﻿art. 
  1 
  AMERICAN 
  PLOIARIINAE 
  McATEE 
  AND 
  MALLOCH 
  27 
  

  

  3. 
  Prothorax 
  not 
  distinctly 
  pedunculate, 
  anterior 
  lobe 
  tapered 
  posteriorly, 
  tu- 
  

  

  bercles 
  on 
  posterior 
  lobe 
  nearly 
  obsolete; 
  subapical 
  antennal 
  segment 
  less 
  

   than 
  half 
  as 
  long 
  as 
  apical 
  : 
  fore 
  tibia 
  slender 
  (fig. 
  20) 
  about 
  twice 
  as 
  long 
  as 
  

   fore 
  coxa 
  and 
  as 
  long 
  as 
  head 
  and 
  thorax 
  combined 
  ; 
  mesothoracic 
  and 
  me- 
  

  

  tathoracic 
  spines 
  long 
  and 
  slender 
  pallidipennis, 
  new 
  species 
  (p. 
  30). 
  

  

  Prothorax 
  pedunculate, 
  the 
  peduncle 
  sharply 
  differentiated 
  from 
  the 
  anterior 
  

   and 
  posterior 
  swollen 
  lobes 
  and 
  about 
  as 
  long 
  as 
  or 
  longer 
  than 
  the 
  former 
  ; 
  

   posterior 
  lobe 
  with 
  four 
  tubercles 
  near 
  hind 
  margin 
  4 
  

  

  4. 
  Abdomen 
  without 
  submedian 
  spines 
  on 
  venter 
  in 
  addition 
  to 
  the 
  pedicillate 
  

  

  spiracles 
  ; 
  posterior 
  discal 
  cell 
  bisected 
  longitudinally 
  by 
  a 
  distinct 
  vein 
  : 
  

   basal 
  and 
  apical 
  bands 
  on 
  hind 
  femur 
  brownish, 
  the 
  middle 
  one 
  deep 
  black 
  

  

  and 
  very 
  conspicuous 
  schwarzi 
  Bergroth 
  (p. 
  30). 
  

  

  Abdomen 
  with 
  a 
  pair 
  of 
  submedian 
  spines 
  on 
  hind 
  margin 
  of 
  sternites 
  3 
  to 
  5 
  

   or 
  at 
  least 
  on 
  3 
  and 
  4 
  in 
  addition 
  to 
  the 
  pedicillate 
  spiracles 
  5 
  

  

  5. 
  Submedian 
  spines 
  on 
  venter 
  distinguishable 
  only 
  on 
  sternites 
  3 
  and 
  4, 
  poste- 
  

  

  rior 
  discal 
  cell 
  not 
  bisected 
  by 
  a 
  longitudinal 
  vein 
  (fig. 
  24) 
  ; 
  all 
  hind 
  fem- 
  

   oral 
  dark 
  bands 
  broad 
  and 
  fuscous 
  in 
  color, 
  not 
  conspicuously 
  dark 
  

  

  pilose 
  variatus, 
  new 
  species 
  (p. 
  31). 
  

  

  Submedian 
  spines 
  on 
  abdomen 
  present 
  on 
  sternites 
  3 
  to 
  5, 
  inclusive 
  6 
  

  

  6. 
  The 
  small 
  cross-vein 
  behind 
  basal 
  discal 
  cell 
  in 
  line 
  with 
  the 
  posterior 
  ex- 
  

  

  tremity 
  of 
  the 
  vein 
  closing 
  that 
  cell 
  (fig. 
  25) 
  ; 
  submedian 
  spines 
  near 
  hind 
  

   margin 
  of 
  pronotum 
  not 
  acute, 
  mere 
  convexities 
  on 
  surface 
  ; 
  posterior 
  discal 
  

   cell 
  without 
  longitudinal 
  vein 
  ; 
  dark 
  bands 
  on 
  hind 
  femora 
  except 
  the 
  apical 
  

  

  one 
  very 
  narrow 
  interstitialis, 
  new 
  species 
  (p. 
  31). 
  

  

  The 
  small 
  cross-vein 
  behind 
  basal 
  discal 
  cell 
  distinctly 
  proximad 
  of 
  the 
  

   posterior 
  extremity 
  of 
  the 
  vein 
  closing 
  that 
  cell 
  (fig. 
  28) 
  ; 
  submedian 
  spines 
  

   near 
  posterior 
  margin 
  of 
  pronotum 
  acute 
  7 
  

  

  7. 
  Posterior 
  discal 
  cell 
  of 
  forewing 
  bisected 
  longitudinally 
  by 
  a 
  distinct 
  vein 
  ; 
  

  

  mesothoracic 
  and 
  metathoracic 
  spines 
  not 
  thickened 
  near 
  apices 
  8 
  

  

  Posterior 
  discal 
  cell 
  of 
  forewing 
  not 
  bisected 
  by 
  a 
  distinct 
  vein 
  ; 
  meso- 
  

   thoracic 
  and 
  metathoracic 
  spines 
  more 
  or 
  less 
  swollen 
  near 
  apices 
  (figs. 
  31. 
  

   32) 
  ; 
  tubercles 
  on 
  hind 
  lobe 
  of 
  head 
  prominent, 
  acute 
  9 
  

  

  8. 
  Dark 
  bands 
  on 
  hind 
  femora 
  broad, 
  separated 
  by 
  about 
  their 
  own 
  width, 
  

  

  brown 
  in 
  color, 
  the 
  short 
  hairs 
  uniformly 
  brown 
  on 
  all 
  bands 
  ; 
  bands 
  on 
  

   hind 
  tibiae 
  pale, 
  third 
  one 
  from 
  base 
  especially 
  so 
  ; 
  sixth 
  tergite 
  without 
  a 
  

   pair 
  of 
  submedian 
  spines 
  at 
  apex 
  ; 
  wing 
  venation 
  as 
  in 
  figure 
  26 
  : 
  basal 
  

   discal 
  cell 
  with 
  two 
  or 
  three 
  narrow 
  whitish 
  lines 
  through 
  the 
  dark 
  in- 
  

   terior 
  hirtipes, 
  new 
  species 
  (p. 
  32). 
  

  

  Dark 
  bands 
  on 
  hind 
  femora 
  narrow, 
  separated 
  by 
  much 
  more 
  than 
  their 
  own 
  

   width, 
  the 
  basal 
  bands 
  black 
  and 
  black 
  haired, 
  the 
  apical 
  one 
  golden 
  

   haired; 
  bands 
  on 
  hind 
  tibiae 
  all 
  black; 
  sixth 
  tergite 
  with 
  a 
  pair 
  of 
  sub- 
  

   median 
  spines 
  at 
  apex 
  ; 
  basal 
  discal 
  cell 
  with 
  numerous 
  reticulating 
  pale 
  

   lines 
  in 
  dark 
  part 
  mexicanus, 
  new 
  species 
  (p. 
  32). 
  

  

  9. 
  Portion 
  of 
  vein 
  along 
  inner 
  margin 
  of 
  basal 
  discal 
  cell 
  longer 
  than 
  the 
  por- 
  

  

  tion 
  along 
  same 
  margin 
  of 
  posterior 
  discal 
  cell, 
  and 
  much 
  arcuated 
  ba- 
  

   sally 
  (fig. 
  29) 
  ; 
  mesothoracic 
  and 
  metathoracic 
  spines 
  as 
  in 
  figure 
  31. 
  

  

  spiniger, 
  new 
  species 
  (p. 
  33). 
  

   Portion 
  of 
  vein 
  along 
  inner 
  margin 
  of 
  basal 
  discal 
  cell 
  shorter 
  than 
  that 
  along 
  

   same 
  margin 
  of 
  posterior 
  discal 
  cell, 
  and 
  but 
  little 
  arcuate 
  basally 
  ; 
  meso- 
  

   thoracic 
  and 
  metathoracic 
  spines 
  as 
  in 
  figure 
  32. 
  

  

  perplexus, 
  new 
  species 
  (p. 
  33). 
  

  

  