﻿HEVISIOX 
  OF 
  THE 
  MELAXOFLI—SCrDDEE. 
  359 
  

  

  the 
  inner 
  face 
  twice 
  barred 
  with 
  black, 
  which 
  sometimes 
  shows 
  feebly- 
  

   above, 
  and 
  appears 
  again 
  on 
  the 
  outer 
  face, 
  but 
  diffused, 
  subconfluent, 
  

   and 
  crossed 
  by 
  the 
  pallid 
  ang-ulate 
  incisures; 
  inferior 
  face 
  red: 
  genicu- 
  

   lar 
  arc 
  black 
  on 
  both 
  sides; 
  hind 
  tibiae 
  red, 
  with 
  a 
  subbasal, 
  narrow, 
  

   fuscous 
  annulus, 
  the 
  spines 
  black 
  to 
  their 
  base, 
  twelve 
  in 
  number 
  in 
  the 
  

   outer 
  series. 
  Extremity 
  of 
  the 
  male 
  abdomen 
  roundly 
  clavate 
  and 
  

   upturned, 
  the 
  supraanal 
  plate 
  triangular 
  and 
  tolerably 
  liat, 
  but 
  with 
  a 
  

   deep 
  basal 
  luedian 
  sulcus 
  reaching 
  more 
  than 
  half 
  way 
  to 
  the 
  tip 
  with 
  

   pretty 
  high 
  and 
  sharp 
  bounding 
  ridges, 
  fading 
  apically 
  ; 
  furcula 
  wholly 
  

   wanting; 
  cerci 
  stout, 
  heavy, 
  and 
  incurved, 
  narrowing 
  considerably 
  

   toward 
  the 
  middle, 
  then 
  very 
  ra[)idly 
  expanding 
  and 
  furcate, 
  the 
  upper 
  

   lobe 
  longer 
  than 
  the 
  lower 
  and 
  more 
  equal, 
  well 
  rounded 
  apically, 
  

   directed 
  sharply 
  upward, 
  the 
  lower 
  triangular, 
  bluntly 
  pointed, 
  and 
  

   turned 
  but 
  little 
  downward, 
  the 
  apical 
  margin 
  of 
  the 
  whole 
  deeply 
  and 
  

   angularly 
  excised, 
  scarcely 
  surpassing 
  the 
  supraanal 
  plate; 
  infracercal 
  

   plates 
  just 
  longer 
  than 
  the 
  supraanal 
  plate; 
  subgenital 
  plate 
  moder- 
  

   ately 
  narrow, 
  the 
  apex 
  a 
  little 
  and 
  angularly 
  elevated, 
  scarcely 
  pro- 
  

   longed, 
  entire. 
  

  

  Length 
  of 
  body, 
  male, 
  31.5 
  mm., 
  female, 
  39 
  mm.; 
  antennae, 
  male, 
  16 
  

   mm., 
  female, 
  17.5 
  mm.; 
  tegmina, 
  male, 
  19.5 
  mm., 
  female, 
  23 
  mm.; 
  hind 
  

   femora, 
  male, 
  18.5 
  mm., 
  female, 
  22.5 
  mm. 
  

  

  One 
  male, 
  1 
  female. 
  Jacksonville, 
  Duval 
  ( 
  'ounty, 
  Florida, 
  Pridday, 
  

   (L. 
  Bruner). 
  

  

  27. 
  BIYITTATUS 
  SEEIES. 
  

  

  This 
  group 
  is 
  nearly 
  related 
  to 
  the 
  robustus 
  series; 
  the 
  male 
  prozona 
  

   is 
  more 
  or 
  less 
  distinctly 
  longitudinal, 
  and 
  the 
  interspace 
  between 
  the 
  

   mesosternal 
  lobes 
  of 
  the 
  same 
  sex 
  nearly 
  or 
  more 
  than 
  twice 
  as 
  long 
  as 
  

   broad; 
  the 
  eyes 
  are 
  rather 
  widely 
  separated, 
  and 
  the 
  frontal 
  costa 
  

   broad 
  and 
  equal. 
  The 
  prosternal 
  spine 
  is 
  rather 
  long 
  and 
  generally 
  

   slightly 
  retrorse. 
  The 
  tegmina 
  are 
  fully 
  developed, 
  at 
  least 
  as 
  long 
  as 
  

   the 
  hind 
  femora, 
  without 
  spots 
  or, 
  rarely, 
  very 
  feebly 
  marmorate, 
  but 
  

   sometimes 
  with 
  a 
  light 
  stripe 
  dividing 
  the 
  dorsal 
  and 
  lateral 
  faces 
  and 
  

   extending 
  across 
  the 
  pronotum. 
  The 
  hind 
  femora 
  are 
  longitudinally 
  

   striped 
  on 
  the 
  outer 
  ftic^e 
  or 
  unmarked, 
  the 
  hind 
  tibiae 
  usually 
  red, 
  

   rarely 
  purplish, 
  with 
  ten 
  to 
  thirteen 
  spines 
  in 
  the 
  outer 
  series. 
  

  

  The 
  sui^raanal 
  plate 
  is 
  much 
  as 
  in 
  the 
  robustus 
  series; 
  the 
  furcula 
  is 
  

   present 
  as 
  small 
  but 
  coarse 
  lobes, 
  and 
  the 
  cerci 
  are 
  much 
  as 
  in 
  the 
  

   robustus 
  series, 
  but 
  less 
  extravagantly 
  developed; 
  the 
  subgenital 
  plate 
  

   is 
  longer 
  than 
  broad, 
  generally 
  moderately 
  narrow, 
  somewhat 
  elevated 
  

   and 
  sometimes 
  thickened 
  apically, 
  hardly 
  prolonged, 
  and 
  always 
  entire. 
  

  

  It 
  comprises 
  insects 
  of 
  a 
  large 
  or 
  a 
  very 
  large 
  size, 
  w'lth 
  heavy 
  bodies 
  

   and 
  poor 
  in 
  flight. 
  Five 
  species 
  are 
  known, 
  and 
  among 
  them 
  they 
  cover 
  

   our 
  entire 
  territory, 
  from 
  Atlantic 
  to 
  Pacific 
  and 
  from 
  Central 
  Mexico 
  

   to 
  the 
  Saskatchewan 
  and 
  Hudson 
  Bay. 
  It 
  comprises 
  two 
  of 
  our 
  com- 
  

   monest 
  species. 
  

  

  