188 BULLETIN" 50, UNITED STATES NATIONAL MUSEUM. 



yellow (or both) — never with red or orange; sexes different, females 

 being without any blue. 



Range. — Western Mexico; Colombia to Peru, Bolivia, Brazil, and 

 Guiana; apparently wanting in whole of area from southern Mexico 

 to Panama. (About twelve species.) 



KEY TO THE SPECIES AND SUBSrECIES OP PSITTACULA. 



a. Wings with more or less of blue. {Adult males.) 

 h. Rump blue, 

 c. Forehead, cheeks, and thi-oat clear yellow. (Eastern Peru.) 



Psittacula xanthops (extraliinital).a 

 cc. Forehead, cheeks, and throat, gi-een. 

 d. Orbital or postocular region blue. 

 e. Forehead and cheeks light yellowish green (apple green); postocular 

 region light azure blue; under "parts light pea green; back, scapulars, 

 and proximal secondaries light grayish olive-green. {Psittacula ccelcstis.) 

 f. Back, etc., gi'ayer; under parts more grayish green; blue of rump darker 

 (deep hyacinth blue). (Western Peru and Ecuador.) 



Psittacula coelestis coelestis, adult male (extralimital.)^ 

 ff. Back, etc., more brownish, more strongly contrasted with color of 

 hindneck; under parts more yellowish green, becoming olive-buff on 

 flanks; blue of rump lightar (smalt blue). (Colombia.) 



Psittacula coelestis lucida, adult male (extralimital).c 



ee. Forehead and checks deep emerald green; orbital region cobalt blue; 



under parts light bluish green (nearly malachite green) ; back, scapulars, 



and proximal secondaries light parrot green. (Colombia and eastern 



Ecuador.) Psittacula conspicillata, adult male (extralimital).*^ 



dd. Sides of head wholly green. 



e. Smaller under wing-coverts wholly uniform blue (except carpo-metacarpal 

 edge) ; proximal primaries blue. 



O'Psittacula xanthops Salvin, Novit. ZooL, ii, no. 1, Feb. 1, 1895, 19, pi. 2, fig. 2 

 (Viiia, Huamachuco, o. Peru; coll. Tring Mus.?); Baron, Novit. Zool., iv, 1897, 6 

 (Viiia, Maranon); Salvadori, Ibis, 190G, 4G2 (reprint orig. descr.; crit.). 



^Agapornis ccelestis Lesson, Compl. CEuvr. de Buffon (Levdque), xx, April, 1847, 

 198 (near Guayaquil, w. Ecuador; quotes Echo du Monde Savant, 1844, pi. 2). — 

 Psittacula ca'lestis Lafresnaye, Rev. Zool., 1848, 172; Finsch, Die Papag., ii, pt. 2, 

 1868, 666; Ridgway, Proc. U. S. Nat. Mus., x, 1887, 537 (monogr.); Salvadori, Cat. 

 Birds Brit. Mus., xx, 1891, 241. — Psittaculus ccelestis Schlegel, Mus. Pays-Bas, Psittaci, 

 1864, 32. 



<^ P{sittacula\ ccelestis lucida Ridgway, Proc. U. S. Nat. Mus., x, sig. 34, Aug. 6, 

 1888, 532, 538 (Colombia; coll. Post. Soc. Nat. Hist.); Salvadori, Cat. Birds Brit. 

 Mus., XX, 1891, 242, footnote. 



^ Psittacula conspicillata Lafresnaye, Rev. et Mag. de Zool., xi, 1848, 172 (Colombia 

 or Mexico; coll. Lafresnaye, now in coll. Best. Soc. Nat. Hist.); Finsch, Die Papag., 

 ii, pt. 2, 1868, 663, part; Ridgway, Proc. U. S. Nat. Mus., x, 1887, 536 (monogr.); 

 Salvadori, Cat. Birds Brit. Mus., xx, 1891, 243. — Psittaculus conspicillatus Schlegel, 

 Mus. Pays-Bas, Psittaci, 1864, 32. — [Psittacula] cyanopis Lichtenstein, Nom. Mus. 

 Berol., 1854, 71 (Colombia; nomen nudum!). — "Psittacula orbitula, Reichb., in 

 Schaufuss Catal. 1862" (Finsch, Die Papag., ii, 1868, 663). 



