, 
  in 
  closing 
  the 
  discussion, 
  ventured 
  the 
  opinion 
  that, 
  con- 
  

   sidering 
  the 
  character 
  of 
  the 
  men 
  who 
  had 
  spoken, 
  this 
  discussion 
  was 
  the 
  

   most 
  important 
  which 
  had 
  been 
  held 
  concerning 
  this 
  greatly 
  mooted 
  matter 
  of 
  

   the 
  number 
  of 
  species 
  of 
  insects. 
  He 
  believed 
  that 
  the 
  number 
  of 
  species 
  of 
  

   insects 
  in 
  the 
  world 
  must 
  probably 
  exceed 
  three 
  millions. 
  

  

  Mr. 
  BuscK 
  announced 
  that 
  the 
  name 
  of 
  the 
  spruce 
  bud 
  moth 
  had 
  been 
  

   changed. 
  This 
  new 
  name 
  will 
  be 
  published 
  in 
  a 
  forthcoming 
  paper 
  which 
  

   will 
  also 
  contain 
  a 
  key 
  to 
  the 
  species 
  based 
  on 
  genital 
  characters. 
  

  

  Mr. 
  BridwELL 
  reported 
  rearing 
  two 
  individuals 
  of 
  an 
  apparently 
  undescribed 
  

   species 
  of 
  the 
  Chalcidoid 
  genus 
  Perilampus 
  from 
  the 
  nests 
  of 
  the 
  genus 
  Cra- 
  

   hro, 
  one 
  of 
  them 
  from 
  Crabro 
  chrysarginus. 
  This 
  is 
  particularly 
  interesting 
  on 
  

   account 
  of 
  its 
  bearing 
  upon 
  the 
  biology 
  of 
  this 
  genus, 
  since 
  the 
  manner 
  of 
  their 
  

   oviposition 
  is 
  unknown. 
  They 
  are 
  known 
  to 
  have 
  a 
  migratory 
  Planidium 
  first 
  

   stage 
  larvae 
  and 
  have 
  been 
  generally 
  bred 
  as 
  parasites 
  of 
  hymenopterous 
  or 
  dip- 
  

   terous 
  parasites 
  of 
  lepidoptera. 
  This 
  is 
  apparently 
  the 
  first 
  American 
  record 
  

   of 
  a 
  species 
  as 
  parasites 
  on 
  aculeate 
  hymenoptera. 
  In 
  Europe 
  Gaulle 
  

   records 
  Peralampus 
  auratus 
  Panzer 
  as 
  bred 
  from 
  Solenius 
  rubicola 
  and 
  S. 
  

   vagus 
  by 
  Lichtenstein. 
  These 
  are 
  Crabronid 
  wasps 
  closely 
  related 
  to 
  Crabro 
  

   chrysargimis. 
  These 
  Crabronids 
  store 
  their 
  nests 
  with 
  diptera 
  (often 
  flower- 
  

   inhabiting) 
  and 
  they 
  themselves 
  frequent 
  the 
  flowers 
  as 
  do 
  the 
  insects 
  of 
  

   Perilampus. 
  The 
  utilization 
  of 
  Crabro 
  as 
  a 
  host 
  adds 
  probability 
  to 
  Harry 
  

   S. 
  Smith's 
  suggestions 
  that 
  Perilampus 
  may 
  oviposit 
  upon 
  flowers 
  and 
  the 
  

   planidium 
  be 
  carried 
  by 
  insects 
  to 
  their 
  food. 
  

  

  The 
  planidia 
  had 
  evidently 
  made 
  this 
  entrance 
  into 
  the 
  nests 
  of 
  the 
  Crabro 
  

   in 
  the 
  fall 
  or 
  summer, 
  but 
  their 
  development 
  was 
  retarded 
  until 
  the 
  host 
  ma- 
  

   terial 
  had 
  been 
  brought 
  into 
  the 
  laboratory. 
  The 
  larvae 
  were 
  first 
  apparent 
  

   as 
  external 
  parasites 
  upon 
  the 
  prepupal 
  larva 
  in 
  the 
  cocoon. 
  

  

  Mr. 
  Barber 
  exhibited 
  specimens 
  and 
  photos 
  of 
  males 
  of 
  Dynastes 
  display- 
  

   ing 
  intergradient 
  forms 
  between 
  the 
  giant 
  "hercules 
  beetles," 
  6V2 
  inches 
  long, 
  

   through 
  the 
  middle-sized 
  form 
  named 
  perseus 
  by 
  Olivier 
  (1789) 
  to 
  the 
  dwarf 
  

   form 
  two 
  inches 
  long, 
  known 
  under 
  the 
  name 
  alcides 
  Fabr. 
  (1787). 
  Mr. 
  

   ScHWARZ 
  has 
  previously 
  discussed 
  these 
  forms 
  and 
  published 
  a 
  plate 
  in 
  our 
  

   Proceedings 
  (Proc. 
  Ent. 
  Soc. 
  Wash. 
  10: 
  70). 
  Recently 
  the 
  speaker 
  examined 
  

   a 
  series 
  of 
  about 
  20 
  specimens 
  from 
  Merida, 
  Venezuela 
  (Solomon 
  Bricino 
  & 
  

   Sons) 
  which 
  supplies 
  an 
  almost 
  continuously 
  intergrading 
  series 
  between 
  the 
  

   two 
  extremes. 
  In 
  this 
  series 
  the 
  pair 
  of 
  lateral 
  tubercles 
  on 
  the 
  pronotal 
  horn 
  

   gradually 
  comes 
  closer 
  to 
  the 
  base 
  as 
  the 
  size 
  diminishes 
  until, 
  in 
  the 
  small- 
  

   est 
  specimens, 
  they 
  occupy 
  about 
  the 
  same 
  position 
  as 
  in 
  the 
  common 
  North 
  

   American 
  species 
  tityus. 
  A 
  photo 
  of 
  17 
  of 
  these 
  beetles 
  arranged 
  according 
  

   to 
  size 
  was 
  exhibited 
  with 
  a 
  sketch 
  map 
  illustrating 
  the 
  habitats 
  of 
  the 
  various 
  

   species 
  of 
  Dynastes 
  and 
  it 
  was 
  pointed 
  out 
  that 
  the 
  Mexican 
  species, 
  hylltts 
  

   Cher. 
  1843, 
  may 
  connect 
  with 
  our 
  rather 
  abundant 
  and 
  slightly 
  variable 
  

   tityus 
  Linn, 
  of 
  the 
  Southern 
  States, 
  and 
  also 
  through 
  the 
  plateau 
  of 
  Mexico, 
  

   with 
  the 
  rather 
  distinct 
  Arizona 
  species 
  known 
  as 
  granti 
  Horn. 
  

  

  