﻿74 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  »8 
  

  

  with 
  third 
  segment 
  longer, 
  its 
  length 
  approximately 
  equal 
  that 
  of 
  

   second 
  segment. 
  Similar 
  otherwise 
  to 
  male 
  in 
  color 
  and 
  maculation. 
  

  

  Alar 
  expanse, 
  15-30 
  mm. 
  

  

  Genitalia 
  (pi. 
  9, 
  fig. 
  17) 
  with 
  genital 
  opening 
  broad; 
  ductus 
  bursa 
  

   long, 
  slender, 
  with 
  a 
  narrow 
  sclerotized 
  collarlike 
  structure 
  slightly 
  

   anterior 
  to 
  origin 
  of 
  ductus 
  seminalis; 
  membranous 
  or 
  only 
  slightly 
  

   sclerotized 
  between 
  the 
  collar 
  and 
  genital 
  opening, 
  the 
  sclerotization, 
  

   if 
  present, 
  stronger 
  anteriorly; 
  bursa 
  copulatrix 
  simple, 
  expansion 
  

   from 
  junction 
  with 
  ductus 
  bursa 
  evident. 
  

  

  Larva. 
  — 
  Arrangement 
  of 
  body 
  setae 
  is 
  that 
  of 
  typical 
  pyraustid 
  

   (pi. 
  5, 
  fig. 
  6). 
  Prothorax 
  with 
  two 
  setae 
  on 
  the 
  prespiracular 
  shield; 
  

   group 
  VI 
  bisetose. 
  Meso- 
  and 
  metathorax 
  with 
  group 
  VI 
  unisetose. 
  

   Abdominal 
  segments 
  3-6 
  with 
  seta 
  IV 
  approximate 
  to 
  seta 
  V, 
  under 
  

   the 
  spiracle. 
  Ninth 
  abdominal 
  segment 
  with 
  paired 
  setae 
  II 
  on 
  same 
  

   pinaculum; 
  seta 
  I 
  approximate 
  to 
  seta 
  III 
  and 
  on 
  same 
  pinaculum; 
  

   setae 
  IV 
  and 
  V 
  absent, 
  only 
  seta 
  VI 
  of 
  this 
  group 
  present. 
  Crochets 
  

   on 
  abdominal 
  prolegs 
  irregular 
  or 
  triordinal 
  in 
  length 
  ; 
  often 
  arranged 
  

   in 
  a 
  complete 
  circle 
  but 
  usually 
  weaker 
  or 
  interrupted 
  outwardly 
  (at 
  

   least 
  on 
  some 
  of 
  the 
  prolegs) 
  . 
  

  

  Mature 
  larva 
  15-20 
  mm. 
  long, 
  robust, 
  and 
  conspicuously 
  tapered 
  

   posteriorly 
  (ninth 
  abdominal 
  and 
  anal 
  segments 
  greatly 
  reduced 
  in 
  

   size) 
  . 
  Body 
  color 
  white 
  or 
  pinkish. 
  Body 
  setae 
  without 
  conspicuous 
  

   sclerotized, 
  pigmented 
  pinacula 
  at 
  their 
  bases, 
  the 
  pinacula 
  usually 
  

   concolorous 
  with 
  adjacent 
  body 
  area 
  and 
  slightly 
  raised 
  (blisterlike), 
  

   particularly 
  on 
  meso- 
  and 
  metathorax, 
  Prothoracic 
  shield 
  pale 
  yellow, 
  

   markings 
  light 
  brown, 
  without 
  a 
  conspicuous 
  blackish 
  reniform 
  spot 
  

   posterior 
  to 
  seta 
  lb. 
  No 
  anal 
  fork. 
  Head 
  a 
  little 
  wider 
  than 
  high 
  ; 
  pale 
  

   yellow, 
  reticulation 
  indistinct 
  (pi. 
  5, 
  fig. 
  2) 
  ; 
  lateral 
  view 
  (pi. 
  5, 
  fig. 
  3), 
  

   slightly 
  rounded 
  and 
  not 
  appreciably 
  flattened 
  ; 
  with 
  a 
  short, 
  rather 
  

   broad 
  dark 
  fuscous 
  pigmentation 
  along 
  incision 
  from 
  hind 
  margin; 
  

   ocellus 
  II 
  much 
  closer 
  to 
  ocellus 
  I 
  than 
  to 
  ocellus 
  III 
  ; 
  a 
  dark 
  fuscous 
  

   pigmentation 
  along 
  ocellar 
  arc, 
  the 
  intensity 
  of 
  the 
  pigmentation 
  dis- 
  

   tinctly 
  weaker 
  in 
  area 
  between 
  ocelli 
  II 
  and 
  III; 
  seta 
  Oi 
  tangent 
  to 
  

   or 
  anterior 
  to 
  a 
  line 
  joining 
  centers 
  of 
  ocelli 
  II 
  and 
  III. 
  Mandible 
  with 
  

   lower 
  ventral 
  rib 
  of 
  oral 
  surface 
  smooth, 
  except 
  for 
  a 
  minute 
  toothlike 
  

   projection 
  from 
  near 
  base 
  of 
  lower 
  tooth. 
  

  

  This 
  combination 
  of 
  characters 
  will 
  serve 
  to 
  distinguish 
  the 
  larvae 
  

   of 
  elegantalis 
  from 
  all 
  other 
  American 
  larvae 
  known 
  to 
  me 
  that 
  are 
  

   associated 
  with 
  eggplant 
  or 
  tomato. 
  The 
  pale, 
  concolorous, 
  or 
  only 
  

   slightly 
  pigmented 
  body 
  pinacula 
  of 
  elegantalis 
  larvae 
  will 
  distinguish 
  

   them 
  from 
  those 
  of 
  orbonalis., 
  which 
  have 
  the 
  pinacula 
  rather 
  strongly 
  

   sclerotized 
  and 
  a 
  distinct 
  ocherous 
  or 
  brownish 
  pigmentation. 
  Larvae 
  

   of 
  elegantalis 
  also 
  have 
  seta 
  d 
  tangent 
  to 
  or 
  anterior 
  to 
  a 
  line 
  connect- 
  

   ing 
  centers 
  of 
  ocelli 
  II 
  and 
  III 
  while 
  those 
  of 
  orbonalis 
  have 
  seta 
  Oi 
  

   distinctly 
  posterior 
  to 
  such 
  line. 
  

  

  