﻿art. 
  1 
  AMERICAN 
  PLOIARIINAE 
  McATEE 
  AND 
  MALLOCH 
  29 
  

  

  terior 
  lobe 
  of 
  prothorax 
  about 
  1.5 
  as 
  long 
  as 
  wide, 
  much 
  tapered 
  

   posteriorly, 
  barely 
  half 
  as 
  wide 
  at 
  posterior 
  as 
  at 
  anterior 
  margin, 
  

   dorsum 
  arched, 
  posterior 
  lobe 
  slightly 
  widened 
  posteriorly, 
  a 
  little 
  

   longer 
  than 
  anterior 
  lobe, 
  with 
  a 
  broad 
  shallow 
  median 
  depression, 
  

   posterior 
  width 
  less 
  than 
  greatest 
  length, 
  no 
  tubercles 
  near 
  posterior 
  

   margin. 
  Legs 
  less 
  elongate 
  and 
  hairy 
  than 
  usual 
  in 
  the 
  genus 
  ; 
  fore 
  

   tibia 
  and 
  tarsus 
  as 
  in 
  figure 
  18. 
  Hypopygium 
  as 
  in 
  figure 
  16. 
  

  

  Length, 
  8-9 
  mm. 
  

  

  Data 
  for 
  specimens 
  examined: 
  Arizona, 
  C. 
  U. 
  Lot 
  34 
  (Uhler 
  

   Coll.) 
  ; 
  Oracle, 
  Ariz., 
  July 
  23; 
  Yerington, 
  Nev., 
  July 
  13, 
  J. 
  P. 
  Baum- 
  

   berger; 
  Los 
  Angeles, 
  Calif., 
  August 
  (U.S.N.M.). 
  The 
  holotype 
  also 
  

   was 
  examined 
  (M. 
  C. 
  Z.). 
  

  

  Subgenus 
  Stenolemus 
  Signoret. 
  

  

  STENOLEMUS 
  PRISTINUS, 
  new 
  species. 
  

  

  Female. 
  — 
  Head, 
  anterior 
  lobe 
  of 
  prothorax, 
  and 
  abdomen 
  con- 
  

   spicuously 
  marked 
  and 
  clouded 
  with 
  brownish 
  fuscous 
  and 
  the 
  fore 
  

   wings 
  almost 
  entirely 
  of 
  that 
  color, 
  with 
  the 
  veins, 
  some 
  reticulating 
  

   lines, 
  and 
  a 
  few 
  minute 
  dots, 
  whitish. 
  The 
  antennal, 
  and 
  femoral, 
  

   and 
  tibial 
  annuli 
  of 
  mid 
  and 
  hind 
  legs 
  are 
  very 
  pale 
  brown 
  and, 
  

   with 
  the 
  exception 
  of 
  the 
  preapical 
  one 
  on 
  each 
  femur, 
  inconspicu- 
  

   ous; 
  front 
  coxa 
  with 
  2, 
  and 
  front 
  femora 
  and 
  tibiae 
  with 
  4 
  rather 
  

   conspicuous 
  brown 
  bands. 
  

  

  Head 
  broader 
  than 
  long, 
  eyes 
  large, 
  covering 
  much 
  more 
  than 
  

   half 
  the 
  entire 
  length 
  of 
  side 
  of 
  head, 
  transverse 
  suture 
  on 
  dorsum 
  

   not 
  very 
  deep, 
  posterior 
  lobe 
  with 
  two 
  small 
  but 
  sharp 
  processes 
  on 
  

   dorsum 
  anteriorly; 
  antennae 
  much 
  stouter 
  than 
  usual, 
  with 
  long 
  

   hairs, 
  third 
  segment 
  fully 
  as 
  long 
  as 
  fourth. 
  Anterior 
  lobe 
  of 
  pro- 
  

   thorax 
  subquadrate, 
  not 
  tapered, 
  separated 
  from 
  posterior 
  lobe 
  by 
  

   a 
  deep 
  constriction, 
  posterior 
  lobe 
  widened 
  from 
  anterior 
  to 
  poste- 
  

   rior 
  margin, 
  with 
  four 
  distinct 
  but 
  not 
  very 
  large 
  tubercles 
  near 
  

   posterior 
  margin 
  ; 
  mesothoracic 
  and 
  metathoracic 
  spines 
  compara- 
  

   tively 
  short 
  and 
  stout. 
  Spines 
  on 
  fore 
  legs 
  much 
  shorter 
  than 
  in 
  

   any 
  of 
  the 
  other 
  species, 
  the 
  basal 
  one 
  not 
  bent 
  towards 
  base 
  of 
  

   femur 
  (fig. 
  17). 
  Abdomen 
  elongate 
  ovate, 
  third, 
  fourth, 
  and 
  fifth 
  

   tergites 
  each 
  with 
  an 
  angular 
  projection 
  near 
  posterior 
  lateral 
  

   angles; 
  venter 
  without 
  submedian 
  spines, 
  spiracles 
  elevated. 
  Poste- 
  

   rior 
  discal 
  cell 
  of 
  fore 
  wing 
  with 
  a 
  longitudinal 
  vein 
  bisecting 
  it, 
  

   vein 
  emitted 
  by 
  basal 
  discal 
  cell 
  not 
  as 
  close 
  to 
  base 
  as 
  in 
  next 
  

   species, 
  the 
  cell 
  acute 
  at 
  base. 
  

  

  Length, 
  7.5 
  mm. 
  

  

  Holotype.— 
  Key 
  West, 
  Fla., 
  April 
  9, 
  E. 
  A. 
  Schwarz 
  (U.S.N.M-). 
  

  

  The 
  fore 
  tibia 
  in 
  this 
  species 
  has 
  about 
  three 
  series 
  of 
  minute 
  sub- 
  

   decumbent 
  black 
  setulae 
  on 
  venter, 
  while 
  in 
  pallidipennis 
  it 
  has 
  two 
  

  

  