﻿NEUROPTERA. 
  337 
  

  

  Raphidia, 
  (PI. 
  LIY, 
  fig. 
  12.) 
  Praescutum 
  present, 
  but 
  obscurely 
  

   marked, 
  being 
  almost 
  obsolete, 
  but 
  the 
  outline 
  is 
  seen 
  to 
  be 
  triangular. 
  

   The 
  scutum 
  is 
  large, 
  only 
  half 
  divided 
  by 
  the 
  scutellum, 
  which 
  is 
  much 
  

   shorter 
  than 
  broad, 
  but 
  triangular 
  in 
  form. 
  Postscutellum 
  forms 
  a 
  nar- 
  

   row, 
  transverse 
  band, 
  which 
  is 
  shorter 
  than 
  in 
  the 
  mesonotum. 
  

  

  Pleurum. 
  

  

  Corydalus. 
  In 
  the 
  propleuriim 
  (PI. 
  LXIY, 
  fig. 
  1) 
  the 
  episternum 
  and 
  

   epimerum 
  are 
  minute, 
  rudimentary, 
  and 
  not 
  well 
  defined^ 
  owing 
  to 
  the 
  

   great 
  size 
  of 
  the 
  sternite 
  no 
  trochantine 
  is 
  visible. 
  The 
  coxa 
  is 
  large 
  

   and 
  thick, 
  about 
  twice 
  as 
  large 
  as 
  the 
  succeeding 
  coxse. 
  

  

  Baphidia. 
  (PI. 
  LIY, 
  fig. 
  13). 
  Much 
  as 
  in 
  Corydalus; 
  the 
  episternum 
  

   and 
  epimerum 
  are 
  minute 
  and 
  rudimentary, 
  the 
  relative 
  form 
  of 
  these 
  

   sclerites 
  not 
  being 
  easily 
  made 
  out. 
  The 
  coxae, 
  however, 
  are 
  long 
  and 
  

   thick, 
  and 
  much 
  larger 
  than 
  those 
  of 
  the 
  meso- 
  and 
  metathorax. 
  

  

  In 
  Corydalus 
  (Fig. 
  2) 
  the 
  meso-flanks 
  are 
  rather 
  short 
  and 
  thick 
  ; 
  the 
  

   supra- 
  sternite 
  square. 
  The 
  episternum 
  is 
  a 
  little 
  longer 
  than 
  broad; 
  

   the 
  suture 
  between 
  it 
  and 
  the 
  sternite 
  is 
  obsolete. 
  The 
  epimerum 
  is 
  

   moderately 
  long, 
  widening 
  considerably 
  towards 
  the 
  insertion 
  of 
  the 
  

   wings. 
  The 
  coxa 
  is 
  very 
  short 
  and 
  thick. 
  The 
  trochantine 
  is 
  very 
  

   small 
  ; 
  one-half 
  *as 
  large 
  as 
  the 
  coxa. 
  

  

  Baphidia. 
  (PI. 
  LIY, 
  fig. 
  14.) 
  The 
  mesopleurites 
  are 
  just 
  as 
  in 
  Cory- 
  

   dalus, 
  but 
  longer 
  and 
  slenderer, 
  and 
  the 
  suture 
  of 
  the 
  sternum 
  is 
  well 
  

   marked. 
  The 
  epimerum 
  is 
  longer 
  and 
  narrower 
  above 
  than 
  in 
  Cory- 
  

   dalus, 
  and 
  the 
  trochantine 
  is 
  small; 
  coxa 
  moderately 
  large. 
  

  

  Metapleurum 
  (Corydalus). 
  (Fig. 
  12.) 
  The 
  flanks 
  of 
  the 
  metathorax 
  

   are 
  longer, 
  i. 
  e., 
  thicker, 
  than 
  in 
  the 
  mesothorax; 
  being 
  also 
  shorter 
  

   vertically. 
  The 
  episternites 
  are 
  shorter 
  vertically, 
  but 
  thicker, 
  and 
  the 
  

   coxae 
  are 
  shorter 
  and 
  thicker. 
  The 
  epimerum 
  is 
  undivided, 
  not 
  so 
  wide 
  

   above 
  (next 
  to 
  the 
  insertion 
  of 
  the 
  wings) 
  as 
  in 
  the 
  mesothorax. 
  The 
  

   trochantine 
  is 
  a 
  little 
  smaller 
  than 
  in 
  the 
  mesothorax. 
  

  

  Baphidia. 
  (PI. 
  LIY, 
  fig. 
  15.) 
  As 
  in 
  Corydalus, 
  the 
  metapleurites 
  are 
  

   decidedly 
  thicker 
  and 
  longer 
  than 
  the 
  pleurites 
  of 
  the 
  mesothorax. 
  The 
  

   episterna 
  are 
  both 
  larger 
  and 
  thicker 
  than 
  in 
  the 
  mesothorax. 
  The 
  epi- 
  

   merum 
  is 
  not 
  divided, 
  narrower 
  below, 
  and 
  wider 
  towards 
  the 
  insertion 
  

   of 
  the 
  wing 
  than 
  in 
  the 
  mesothorax. 
  The 
  coxa 
  is 
  nearly 
  twice 
  as 
  large 
  

   as 
  in 
  the 
  mesothorax. 
  

  

  Sternum. 
  

  

  Corydalus. 
  The 
  prosternum 
  (Fig. 
  4) 
  is 
  remarkably 
  large, 
  square, 
  with 
  

   an 
  anterior, 
  short, 
  separate 
  i)iece, 
  or 
  praesternite. 
  

  

  The 
  mesosternum 
  (Fig. 
  5) 
  is 
  large 
  and 
  very 
  broad, 
  transversely 
  sub- 
  

   oblong, 
  the 
  suture 
  between 
  it 
  and 
  the 
  infra- 
  sternite 
  only 
  partial. 
  

  

  The 
  metasternum 
  is 
  as 
  in 
  the 
  mesothorax, 
  but 
  a 
  little 
  larger 
  (Fig. 
  6). 
  

  

  Baphidia. 
  The 
  prosternum 
  (PI. 
  LIY, 
  fig. 
  16) 
  is 
  very 
  large, 
  long, 
  and 
  

   narrow 
  oblong 
  antero-posteriorly. 
  and 
  is 
  covered 
  by 
  the 
  bent-dowu 
  

   22 
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