CHLOROSTILBON STUEBEL

Stuibel’s Emerald.

I, Meyer.

Chlorostilbon stubelii, Meyer, in Madarasz, Zeitschr. ges. Orn. i. p. 206 (1884)

Tuts species, which we have not seen, was discovered by Dr. Stibel in the province of Yung

as, in Bolivia.
It is described by Dr. Meyer, as follows :—* Upper surface bronzy green ;

head coppery; below golden
green, the breast bluish; wings purplish brown; tail black, tinged with violet-purple ; bill black. Total
length 3:1 inches, wing 1:9, tail 1-0, bill 0:7.”

Dr. Meyer has sent us the following translation of his original article :-—

“Dr. Stiibel procured the specimen described, on the 15th of December, 1876, when descending from the
village Yumata (2200 metres) to the Rio Tanampaya (1200 metres).

‘Besides the type specimen, Dr. Stiibel got from the same spot another specimen, which appears to be
rather young, the bronze glow being less conspicuous. I have named the species in honour of its discoverer.

“Besides these two examples, the Dresden Museum possesses a similar specimen without any exact habitat ;
but the colour of the tail is rather faint and deeper black, and some grey terminal spots appear to prove a
still younger stage of plumage.

“These birds belong to the section of the genus Chlorostiljon, which Elhot separated as a group, with
black bills (see Syn. Troch. p. 243). This author enumerates three species, C. angustipennis, C. atala, and
C. prasinus; but C. stuebelii cannot be referred to any one of these, on account of the foun of its tail, not to
mention the colour; it cannot be referred to C. angustipennis, as the tail of this species is forked and much
longer; nor to C. atala, the tail of which is emarginated and bluish black’) mon to C. prasinus, the tail of
which is short, straight, and bluish black. The form of the tail of C. siuctala is slightly emarginated, de
rectrices being rather broad. In consideration of the high and isolated habitat, I do not doubt that Bhai:
is a good species, the more so as C. atala, which it resembles in ca characters, only ae a

“T remarked, en passant, that some specimens of C. angustipenns (i aD z the De a ] pe i
not a totally black bill, as this is lighter at the base of the mandibles. Lele (. c. p. 246) says ae :
black bill is the single character to be relied on for distinguishing G: ree ee ae with the forkec
tail; but, according to what I have here stated, this character is not to be fully relied on.

[R. B. S.J

SAVY CAS) W- ABS «

  
  
   
   
  
 
 
 
 
  
 
 
 
 
 
 
 
    
 
 
  
    

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