
 
		THAUMATIAS  VIRIDICEPS,   Gould. 
 Green-headed  Emerald. 
 Thaumatias viridiceps, Goulil in  Proe.  of Zool. Soe.,  part xxviii.  p. 307. 
 T he  present species,  which  I have  no hesitation in pronouncing  new to science, may be  regarded  as  one of  
 the  most  recently discovered  members  of  the  family Trochilidie,  since I received  it  direct  from Quito  in  
 the year 1860.  The bird, it is  true, has several representatives  in other parts of South America, particularly  
 in the eastern and  north-eastern parts  of  that country.  It far  exceeds  most of  the  other members of the  
 genus  Thaumatias  in  the  size  and  strength of  its bill and in  the robustness of  its body.  Although I have  
 said I received  this  bird  direct  from Quito,  it  must  not  be  supposed  that I mean  that  it  is found in the  
 immediate vicinity of  that  city;  on the contrary, I am convinced  that  it  is  not, and believe that  its proper  
 habitat  is  the warmer  district  of Nanegal, as  it was  accompanied  by other  species  which  are  known  to  
 inhabit  that  part of Ecuador.  I possess  three  specimens  of  this  bird,  which  it would  appear  comprise  
 representatives  of  both  sexes;  and  if  such be  the  case,  then  the female  merely differs from  the  male  in  
 being of smaller size, in having a less brilliantly  coloured crown,  and the two outer  tail-feathers tipped with 
 greyish white.  ,  .  , 
 This somewhat remarkable species is almost as stout  in  its bill, head, and body as the members of the genus  
 Cyatumyia, while its tail  is short and the feathers  narrow,  as in  Thaumatias leucogaster and  71  chaaopectus. 
 Crown of the head, nape, and  sides of the neck glittering light green ;  back and shoulders bronzy green;  
 throat and abdomen  pure white;  flanks white, faintly spotted with yellowish green;  under tail-coverts white ;  
 tail-feathers  purplish  grey, with  an  obscure  band of  purplish  brown near the  tip of  the three  outer  ones  
 on  each side  upper  mandible black;  under mandible yellowish,  except at  the extreme  tip, which  is black. 
 The figures  are of the size of life.  The plant is  the  Eeelyaa Caravata.