﻿art. 
  1 
  AMERICAN 
  PLOIARIINAE 
  McATEE 
  AND 
  MALLOCH 
  93 
  

  

  Abdomen 
  widest 
  at 
  fifth 
  segment, 
  tergites 
  lacking 
  pilose 
  spots 
  ; 
  spiracles 
  

   blackish 
  gladiator, 
  new 
  species 
  (p. 
  115). 
  

  

  20. 
  Hind 
  margin 
  of 
  sixth 
  sternite 
  almost 
  straight 
  ; 
  head 
  and 
  thorax 
  copiously, 
  

  

  coarsely 
  granulate 
  ; 
  seventh 
  tergite 
  triangular 
  apically, 
  not 
  keeled, 
  ex- 
  

   rending 
  little 
  if 
  any 
  beyond 
  hypopygium 
  (fig. 
  175) 
  ; 
  apical 
  antennal 
  seg- 
  

   ment 
  only 
  a 
  little 
  longer 
  than 
  subapical 
  pascoei 
  Bergroth 
  (p. 
  106). 
  

  

  Hind 
  margin 
  of 
  sixth 
  sternite 
  with 
  a 
  broad 
  central 
  rounded 
  concavity 
  and 
  

   smaller 
  lateral 
  ones, 
  the 
  sternite 
  longest 
  at 
  a 
  point 
  between 
  the 
  lateral 
  

   margin 
  and 
  median 
  line 
  21 
  

  

  21. 
  Head 
  and 
  thorax 
  conspicuously 
  granulate; 
  length 
  15 
  to 
  17 
  mm. 
  

  

  minimula, 
  new 
  species 
  (p. 
  105). 
  

   Head 
  and 
  thorax 
  not 
  conspicuously 
  granulate 
  ; 
  longer 
  species 
  22 
  

  

  22. 
  Eighth 
  sternite 
  visible 
  on 
  its 
  entire 
  width, 
  the 
  spiracle 
  moderately 
  peduncu- 
  

  

  late 
  \ 
  23 
  

  

  Eighth 
  sternite 
  with 
  the 
  sides 
  more 
  or 
  less 
  concealed 
  27 
  

  

  23. 
  Abdomen 
  nearly 
  cylindrical 
  ; 
  clasper 
  very 
  broadly 
  triangular, 
  width 
  at 
  apex 
  

  

  equaling 
  length 
  (fig. 
  177) 
  personata, 
  new 
  species 
  (p. 
  108). 
  

  

  Abdomen 
  otherwise 
  ; 
  clasper 
  not 
  so 
  broadly 
  triangular 
  24 
  

  

  24. 
  Abdomen 
  clavate, 
  posterior 
  angles 
  of 
  tergites 
  subangularly 
  ampliate 
  ; 
  

  

  tergites 
  lacking 
  dark 
  warts 
  on 
  middle 
  of 
  hind 
  margins. 
  

  

  angulata 
  (Uhler) 
  (p. 
  128). 
  

  

  Abdomen 
  parallel-sided 
  ; 
  tergites 
  2-6 
  each 
  with 
  a 
  small 
  dark 
  wart 
  at 
  

  

  middle 
  of 
  hind 
  margin 
  25 
  

  

  25. 
  Narrowed 
  portion 
  of 
  seventh 
  tergite 
  distinctly 
  longer 
  than 
  terminal 
  ex- 
  

  

  panded 
  part 
  (fig. 
  170) 
  persimilis, 
  new 
  species 
  (p. 
  103). 
  

  

  Narrowed 
  portion 
  of 
  seventh 
  tergite 
  distinctly 
  shorter 
  than 
  terminal 
  ex- 
  

   panded 
  part 
  26 
  

  

  26. 
  Claspers 
  of 
  about 
  same 
  width 
  throughout 
  their 
  length; 
  pale 
  species. 
  

  

  productilis 
  Barber 
  (p. 
  102). 
  

   Claspers 
  wide 
  subbasally, 
  much 
  narrowed 
  apically 
  ; 
  dark 
  species. 
  

  

  simillima, 
  new 
  species 
  (p. 
  102). 
  

  

  27. 
  Eighth 
  sternite 
  visible 
  only 
  at 
  center, 
  its 
  sides, 
  including 
  spiracles, 
  covered 
  ; 
  

  

  abdomen 
  with 
  flecks 
  of 
  denser 
  pubescence 
  ; 
  fore 
  femur 
  gradually 
  thickened 
  

  

  from 
  base 
  to 
  first 
  ventral 
  spine 
  maculata, 
  new 
  species 
  (p. 
  108). 
  

  

  Spiracles 
  of 
  eighth 
  sternite 
  exposed 
  ; 
  head, 
  thorax 
  and 
  abdomen 
  with 
  

   patches 
  of 
  dense 
  golden 
  pubescence; 
  fore 
  femur 
  thickened 
  on 
  basal 
  half 
  

   of 
  that 
  part 
  basad 
  of 
  the 
  first 
  ventral 
  spine 
  (fig. 
  215). 
  

  

  insidiatrix 
  Bergroth 
  (p. 
  126). 
  

  

  KEY 
  TO 
  THE 
  SPECIES. 
  

  

  Females. 
  

  

  1. 
  Mesothorax 
  (viewed 
  from 
  above) 
  longer 
  than 
  prothorax 
  2 
  

  

  Mesothorax 
  not 
  longer 
  than 
  prothorax 
  17 
  

  

  2. 
  Abdomen 
  with 
  a 
  bulbous 
  swelling 
  beyond 
  middle, 
  and 
  prominent 
  lateral 
  

  

  elevations 
  on 
  either 
  fifth 
  or 
  'sixth 
  tergites 
  (figs. 
  196,201) 
  3 
  

  

  Abdomen 
  without 
  bulbous 
  swelling 
  or 
  lateral 
  elevations 
  on 
  fifth 
  and 
  sixth 
  

   tergites 
  . 
  12 
  

  

  3. 
  Fifth 
  tergite 
  the 
  widest, 
  its 
  sides 
  before 
  hind 
  margin 
  prominently 
  ele- 
  

  

  vated, 
  usually 
  standing 
  above 
  connexivum 
  4 
  

  

  Sixth 
  tergite 
  about 
  as 
  wide 
  as 
  or 
  wider 
  than 
  fifth, 
  bearing 
  a 
  large 
  median 
  

   tubercle 
  (fig. 
  184) 
  15 
  

  

  