480 BIRDS OF BRITISH GUIANA. 



Genus CYANERPES Oberh. 

 Cjjanerpes Oberholser, Auk, xvi. p. 32, 1899. Type G. cyaneus (Linn.). 



S23 



Fig. 182. — Cyanerpes cyaneus. 



The members o£ tliis genus are also small birds with brightly- 

 coloured plumage and whitish feet. The bill is proportionately 

 long, slender, and slightly decurved «t the tip. The wing is 

 more or- less pointed, the three outer primaries being longest and 

 about equal. The tail is square at the tip and rather more th.-in 

 half the length of the wing. The tarsus is about three-fourths tiie 

 length of the exposed culmen. Coloration : male and female 

 different. 



Key to the Species. 



A. Crown of head turquoise-blue ; upper back 

 black; chin and throat blue ; under wing- 

 coverts yellow C cyaneus, d , p. 480. 



a. Lores black ; throat greenish white ; 



under wing-coverts yellow 0. cyaneus, $ , p. 481. 



13. Crown of head pui-plish blue ; upper back 

 also purplish blue ; chin and throat black ; 

 under wing-coverts also black C. ctsruleus, <S , p. 483. 



b. Lores rust-coloured; throat fawn-colour; 



under wing-coverts cream- white C cwruleus, 5 . P- 483. 



652. Cyanerpes cyaneus. 



Blue Honey-C^rbepee. 



Certhia cyanea Linn. Syst. Nat. i. p. 188, 1766 ("Brasilia Cayaniii"). 

 Arbelorhina cyanea Cab. in Schomb. Keis. Guian. iii. p, 675, 1848. 

 Caereha cyana Salvin, Ibis, 1885, p. 207 (Bartica Grove, Merumfi 



Mts., Camacusa, Eoi-aima, 3500 ft.) ; Sclafcer, Cat. B. Brit. Mus. 



xi. p. 32, 1886 (Koi-aima, Camacusa, Bai-tica). 

 Cyanerpes cyaneus Beebe, Our Search for a Wilderness, p. 158 (Hoorie 



Creek), p. 340 (Aremu), 1910 ; Brabouriie & Chubb, B. S. Amer. i. 



p. 397, no. 4077, 1912. 

 Cyanerpes cyaneus cyaneus Beebe, Tropical Wild Life in British Guiana, 



p. 241, 1917. 



Adult male. Crown of head turquoise-blue ; base of forehead, 

 lores, eyelids, and a spot behind the eye velvety black like the 



