﻿art. 
  1 
  AMERICAN 
  PLOIAMINAE 
  McATEE 
  AND 
  MALLOCH 
  109 
  

  

  177), 
  filling 
  the 
  space 
  between 
  hypopygium 
  and 
  seventh 
  tergite, 
  ex- 
  

   cept 
  for 
  a 
  narrow 
  vertical 
  space 
  between 
  their 
  apices. 
  

  

  Female. 
  — 
  Color 
  and 
  pubescence 
  as 
  in 
  male; 
  abdomen 
  widening 
  

   gradually 
  from 
  base, 
  the 
  dorsal 
  sutures 
  evident; 
  seventh 
  tergite 
  

   with 
  the 
  hind 
  angles 
  moderately 
  produced 
  as 
  obtusely 
  pointed 
  pro- 
  

   cesses, 
  margin 
  between 
  distinctly 
  concave, 
  without 
  tubercle; 
  eighth 
  

   tergite 
  semielliptical, 
  with 
  a 
  median 
  carina 
  interrupting 
  the 
  trans- 
  

   verse 
  corrugations; 
  ninth 
  tergite 
  rather 
  short, 
  median 
  carina 
  and 
  

   cross 
  corrugations 
  low, 
  indistinct, 
  apex 
  narrowly 
  rounded. 
  Seventh 
  

   sternite 
  moderately 
  produced 
  medianly 
  as 
  a 
  rounded 
  lobe, 
  the 
  sides 
  

   of 
  hind 
  margin 
  concave 
  ; 
  eighth 
  sternite 
  visible 
  only 
  as 
  a 
  long 
  ellipse 
  

   on 
  each 
  side. 
  

  

  Length, 
  25-28 
  mm. 
  

  

  Holotype. 
  — 
  Male, 
  paratype 
  male, 
  allotype 
  female, 
  Chapada, 
  

   Brazil, 
  collected 
  in 
  July, 
  April, 
  and 
  August, 
  respectively 
  (Carnegie 
  

   Mus.). 
  

  

  GHILIANELLA 
  CLAVIVENTRIS 
  Bergroth. 
  

  

  Ghilianella 
  claviventris 
  Bergroth, 
  E. 
  Ploeariinen 
  1906, 
  pp. 
  318-9 
  [Vene- 
  

   zuela]. 
  

  

  Male. 
  — 
  Dark 
  reddish-brown, 
  frontal 
  spine, 
  connexivum, 
  hind 
  edge 
  

   of 
  sixth 
  tergite, 
  posterior 
  third 
  of 
  seventh 
  and 
  a 
  few 
  other 
  edgings, 
  

   yellowish. 
  Head 
  and 
  thorax 
  scarcely 
  granulate; 
  pale 
  reddish 
  

   pubescence 
  very 
  short, 
  fine 
  and 
  sparse. 
  Abdomen 
  widening 
  gradually 
  

   to 
  apical 
  fourth 
  of 
  fourth 
  segment, 
  which 
  is 
  abruptly 
  inflated 
  and 
  

   together 
  with 
  the 
  fifth 
  and 
  most 
  of 
  the 
  sixth 
  segment 
  forms 
  a 
  

   globular 
  expansion 
  of 
  the 
  abdomen 
  ; 
  remainder 
  of 
  abdomen 
  tapering 
  

   posteriorly 
  and 
  upcurved. 
  The 
  fifth 
  tergite 
  is 
  finely 
  longitudinally 
  

   strigate 
  and 
  is 
  smoothly 
  inflated, 
  without 
  ridged 
  elevations 
  laterally. 
  

   The 
  sixth 
  tergite 
  is 
  distinctly 
  trisinuate 
  posteriorly, 
  and 
  the 
  seventh 
  

   narrowing 
  from 
  the 
  basal 
  third, 
  has 
  the 
  posterior 
  half 
  transversely 
  

   wrinkled 
  and 
  an 
  acuminate 
  apex 
  which 
  slightly 
  surpasses 
  hy- 
  

   popygium. 
  Sutures 
  between 
  sternites 
  concave 
  anteriorly, 
  that 
  be- 
  

   tween 
  sixth 
  and 
  seventh 
  most 
  so 
  ; 
  hind 
  edge 
  of 
  seventh 
  conspicuously 
  

   emarginate 
  medianly 
  and 
  only 
  slightly 
  less 
  so 
  laterally; 
  eighth 
  

   sternite 
  visible 
  on 
  its 
  entire 
  width, 
  nearly 
  straight 
  posteriorly 
  ; 
  ninth 
  

   sternite, 
  or 
  hypopygium, 
  rather 
  long, 
  more 
  or 
  less 
  granulate 
  and 
  

   transversely 
  wrinkled, 
  opening 
  upward, 
  claspers 
  oblong, 
  somewhat 
  

   upturned 
  and 
  bluntly 
  pointed 
  at 
  apex. 
  

  

  Length, 
  26 
  mm. 
  

  

  Two 
  males, 
  Colonia 
  Tovar, 
  E. 
  Simon 
  1.11.88 
  (Coll. 
  E. 
  Bergroth). 
  

   One 
  the 
  type. 
  Another 
  male 
  Cerro 
  del 
  Avila, 
  6,000 
  feet, 
  Venezuela, 
  

   December, 
  1913, 
  S. 
  M. 
  Klages 
  (Carnegie 
  Mus.). 
  

  

  