﻿/ 
  

  

  [8] 
  REPORT 
  UNITED 
  STATES 
  ENTOMOLOGICAL 
  COMMISSION. 
  

  

  short 
  and 
  little 
  noticed 
  pilosities 
  on 
  vertex, 
  back 
  of 
  thorax 
  and 
  abdomen 
  

   black. 
  Antennae 
  about 
  one-half 
  line 
  long, 
  black 
  ; 
  they 
  consist, 
  beside 
  

   their 
  two 
  basal 
  joints, 
  also 
  of 
  16 
  oviform 
  flagellar 
  joints, 
  apparently 
  

   placed 
  close 
  together, 
  beset 
  with 
  short 
  black 
  hairs. 
  The 
  palpi 
  are 
  

   blackish 
  -brown, 
  comparatively 
  long, 
  each 
  successive 
  joint 
  becoming 
  

   considerably 
  longer 
  than 
  the 
  one 
  just 
  preceding. 
  Legs 
  and 
  halteres 
  

   brown-black; 
  wings 
  grayish-turbid, 
  with 
  short 
  hairs 
  on 
  their 
  surface 
  and 
  

   with 
  long, 
  black, 
  easily-rubbed 
  hairs 
  along 
  their 
  margins 
  ; 
  they 
  only 
  

   have 
  three 
  longitudinal 
  veins 
  and 
  no 
  transverse 
  vein 
  ; 
  the 
  firstlongi- 
  

   tudinal 
  vein 
  is 
  very 
  close 
  to 
  the 
  anterior 
  margin, 
  running 
  just 
  to 
  its 
  

   middle 
  ; 
  the 
  second 
  longitudinal 
  vein 
  is 
  considerably 
  far 
  from 
  the 
  an- 
  

   terior 
  margin 
  and 
  runs 
  from 
  the 
  wing-root 
  straight 
  to 
  the 
  end 
  of 
  the 
  

   wing, 
  reaching 
  the 
  same 
  shortly 
  before 
  its 
  extreme 
  terminus 
  ; 
  the 
  third 
  

   longitudinal 
  vein 
  is 
  directed 
  diagonally 
  toward 
  the 
  posterior 
  margin, 
  

   suddenly 
  bending 
  toward 
  the 
  latter 
  with 
  its 
  rather 
  indistinct 
  end, 
  so 
  

   that 
  it 
  reaches 
  the 
  posterior 
  margin 
  just 
  opposite 
  the 
  mouth 
  of 
  the 
  first 
  

   longitudinal 
  vein 
  ; 
  we 
  also 
  observe 
  that 
  this 
  third 
  longitudinal 
  vein 
  

   has 
  also 
  a 
  straighter 
  but 
  inconspicuous 
  anterior 
  branch, 
  arising 
  from 
  

   that 
  spot 
  where 
  it 
  begins 
  to 
  bend 
  toward 
  the 
  posterior 
  margin, 
  and 
  

   which 
  branch 
  reaches 
  the 
  wing 
  margin 
  just 
  in 
  the 
  middle 
  between 
  the 
  

   mouth 
  of 
  the 
  second 
  and 
  third 
  longitudinal 
  veins. 
  

  

  B. 
  

  

  OBSEEYATIONS 
  ON 
  THE 
  NEW 
  OEOP 
  GALL-GNAT, 
  BY 
  DE. 
  

   BALTHASAE 
  WAGNEE. 
  EULDA, 
  1861; 
  WITH 
  PLATE, 
  4°, 
  

  

  PP. 
  41.* 
  

  

  Literature, 
  

  

  Asa 
  Fitch. 
  The 
  Hessian 
  Fly. 
  Albany, 
  1846. 
  

  

  H. 
  LoEW. 
  Die 
  Gallmiicken. 
  Program 
  of 
  the 
  Gymnasium 
  at 
  Posen. 
  1850. 
  

  

  H. 
  LoEW. 
  Die 
  neue 
  Kornmade. 
  Ziillichau, 
  1859. 
  

  

  J. 
  WiNNERTZ. 
  Beitraege 
  zu 
  einer 
  Monographie 
  der 
  Gallmiicken. 
  Linnsea 
  entomo- 
  

  

  logica. 
  Vol. 
  viii. 
  Berlin, 
  1853. 
  

   Von 
  Hohenhausen. 
  Biograpbie 
  des 
  Generals 
  von 
  Ochs. 
  Cassell, 
  1827. 
  

   F. 
  Pfister. 
  Die 
  Fahrt 
  der 
  hessischen 
  Heeresabtheilung 
  von 
  Portsmoutli 
  nach 
  N/ 
  

  

  York. 
  Zeitschrift 
  des 
  Yereins 
  fiir 
  hessische 
  Geschichte 
  und 
  Landeskunde. 
  Vol. 
  ii. 
  

  

  Cassell, 
  1840. 
  

  

  § 
  1. 
  Preliminary 
  considerations 
  on 
  the 
  ^^scheinpuppe" 
  (sub- 
  

   ' 
  imago 
  stage) 
  and 
  the 
  imago. 
  

  

  I 
  first 
  observed 
  the 
  maggot 
  of 
  the 
  new 
  gall-gnat 
  in 
  the 
  neighborhood 
  

   of 
  my 
  dwelling 
  in 
  the 
  spring 
  of 
  1860. 
  IS'ot 
  until 
  I 
  perused, 
  in 
  July, 
  Dr. 
  

   H. 
  Loew's 
  paper 
  (1859) 
  did 
  my 
  interest 
  become 
  more 
  excited 
  in 
  the 
  

   matter. 
  I 
  endeavored 
  to 
  secure 
  specimens 
  of 
  the 
  sub-imago 
  stage. 
  

   First 
  noticed 
  on 
  wheat 
  only, 
  I 
  soon 
  found 
  that 
  they 
  also 
  occurred 
  on 
  

   barley 
  and 
  rye. 
  The 
  insect 
  occurred 
  quite 
  rarely 
  on 
  the 
  latter 
  ; 
  but 
  on 
  

   the 
  occasion 
  of 
  an 
  excursion 
  to 
  the 
  Rhon 
  districts 
  I 
  found 
  them 
  as 
  

   often 
  on 
  rye 
  as 
  on 
  wheat. 
  Both 
  summer 
  rye 
  and 
  summer 
  wheat 
  were 
  

   attacked. 
  A 
  close 
  examination 
  of 
  the 
  pupse, 
  as 
  well 
  as 
  a 
  comparison 
  

   amongst 
  themselves, 
  showed 
  no 
  specific 
  difference. 
  They 
  occurred, 
  as 
  

   is 
  now 
  generally 
  known, 
  most 
  frequently 
  just 
  above 
  the 
  two 
  lowest 
  

   stalk-knots, 
  immediately 
  below 
  the 
  ruptured 
  spot, 
  and 
  here 
  mostly 
  on 
  

   the 
  outer 
  side; 
  less 
  so 
  on 
  the 
  upper 
  part 
  of 
  the 
  knot 
  itself. 
  The 
  num- 
  

   ber 
  of 
  pupae 
  occurring 
  on 
  a 
  stalk 
  varied 
  much; 
  sometimes 
  I 
  found 
  but 
  

   one, 
  at 
  other 
  times 
  seven 
  to 
  nine 
  specimens. 
  

  

  The 
  preserving 
  of 
  the 
  pupae 
  took 
  place 
  in 
  the 
  open 
  air 
  beneath 
  covers 
  

  

  * 
  Translated 
  by 
  Dr. 
  C. 
  F. 
  Gissler. 
  

  

  