AGYRTRIA NIGRICAUD

Black-tailed Emerald.

A.

Thaumatias niyricauda, Elliot, Ibis, 1878, p. 47.

Agyriria mgricauda, Elliot, Synopsis of the Humming-Birds, p. 208 (1878).

Mr. Exxior, who originally placed this Species in the genus Thaumatias, has, in bis |

arger work, referred
it to dvyrtria. It differs from all the foregoing ne

mbers of the genus in having the under tail-coverts
green on the centre tail-feathers under certain lights.
ee WANG Species: ; cording to Mr. Elliot, is Guiana, Trinidad. ; Tornheeneten aoe
lhe home of this species, accor¢ Ing to Mr. Hiltot, is Guiana, ‘Trinidad, and North-eastern Brazil.
ntleman :—

“Upper parts bronzy green, darkest ou the head, and shading
Throat and breast shining metallic grass-green.

pure white. The tail is steel-black, with a tinge of

The following is the description given by the above-named ve

into purple on the upper tail-coverts.
Flanks dark green, with scarcely any lustre. Middle of
abdomen, vent, and under tail-coverts pure white. Tail steel-black, the two outermost feathers greenish
grey at their tips, the next merely edged with white at the tip. Maxilla brownish black; mandible
5 . ; = = a . . . 5»
flesh-colour, the tip black. Feet black. Total length 32 inches, wing 23, tail 1, bill along culmen &.

[R. B. S.J

AGYRTRIA NITIDICAUDA.

Bright-tailed Emerald.

Thaumatias nitidicauda, Elliot, Ibis, 1878, p. 48. :
Agyrtria nitidicauda, Elliot, Synopsis of the Humming-Birds, p. 208 (1878).

 

| | 1 res 1. nigricauda, but to differ
said by Mr. Elliot to resemble A. mg a 2
| olden green; the remaining ones with the
9 : 5) eee: >
, green; all the lateral tail-feathers are
5

Tus species, which comes from Guiana, 1s
ao . oe rectrices are
in the colour of the tail. The median pat of 8 ie
: Ree me c¢ 20
inner webs black, except the tip, the outer w ebs metallic g
tipped with bright metallic golden green. oe
0 > tvpe l s collec i= ;
He further describes the species from the type ae a coe eet he tee wel
: 9 ree ith a shebt c¢ J § ie
a arts bright bronzy green, wl! 2 ee men dull green.
‘ Adult. Upper parts brig a oe ‘allie grassereen. Blanks and abdo g
Throat, breast, and sides of the neck bright metallic gras WW; purplish brown Bill flesh-colour
ie - ; : PCG ings p :
i + tail-coverts pure white. §
Middle of abdomen, vent, and under tat

8 ”
i ail 13, bi ne culinen Z.
i Total length 32 inches, wing 24, tail 14, bill along
(perhaps red in life), with a dark tip. ote g

[R. B. S.]

white.

 
  
  
 
  
   
   
     
   
    
  
   
  
      
   
    
    

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