214 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Pionus cobaltinus Bonaparte, Rev. et Mag. de Zool., (2) vi, 1854, 148 (monogr).- 



Sclatee, Proc. Zool. Soc. Lond., 1855, 163 (Bogota, Colombia). 

 [Pionus] cobaltinus Sharpe, Hand-list, ii, 1900, 22 (Colombia). 

 P[sittacus] maximiliani (not of Kubl) Cabanis, in Scnomburgk's Reis. Brit 



Guiana, iii, 1848, 723. 

 Psittacus maximiliani Gray, List Birds Brit. Mus., Psittacidae, 1859, 75, part (ii 



synonymy). 

 Pionus maximiliani (not of Kuhl) Sotjance, Rev. et Mag. de Zool., 1856, 155 



Icon. Perr., 1858, pi. 34, fig. 2. 

 Pionus rubrigularis Cabanis, Journ. fur Orn., April, 1881, 22, in text ("Centra 



Amerika"); 1882, 119 (crit.); Orn. Centralb., no. 9, May 1, 1881, 70, in text 

 Pionus menstruus rubrigularis Cabanis, Journ. fiir Orn., April, 1881, 222, in text 



Orn. Centralb., no. 9, May 1, 1881, 70, in text.— Bangs, Proc. New Engl 



Zool. Club, ii, 1900, 16 (Loma del Leon, Panama; crit.); iii, 1902, 25 (Bugaba 



Chiriqui, w. Panama); Auk, xviii, 1901, 359 (Divala. and David, Chiriqui 



w. Panama). 

 [Pionus menstruus.] Subspecies: rubrigularis Reichenow, Journ. fur Orn. 



1881, 362 (monogr.); Consp. Psitt., 1882, 202. 



PIONUS SENILIS (Spix). 



WHITE-CROWNED PARROT. 



Adult male. — Forehead, crown, and upper half of loral regioi 

 immaculate white (usually more or less soiled) ; rest of head, excep 

 chin and throat, dark bluish green, the feathers narrowly marginec 

 with bluish black, producing a squamate effect; hindneck similar 

 but ground color less bluish green; back, scapulars, proximal second 

 aries, and proximal greater wing-coverts olivaceous green (dark oi 

 green), the feathers narrowly margined with black, especially oi 

 upper back; rump and upper tail coverts bright parrot green 

 lesser wing-coverts greenish olive or olive-green to raw-umber browi 

 on exposed portion (oil green on concealed part), more or less dis 

 tinctly tipped with paler (at least the more anterior coverts), th 

 middle coverts oil green passing into olive-green, greenish olive, o 

 brownish terminally; distal greater coverts and secondaries bin 

 (deep cobalt or paris blue) next to shaft, passing into green on edg 

 of outer web; primaries rich smalt blue, passing into greenish blu 

 on tip and narrowly edged with light (cerulean) blue, the outer web 

 of longer primaries passing into green distally ; middle pair of rectrice 

 bright parrot green, passing into blue on median terminal portion 

 remaining rectrices dark blue on outer webs, the inner webs pun 

 poppy red for more than proximal half, the distal portion darl 

 blue, passing into green on edge; chin and upper throat dull white 

 sometimes suffused with pale red or pinkish on lower portion 

 chest and breast bluish green broadly barred with dull dark bin 

 (the latter on tips of the feathers, the former as a subtermina 

 band) ; sides, flanks, and abdomen green, the last, however, usuall; 

 (always in full plumage ?) broken by broad bluish tips to the feathers 

 at least on upper portion; posterior portion of thighs white; unde 



