﻿228 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  specimens 
  hardly 
  discernible 
  ; 
  pleura 
  yellow; 
  wings 
  hyaline, 
  iridescent, 
  

   anterior 
  veins 
  fuscous, 
  the 
  lighter 
  veins 
  brown; 
  knob 
  of 
  halteres 
  fuscous 
  

   with 
  yellowish 
  tip, 
  pedicel 
  yellowish; 
  tip 
  of 
  trochanter 
  black; 
  

   coxa 
  and 
  femur 
  dull 
  yellow; 
  tibia 
  darker; 
  tarsi 
  fuscous 
  apically; 
  

   abdomen 
  fuscous 
  except 
  the 
  yellow 
  terminal 
  segment 
  bearing 
  the 
  large 
  

   ochreous 
  claspers 
  which 
  are 
  tipped 
  with 
  fuscous. 
  

  

  Antennae 
  barely 
  as 
  long 
  as 
  head 
  and 
  thorax; 
  first 
  segment 
  cuboidal, 
  

   second 
  globose, 
  third 
  about 
  one-fourth 
  longer 
  than 
  the 
  following; 
  fourth 
  

   to 
  terminal 
  one 
  are 
  nearly 
  cylindrical, 
  the 
  proximal 
  ones 
  slightly 
  gibbous 
  

   and 
  not 
  twice 
  as 
  long 
  as 
  thick, 
  length 
  of 
  distal 
  ones 
  about 
  twice 
  their 
  

   thickness. 
  Palpi 
  ; 
  the 
  small 
  basal 
  segment 
  was 
  not 
  seen 
  ; 
  the 
  second 
  is 
  

   flattened, 
  narrow 
  at 
  its 
  base 
  and 
  is 
  broadly 
  oval 
  distally, 
  nearly 
  equal 
  

   to 
  subsequent 
  segments 
  in 
  length; 
  third 
  suboval, 
  nearly 
  equal 
  to 
  

   last; 
  terminal 
  segment 
  rectangular 
  in 
  outline, 
  about 
  one-fourth 
  longer 
  

   than 
  wide 
  ; 
  each 
  with 
  a 
  few 
  scattering 
  large 
  setee 
  and 
  numerous 
  minute 
  

   ones, 
  which 
  on 
  the 
  last 
  segments 
  have 
  somewhat 
  of 
  a 
  verticillate 
  

   arrangement. 
  

  

  Dorsum 
  of 
  thorax 
  invested 
  with 
  a 
  number 
  of 
  large 
  scattering 
  hairs. 
  

   Wings; 
  subcosta 
  (ist 
  longitudinal) 
  indistinct, 
  short; 
  first 
  branch 
  of 
  

   radius 
  (2nd 
  longitudinal) 
  joined 
  before 
  its 
  middle 
  by 
  the 
  short 
  cross-vein 
  

   to 
  the 
  second 
  branch 
  (3rd 
  longitudinal), 
  and 
  uniting 
  with 
  costa 
  be- 
  

   yond 
  the 
  middle 
  of 
  the 
  wing 
  and 
  about 
  on 
  a 
  level 
  with 
  the 
  fork 
  of 
  

   media 
  (4th 
  & 
  5th 
  longitudinals); 
  tip 
  of 
  second 
  branch 
  of 
  radius 
  and 
  

   media 
  about 
  equidistant 
  from 
  the 
  apex 
  of 
  the 
  wing; 
  the 
  second 
  branch 
  

   of 
  media 
  (5th 
  longitudinal) 
  and 
  the 
  two 
  branches 
  of 
  cubitus 
  (6th 
  & 
  7th 
  

   longitudinals) 
  about 
  equidistant 
  on 
  the 
  border 
  of 
  the 
  wing. 
  Anal 
  vein 
  

   (8th 
  longitudinal) 
  about 
  one-third 
  the 
  length 
  of 
  the 
  second 
  branch 
  of 
  

   cubitus 
  (PI. 
  VI, 
  fig. 
  7). 
  Fore 
  coxa 
  about 
  three-fourths 
  the 
  length 
  of 
  either 
  

   femur 
  or 
  tibia 
  ; 
  ta.rsi 
  longer, 
  first 
  segment 
  not 
  so 
  long 
  as 
  the 
  remaining 
  

   ones; 
  middle 
  legs 
  about 
  the 
  same; 
  posterior 
  tibia 
  about 
  one-fifth 
  longer 
  

   than 
  the 
  slightly 
  elongated 
  femur, 
  first 
  segment 
  of 
  tarsi 
  equal 
  to 
  the 
  

   remaining 
  ones. 
  

  

  Abdomen 
  with 
  numerous 
  stout 
  setse. 
  The 
  enlarged 
  terminal 
  segment 
  

   more 
  thickly 
  clothed 
  with 
  setae 
  and 
  bearing 
  large, 
  subtriangular 
  claspers 
  

   (PI. 
  VI, 
  fig. 
  13): 
  

  

  Length 
  of 
  body 
  4 
  mm,, 
  of 
  wing 
  2.75 
  mm. 
  Female 
  unknown. 
  

  

  Phora 
  albidihalteris 
  n. 
  sp.* 
  

  

  A 
  Mushroom 
  Phora. 
  

  

  (Ord. 
  DiPTERA 
  : 
  Fam. 
  PnoRiDiE.) 
  

  

  This 
  insect 
  was 
  reared 
  in 
  numbers 
  by 
  Dr; 
  J. 
  B. 
  Smith, 
  from 
  mushrooms. 
  

   It 
  is 
  believed 
  to 
  be 
  another 
  form 
  new 
  to 
  science 
  and 
  is 
  herewith 
  described. 
  

  

  Phora 
  albidihalteris. 
  — 
  Head 
  and 
  thorax 
  jet 
  black; 
  palpi 
  orange 
  

   yellow 
  ; 
  abdomen 
  black 
  in 
  some 
  specimens, 
  in 
  others 
  the 
  lateral 
  margins 
  

   and 
  dorsum 
  of 
  terminal 
  segments 
  are 
  dull 
  yellow; 
  wings 
  hyaline, 
  irides- 
  

   cent, 
  heavy 
  veins 
  ochreous; 
  capitulum 
  of 
  halteres 
  yellowish 
  white; 
  legs 
  

   a 
  variable 
  ochreous 
  with 
  the 
  terminal 
  segments 
  darker. 
  

  

  *By 
  E. 
  p. 
  Felt, 
  D. 
  Sc 
  

  

  