﻿326 
  JOURNAL 
  OF 
  THE 
  WASHINGTON 
  ACADEMY 
  OF 
  SCIENCES 
  VOL. 
  12, 
  NO. 
  14 
  

  

  is 
  paler 
  above 
  and 
  has 
  the 
  white 
  markings 
  on 
  the 
  rectrices 
  more 
  extensive. 
  

   From 
  isthmica 
  the 
  new 
  form 
  is 
  distinguished 
  by 
  smaller 
  size 
  and 
  more 
  exten- 
  

   sive 
  rufous 
  brown 
  on 
  the 
  throat. 
  

  

  One 
  specimen 
  in 
  the 
  series 
  of 
  croteta 
  examined 
  is 
  marked 
  "Orenoco 
  River, 
  

   Venezuela," 
  without 
  other 
  designation. 
  The 
  bird 
  in 
  question 
  has 
  the 
  heavy 
  

   bill 
  characteristic 
  of 
  this 
  form, 
  but 
  as 
  it 
  is 
  a 
  trade 
  skin, 
  secured 
  from 
  the 
  

   Museum 
  Boucard, 
  the 
  locality 
  is 
  open 
  to 
  doubt. 
  

  

  Dyctiopicus 
  mixtus 
  malleator, 
  subsp. 
  nov. 
  

  

  Characters. 
  — 
  ^Similar 
  to 
  Dyctiopicus 
  mixtus 
  mixtus 
  (Boddaert)^ 
  but 
  more 
  

   heavily 
  streaked 
  on 
  entire 
  under 
  surface, 
  with 
  less 
  extensive 
  white 
  markings 
  

   above, 
  and 
  auricular 
  patch 
  slightly 
  darker. 
  

  

  Description.— 
  Type, 
  U. 
  S. 
  Nat. 
  Mus. 
  Cat. 
  No. 
  284,616, 
  adult 
  male, 
  from 
  

   Las 
  Palmas, 
  Chaco, 
  Argentina, 
  collected 
  July 
  23, 
  1920, 
  by 
  Alex. 
  Wetmore 
  

   (orig. 
  No. 
  4549). 
  Forehead 
  dark 
  drab; 
  crown, 
  nape 
  and 
  upper 
  hind-neck 
  

   black, 
  feathers 
  of 
  the 
  crown 
  streaked 
  lightly 
  with 
  white, 
  those 
  of 
  nape 
  some- 
  

   what 
  elongated, 
  tipped 
  with 
  coral 
  red, 
  forming 
  a 
  patch 
  on 
  either 
  side, 
  more 
  

   or 
  less 
  confluent 
  at 
  back 
  ; 
  antrorse 
  nasal 
  plumes 
  dull 
  white, 
  mixed 
  with 
  black 
  

   filoplumes; 
  lower 
  hind-neck, 
  back 
  and 
  rump 
  black, 
  barred 
  broadly 
  with 
  white 
  

   to 
  pale 
  olive-buff, 
  the 
  light 
  areas 
  slightly 
  less 
  in 
  extent 
  than 
  the 
  black 
  ; 
  upper 
  

   tail-coverts 
  black 
  bordered 
  and 
  tipped 
  with 
  large 
  spots 
  of 
  white; 
  primaries 
  

   and 
  secondaries 
  between 
  hair 
  brown 
  and 
  chaetura 
  drab 
  spotted 
  regularly 
  

   and 
  extensively 
  with 
  white 
  forming 
  regular 
  bands; 
  secondaries 
  tipped 
  with 
  

   white; 
  wing 
  coverts 
  black, 
  each 
  feather 
  with 
  a 
  large 
  irregular, 
  sometimes 
  

   heart-shaped, 
  spot; 
  rectrices 
  black, 
  barred 
  narrowly 
  with 
  pale 
  olive-buff, 
  

   the 
  bars, 
  passing 
  diagonally 
  across 
  the 
  web 
  toward 
  the 
  shaft; 
  a 
  streak 
  from 
  

   in 
  front 
  of 
  eye 
  behind 
  rictus 
  to 
  below 
  auricular 
  region, 
  and 
  a 
  superciliary 
  

   stripe, 
  beginning 
  at 
  front 
  of 
  eye, 
  dull 
  white, 
  the 
  superciliary 
  stripe 
  expanded 
  

   at 
  sides 
  of 
  nape 
  into 
  a 
  white 
  patch; 
  auricular 
  region 
  forward 
  to 
  eye 
  darker 
  

   than 
  hair 
  brown, 
  bordered 
  above 
  and 
  behind 
  with 
  black 
  ; 
  under 
  surface 
  dull 
  

   white 
  to 
  pale 
  olive-buff 
  (more 
  or 
  less 
  stained) 
  ; 
  throat 
  and 
  fore-neck 
  with 
  elon- 
  

   gate 
  spots 
  of 
  black; 
  sides 
  of 
  neck 
  and 
  breast 
  with 
  prominent 
  black 
  streaks; 
  

   sides, 
  abdomen 
  and 
  under 
  tail-coverts 
  spotted 
  and 
  cross-barred 
  heavily 
  

   and 
  irregularly 
  with 
  black; 
  under 
  wing 
  coverts 
  dull 
  white, 
  spotted 
  with 
  black. 
  

   Maxilla 
  dark 
  neutral 
  gray; 
  mandible 
  deep 
  mouse 
  gray 
  with 
  mandibular 
  

   rami 
  slate-gray; 
  tarsus 
  and 
  toes 
  blackish 
  slate 
  (from 
  dried 
  skin). 
  

  

  Measurements. 
  — 
  Male, 
  one 
  specimen 
  (type), 
  wing 
  87.4, 
  tail 
  48.5, 
  exposed 
  

   culmen 
  19.6, 
  tarsus 
  18.5 
  mm. 
  Females, 
  three 
  specimens, 
  wing 
  82.3-86.6 
  

   (84.9), 
  tail 
  45-55 
  (49.3), 
  exposed 
  culmen 
  16.6-18.0 
  (17.3), 
  ^ 
  tarsus 
  17.5-19.0 
  

   (18.2) 
  mm. 
  

  

  Range. 
  — 
  Northern 
  Argentina 
  from 
  the 
  Territory 
  of 
  Chaco 
  (Las 
  Palmas) 
  

   and 
  Tucuman 
  (Tapia), 
  north 
  in 
  the 
  Chaco 
  to 
  northern 
  Paraguay 
  (Puerto 
  

   Pinasco) 
  

  

  Reinarks. 
  — 
  The 
  subspecies 
  described 
  above 
  is 
  represented 
  by 
  a 
  male 
  and 
  

   a 
  female 
  from 
  Las 
  Palmas, 
  Chaco, 
  a 
  female 
  from 
  Tapia, 
  Tucuman, 
  and 
  

   a 
  female 
  from 
  Kilometre 
  80, 
  west 
  of 
  Puerto 
  Pinasco, 
  Paraguay. 
  It 
  is 
  dis- 
  

   tinguished 
  from 
  the 
  typical 
  form 
  from 
  Buenos 
  Aires 
  (represented 
  by 
  four 
  

  

  * 
  Picus 
  mixtus 
  Boddaert, 
  Tabl. 
  Plan. 
  Enl. 
  47. 
  1783. 
  (Buenos 
  Aires.) 
  

   ^ 
  From 
  two 
  specimens. 
  

  

  