632 
Mr. Charles Chubb on the 
Cyanocompsa cyanea Ihering, Re vista Mus. Paulista, vi. 
p. 321 (Paraguay). 
Cyanocompsa sterea Oberholser, Proc. U.S. Nat. Mus. 
xxv. p. 146 (1902: Sapucay). 
a. $ ad. Sapucay, May 30, 1903. 
b. $ ad. ,, June 26, 1904. 
c. d, e. ad. et imm.; /, g. ? ad. Sapucay, July 1904. 
h, i. £ ad. et imm. Sapucay, August 1904. 
Having compared this series with more than forty other 
individuals of Guiraca cyanea in the British Museum, I 
find the specimens to be identical. There appears to be no 
evidence, therefore, to support the validity of Cyanocompsa 
sterea Oberholser. The size of the bill is, without doubt, 
a variable character in this species, as even two of the 
immature male specimens from Paraguay shew considerable 
variation from each other, and there are many instances of 
this kind in the large collection which I have consulted. 
[The young males of this species do not change to full 
adult male plumage until the autumnal moult of the second 
year after birth. That is to say, the birds are some eighteen 
months old before assuming the full adult plumage.— W, ,F."| 
212. Guiraca glaucoccerulea. 
Pico grueso azul Azara, Apunt. i. p. 440. no. cxix. (1802). 
Pyrrhula glaucoccerulea d'Orb. et Lafr. Syn. Av., Mag. 
de Zool. 1837, p. 85 (Maldonado) ; d’Orb. Voy. Amer. 
Merid., Ois. pi. 50. fig. 2. 
Guiraca glaucoccerulea Berlepsch, J. f. O. 1887, p. 115 
(Paraguay) ; Sharpe, Cat. B. Brit. Mus. xii. p. 75. 
Cyanoloxias glaucoccerulea Oberholser, Proc. U.S. Nat. 
Mus. xxv. p. 146 (1902: Sapucay); Ihering, Revista Mus. 
Paulista, vi. p. 321 (Paraguay). 
a. J ad. Sapucay, September 28, 1902. 
b. d imm. Sapucay, March 26, 1903. 
Bill black, dark slate-coloured below ; feet black; iris 
brown. 
c-h. B a d. et imm.; i. $ ad. Sapucay, June 1903-04. 
k, /, m. B ad. et imm.; n. $ ad. Sapucay, July 1904. 
<?, p. B ; q. ? ad. Sapucay, August 1904. 
r. B a( i.; s. B imm. Sapucay, September 1904. 
