BIRDS OF NORTH AND MIDDLE AMERICA. 48 



The above veiy imperfect description ma}^ be supplemented l)y the 

 following-, taken from the colored plate cited: 



Pileum with feathers black centrall}-, margined with light l^lue, 

 becoming- light green on nape; interscapular region light green, the 

 feathers with black central spots (partly exposed); wings black, the 

 greater coverts and secondaries edged with blue, the lesser coverts 

 wholly blue (more greenish along posterior margin) ; beneath very pale 

 greenish, the feathers of lower throat and sides of chest (not the breast, 

 as in the description quoted) with large central spots of black; lores 

 black, 



Callisle s. Callispiza sdateri (not Calliste sdaterl Lafresnaye) Cabanis, Journ. fiir 

 Orn., xiv, May, 1866, 163 (Guatemala; coll. Berlin Mus.). 



Calliste cabanisi Sclater, Ibis, 2d ser., iv, Jan., 1868, 71, pi. 3 (Costa Cuca, 

 w. Guatemala; coll. Berlin Mus.) ; Cat. Birds Brit. Mus., xi, 1886, 123. — 

 Salvin and Godman, Biol. Centr.-Am., Aves, i, 1883, 271. 



{^Callistel cahanm Sclater and Salvin, Nom. Av. Neotr., 1873, 19. 



CALOSPIZA GYROLOIDES (Lafresnaye). 

 BLUE-RUMPED GREEN TANAGER, 



Adult male. — Head, except throat, uniform bright reddish chestnut 

 or bay; general color of upper parts bright yellowish grass green, 

 separated from liav of head by a more or less distinct nuchal band or 

 half -collar of yellow; rump cerulean or turquoise blue, the feathers 

 green immediately beneath surface, gray basally; lesser wing-coverts 

 mostl}' yellow; under parts cerulean or turquoise blue (the feathers 

 green immediatel}" beneath surface and gray at base), passing into yel- 

 lowish green on upper part and sides of throat, the sides and flanks 

 more or less tinged with green; under tail-coverts and posterior por- 

 tion of flanks clear 3'ellowish green; thighs cinnamon; bill blackish 

 brown, becoming paler on basal portion of mandible; legs and feet 

 horn color (in dried skins); length (skins), 121.9-141 (128.8); wing, 

 71.1-82.6 (77); tail, 47.5-54.0 (51.3); exposed culmen, 9.9-12.2 (10.7); 

 depth of bill at base, 4.8-6.1 (5.6); tarsus, 16.5-19.6 (17.8); middle toe, 

 11.4-12.7 (11.9).^ 



Adult female. — Similar in coloration to the adult male, but uuich 

 duller; head much duller chestnut, sometimes strongly olivaceous on 

 pileum, the color without the sharp delinition of the male; blue of 

 rump more restricted, sometimes obsolete; lesser wing-coverts with 

 less yellow, sometimes merely tinged with yellow; blue of under parts 

 paler, more greenish (nile blue, more turquoise on breast); length 

 (skins), 121.9-139.7 (131.8); wing, 69.6-76.2 (73.2); tail, 47.8-50.8 



^ Fifteen specimens. 



