﻿:4. 
  BEriSIOX 
  OF 
  THE 
  MELAXOFLI—SCrDDER. 
  137 
  

  

  /-. 
  Subgeuital 
  plate 
  of 
  male 
  Aery 
  narrow 
  aucl 
  narrower 
  apically 
  than 
  the 
  

   extreme 
  base 
  of 
  the 
  cerci 
  ; 
  snpraanal 
  plate 
  on 
  the 
  same 
  general 
  plane 
  

   througbont; 
  cerci 
  slender 
  and 
  much 
  narrowed 
  in 
  the 
  middle, 
  gradually 
  

   incurved, 
  exteriorly 
  tumid 
  at 
  apex 
  (24. 
  Plebejus 
  series). 
  

   //'. 
  Subgenital 
  plate 
  of 
  male, 
  as 
  seen 
  from 
  above, 
  apically 
  angnlate 
  and 
  

  

  tuberculate 
  109. 
  margiuatus 
  (p. 
  330). 
  

  

  g'^. 
  Subgenital 
  plate 
  of 
  male, 
  as 
  seen 
  from 
  above, 
  apically 
  well 
  rounded 
  

  

  and 
  simple 
  110. 
  parojyo\des 
  (p. 
  331). 
  

  

  fZ'. 
  Cerci 
  of 
  male 
  apically 
  bifurcate, 
  or 
  with 
  an 
  inferior 
  subniedian 
  process 
  or 
  

   abrupt 
  angulation, 
  or 
  else 
  expanded 
  so 
  as 
  to 
  be 
  distinctly, 
  generally 
  much, 
  

   broader 
  apically 
  than 
  at 
  the 
  extreme 
  base 
  ; 
  furcula 
  wanting 
  or 
  minute, 
  rarely 
  

   (M. 
  arlzonae) 
  a 
  fourth 
  as 
  long 
  as 
  the 
  snpraanal 
  plate. 
  

   e'. 
  Size 
  small 
  or 
  medium; 
  cerci 
  of 
  male 
  always 
  bifurcate 
  or 
  with 
  an 
  inferior 
  

   submedian 
  process 
  or 
  abrupt 
  angulation 
  ; 
  supraanal 
  plate 
  pretty 
  regularly 
  

   triangular, 
  with 
  straiglit 
  or 
  feebly 
  convex 
  lateral 
  margins; 
  furcula 
  usually 
  

   distinctly 
  developed, 
  rarely 
  {M.coUinns) 
  wanting; 
  prosternal 
  spine 
  usually 
  

   short 
  (25. 
  Collinus 
  series). 
  

   /'. 
  Lower 
  fork 
  of 
  bifurcation 
  of 
  male 
  cerci 
  much 
  longer 
  than 
  the 
  upjier; 
  

   apical 
  margin 
  of 
  subgenital 
  plate 
  narrowly, 
  abruptly, 
  and 
  considerably 
  

   elevated. 
  

   </'. 
  Small 
  species; 
  interval 
  between 
  mesosternal 
  lobes 
  of 
  male 
  more 
  than 
  

   twice 
  as 
  long 
  as 
  broad; 
  of 
  female 
  quadrate; 
  median 
  portion 
  of 
  male 
  

  

  cerci 
  cylindrical, 
  not 
  compressed". 
  111. 
  alp'niiis 
  (p. 
  333). 
  

  

  g-. 
  Very 
  small 
  species 
  ; 
  interval 
  between 
  mesosternal 
  lobes 
  of 
  male 
  half 
  

   as 
  long 
  again 
  as 
  broad; 
  of 
  female 
  transverse; 
  median 
  portion 
  of 
  male 
  

  

  cerci 
  compressed 
  — 
  112. 
  iiifantiJis 
  (p. 
  335). 
  

  

  /-. 
  Upper 
  fork 
  of 
  bifurcation 
  of 
  male 
  cerci 
  longer 
  than 
  the 
  lower, 
  which 
  

   is 
  sometimes 
  merely 
  an 
  inferior 
  median 
  or 
  i>ostme(Uau 
  jirocess; 
  apical 
  

   margin 
  of 
  subgenital 
  plate 
  elevated, 
  if 
  at 
  all, 
  only 
  broadly, 
  gradually, 
  and 
  

   a 
  little. 
  

   gK 
  Furcula 
  of 
  male 
  distinctly 
  present; 
  apical 
  margin 
  of 
  subgenital 
  

   plate 
  distinctly 
  elevated 
  more 
  or 
  less 
  above 
  the 
  lateral 
  margins. 
  

   /('. 
  Furcula 
  of 
  male 
  consisting 
  of 
  slender 
  spines, 
  longer 
  than 
  the 
  last 
  

   dorsal 
  segment; 
  base 
  of 
  lateral 
  margins 
  of 
  subgenital 
  plates 
  incurved, 
  

   i'. 
  Furcula 
  of 
  male 
  less 
  than 
  a 
  fourth 
  as 
  long 
  as 
  the 
  snpraanal 
  plate; 
  

   apical 
  half 
  of 
  cerci 
  bent 
  upward 
  from 
  the 
  basal 
  course. 
  

   ,/'. 
  Prozona 
  of 
  male 
  subquadrate; 
  supraanal 
  plate 
  with 
  the 
  apical 
  

   and 
  basal 
  portions 
  in 
  one 
  plane; 
  subgenital 
  plate 
  of 
  equal 
  or 
  sub- 
  

   equal 
  breadth 
  beyond 
  the 
  middle 
  113. 
  ?»)/(o?- 
  (p. 
  337). 
  

  

  _/'. 
  Prozona 
  of 
  male 
  distinctly 
  longitudinal; 
  supraanal 
  plate 
  with 
  

   the 
  apical 
  portion 
  distinctly 
  elevated 
  above 
  the 
  median; 
  subgen- 
  

   ital 
  plate 
  distinctly 
  narrowing 
  beyond 
  the 
  middle. 
  

  

  114. 
  coii/kshs 
  (p. 
  339). 
  

   i-. 
  Furcula 
  of 
  male 
  half 
  as 
  long 
  as 
  the 
  sujiraanal 
  plate; 
  anal 
  cerci 
  

  

  incurved 
  but 
  otherwise 
  straight 
  115. 
  arhoiiae 
  (\^.iiiO). 
  

  

  h-. 
  Furcula 
  of 
  male 
  consisting 
  of 
  brief 
  triangular 
  lobes; 
  base 
  of 
  lateral 
  

   margins 
  of 
  subgenital 
  jilate 
  not 
  incurved. 
  

   i'. 
  Interval 
  between 
  mesosternal 
  lobes 
  of 
  male 
  twice 
  as 
  long 
  as 
  

   broad; 
  upper 
  fork 
  of 
  cerci 
  scarcely 
  bent 
  upwartl 
  above 
  the 
  trend 
  of 
  

   the 
  basal 
  stem. 
  

   JK 
  Upper 
  fork 
  of 
  male 
  cerci 
  much 
  shorter 
  than 
  the 
  stem; 
  sub- 
  

   genital 
  plate 
  shorter 
  than 
  broad 
  116. 
  lecleri 
  (p. 
  341). 
  

  

  j'. 
  Upper 
  fork 
  nf 
  male 
  cerci 
  nearly 
  as 
  long 
  as 
  the 
  stem; 
  subgen- 
  

   ital 
  plate 
  of 
  equal 
  length 
  and 
  breadth 
  117. 
  deletor 
  (-p-Sid). 
  

  

  i^. 
  Interval 
  between 
  mesosternal 
  lobes 
  of 
  male 
  scarcely 
  longer 
  than 
  

   broad; 
  upper 
  (bik 
  of 
  cerci 
  bent 
  distinctly 
  ui)ward. 
  

  

  118. 
  hiridus 
  (p. 
  344). 
  

  

  