﻿112 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  07 
  

  

  GHILIANELLA 
  COLONA, 
  new 
  species. 
  

  

  Male. 
  — 
  Similar 
  in 
  general 
  to 
  G. 
  aracataca, 
  but 
  the 
  pubescence 
  of 
  

   head 
  and 
  thorax 
  less 
  abundant 
  and 
  none 
  of 
  it 
  pollinose; 
  abdomen 
  

   gradually 
  widening 
  to 
  seventh 
  segment, 
  which 
  differs 
  from 
  that 
  of 
  

   aracataea 
  as 
  described 
  in 
  key 
  ; 
  eighth 
  sternite 
  almost 
  straight 
  on 
  hind 
  

   margin, 
  the 
  spiracles 
  conspicuously 
  pedunculate. 
  

  

  Length, 
  22 
  mm. 
  

  

  Holotype. 
  — 
  Male, 
  Don 
  Diego, 
  Dept. 
  Magdalena, 
  Colombia 
  (Car- 
  

   negie 
  Mus.). 
  A 
  nymph 
  with 
  same 
  data 
  probably 
  is 
  this 
  species. 
  

  

  GHILIANELLA 
  BETHEI 
  Dohrn. 
  

  

  Ghilianella 
  bethel 
  Dohrn, 
  A. 
  Nachtrage, 
  1S63, 
  pp. 
  68-70 
  [Bogota]. 
  

  

  Female. 
  — 
  Fuscous, 
  relieved 
  by 
  ochraceous 
  spots 
  and 
  clouding; 
  leg 
  

   bands 
  faint. 
  Head 
  and 
  thorax 
  distinctly 
  granulate, 
  short 
  pale 
  pu- 
  

   bescence 
  rather 
  abundant, 
  that 
  of 
  abdomen 
  shorter 
  and 
  less 
  plenti- 
  

   ful. 
  Frontal 
  spine 
  pale, 
  decurved. 
  Abdomen 
  widening 
  to 
  apex 
  

   of 
  fifth 
  segment 
  and 
  narrowing 
  gradually 
  to 
  end, 
  clavate 
  rather 
  

   than 
  bulbous 
  in 
  shape. 
  Fifth 
  tergite 
  with 
  angular 
  dilatations 
  near 
  

   hind 
  angles, 
  sixth 
  with 
  a 
  prominent, 
  acute, 
  falcate 
  tubercle 
  ; 
  seventh 
  

   nearly 
  straight 
  across 
  hind 
  margin, 
  the 
  middle 
  of 
  latter 
  slightly 
  

   elevated 
  and 
  with 
  a 
  short 
  pointed 
  tubercle; 
  eighth 
  tergite 
  semi-cir- 
  

   cular, 
  transversely 
  rugose, 
  but 
  scarcely 
  longitudinally 
  carinate; 
  9th 
  

   rather 
  inflated 
  basally, 
  obsoletely 
  rugose, 
  depressed 
  subapically, 
  with 
  

   the 
  apical 
  margin 
  rounded 
  and 
  elevated. 
  Sutures 
  between 
  sternites 
  

   inclined 
  anteriorly 
  and 
  showing 
  more 
  or 
  less 
  anterior 
  curvature 
  

   medianly; 
  hind 
  margin 
  of 
  seventh 
  moderately 
  angulate, 
  prominent 
  

   medianly 
  and 
  slightly 
  concave 
  laterally. 
  

  

  Length, 
  20-22 
  mm. 
  

  

  Cacagualito, 
  Colombia, 
  May; 
  Bonda, 
  Colombia, 
  June 
  (Carnegie 
  

   Mus.). 
  

  

  The 
  specimens 
  listed 
  seem 
  to 
  answer 
  well 
  to 
  the 
  original 
  descrip- 
  

   tion, 
  the 
  only 
  real 
  discrepancy 
  being 
  that 
  none 
  of 
  them 
  show 
  " 
  a 
  

   slight 
  cross 
  furrow 
  " 
  on 
  the 
  apic'al 
  half 
  of 
  tergite 
  5. 
  However, 
  this 
  

   appearance 
  in 
  Dohrn's 
  specimen 
  may 
  have 
  been 
  due 
  to 
  bending 
  at 
  

   the 
  time 
  of 
  capture 
  or 
  to 
  some 
  effect 
  of 
  drying. 
  

  

  GHILIANELLA 
  ARACATACA, 
  new 
  species. 
  

  

  Male. 
  — 
  Dark 
  reddish-brown, 
  pubescence 
  rather 
  abundant, 
  more 
  

   or 
  less 
  pollinose 
  in 
  character 
  anteriorly 
  ; 
  beak 
  yellow-brown, 
  frontal 
  

   spine 
  whitish, 
  leg 
  bands 
  moderately 
  distinct; 
  abdomen 
  gradually 
  

   widened 
  to 
  fifth 
  segment, 
  sixth 
  narrowed, 
  seventh 
  swollen, 
  as 
  thick 
  

   as 
  fifth; 
  tergites 
  slightly 
  elevated 
  at 
  the 
  middle 
  of 
  their 
  posterior 
  

   margins, 
  seventh 
  twice 
  as 
  long 
  as 
  sixth; 
  sternites 
  2-7 
  more 
  or 
  less 
  

   emarginate 
  apically 
  and 
  sinuate 
  laterally, 
  the 
  sixth 
  most 
  pronounced 
  

  

  