﻿akt. 
  1 
  AMERICAN 
  PLOIARIINAE 
  McATEE 
  AND 
  MALLOCH 
  23 
  

  

  Localities. 
  — 
  Falls 
  Church, 
  Va., 
  August 
  1, 
  N. 
  Banks 
  (Holotype, 
  

   Coll. 
  Bergroth) 
  ; 
  same 
  locality, 
  August 
  22 
  (Amer. 
  Mus. 
  Nat. 
  Hist.) 
  

   same 
  locality, 
  August 
  6, 
  25, 
  N. 
  Banks 
  (Mus. 
  Comp. 
  Zool.) 
  ; 
  Plummer 
  

   Island, 
  Md., 
  June 
  27, 
  1911, 
  August 
  10, 
  1915, 
  H. 
  S. 
  Barber 
  (U.S. 
  

   N.M.) 
  ; 
  Contoocook, 
  N. 
  H., 
  July 
  16, 
  1920, 
  E. 
  W. 
  Hall 
  (Drake) 
  ; 
  

   Beverly, 
  Mass., 
  July 
  15, 
  1906 
  (Bost. 
  Soc. 
  Nat. 
  Hist.). 
  

  

  EMPICORIS 
  CULICIFORMIS 
  (De 
  Geer). 
  

  

  Cimex 
  culiciformis 
  De 
  Geek, 
  Charles. 
  Mem. 
  Hist. 
  Insects, 
  3, 
  1773, 
  pp. 
  

   323-8, 
  pi. 
  17, 
  figs. 
  1-S 
  [France]. 
  

  

  l'loiaria 
  alata 
  Scopoli, 
  J. 
  A. 
  Deliciae 
  Florae 
  et 
  Faunae 
  Insubricae, 
  etc., 
  

   pt. 
  3, 
  1788, 
  pp. 
  52-53, 
  pi. 
  25, 
  figs. 
  6-10 
  [Austria]. 
  

  

  Gerris 
  erraticus 
  Faixen, 
  C. 
  F. 
  Monographia 
  Cimicum 
  Sueciae, 
  1818, 
  pp. 
  

   117-118. 
  

  

  l'loiaria 
  maeulata 
  Haldeman, 
  S. 
  S. 
  Descriptions 
  of 
  several 
  new 
  species 
  and 
  

   one 
  new 
  genus 
  of 
  insects. 
  Proc. 
  Acad. 
  Nat 
  Sci. 
  Phila., 
  vol. 
  3 
  (1846-7) 
  1848, 
  

   p. 
  151 
  [Pennsylvania]. 
  A 
  longer 
  description 
  is 
  given 
  in 
  a 
  later 
  article 
  by 
  

   Haldeman 
  entitled 
  " 
  On 
  four 
  new 
  species 
  of 
  Hemiptera 
  of 
  the 
  genera 
  Ploiaria, 
  

   Cbermes, 
  and 
  Aleurodes," 
  etc. 
  (Amer. 
  Journ. 
  Sci., 
  ser. 
  2, 
  vol. 
  9, 
  1850, 
  p. 
  108). 
  

  

  Ploiariodes 
  errabunda 
  Banks, 
  N. 
  Emesidae, 
  1909, 
  p. 
  46 
  [Va., 
  Md.]. 
  

  

  We 
  have 
  before 
  us 
  several 
  European 
  specimens 
  of 
  this 
  species 
  in- 
  

   cluding 
  one 
  male. 
  A 
  number 
  of 
  North 
  American 
  specimens, 
  com- 
  

   prising 
  males 
  also, 
  agree 
  in 
  every 
  particular 
  Avith 
  those 
  from 
  Europe 
  

   so 
  that 
  we 
  have 
  been 
  compelled 
  to 
  accept 
  the 
  American 
  species 
  as 
  

   culiciformis. 
  In 
  color 
  it 
  agrees 
  very 
  closely 
  with 
  errabundus 
  but 
  it 
  

   is 
  distinguished 
  structurally 
  as 
  indicated 
  in 
  the 
  key, 
  and 
  also 
  by 
  the 
  

   lateral 
  carina 
  of 
  the 
  pronotum 
  lacking 
  the 
  anterior 
  process. 
  The 
  

   apical 
  sternite 
  in 
  male 
  is 
  more 
  broadly 
  rounded 
  at 
  apex 
  than 
  in 
  erra- 
  

   bundus 
  and 
  the 
  hj^popygial 
  claspers 
  are 
  knobbed 
  at 
  apices 
  as 
  shown 
  

   in 
  figure 
  9. 
  No 
  other 
  species 
  so 
  far 
  as 
  we 
  know 
  has 
  this 
  last 
  struc- 
  

   tural 
  peculiarity. 
  The 
  wings 
  are 
  as 
  in 
  errabundus 
  but 
  the 
  hind 
  pair 
  

   are 
  not 
  spotted 
  apically 
  (fig. 
  10). 
  Apical 
  antennal 
  segment 
  about 
  

   half 
  as 
  long 
  as 
  preapical. 
  One 
  or 
  two 
  of 
  the 
  basal 
  ventral 
  spines 
  on 
  

   fore 
  femur 
  quite 
  prominent. 
  

  

  Length, 
  4—4.5 
  mm. 
  

  

  Localities.— 
  Boston, 
  Mass., 
  Oct. 
  26,1921, 
  H. 
  Biddle 
  (Bost. 
  Soc. 
  Nat. 
  

   Hist.) 
  ; 
  Pennsylvania, 
  June, 
  Uhler 
  Coll. 
  labeled 
  as 
  type 
  of 
  Ploiaria 
  

   maeulata 
  Haldeman 
  (U. 
  S. 
  N. 
  M.) 
  ; 
  Plummer 
  Island, 
  Md., 
  May 
  22, 
  

   1912, 
  at 
  light, 
  E. 
  A. 
  Schwarz 
  (U. 
  S. 
  N. 
  M.) 
  ; 
  Kenilworth, 
  D. 
  C, 
  July 
  

   26, 
  1912, 
  O. 
  Heidemann 
  (Cornell 
  Univ.) 
  ; 
  Eastern 
  Branch, 
  D. 
  C, 
  

   May 
  14, 
  1901, 
  at 
  light, 
  A. 
  Busck 
  (Van 
  Duzee) 
  ; 
  May 
  wood, 
  Va., 
  Oct. 
  

   16, 
  1915, 
  W. 
  L. 
  McAtee 
  (McAtee) 
  ; 
  Vienna, 
  Va., 
  Aug. 
  17, 
  1913, 
  H. 
  G. 
  

   Barber 
  (Barber) 
  ; 
  Falls 
  Church, 
  Va., 
  May 
  27, 
  July 
  20, 
  25, 
  Aug. 
  2, 
  

   29, 
  N. 
  Banks 
  (M. 
  C. 
  Z.) 
  ; 
  Falls 
  Church, 
  Va., 
  July 
  20, 
  N. 
  Banks 
  (Cor- 
  

   nell 
  Univ.) 
  ; 
  Falls 
  Church, 
  Va., 
  Aug. 
  6, 
  and 
  no 
  date 
  (Van 
  Duzee) 
  ; 
  

   Falls 
  Church, 
  Va., 
  Aug. 
  7, 
  N. 
  Banks 
  (Parshley) 
  ; 
  Falls 
  Church, 
  Va., 
  

  

  