214 - BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Pionus cobaltiyms Bonaparte, Rev. etMag. de Zool., (2) vi, 1854, 148 (monogr). — 



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

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

 P[sittactis] maximiliani (not of Kuhl) Cabanis, in Scbomburgk's Reis. Brit. 



Guiana, iii, 1848, 723. 

 Psittacus maximiliani Gray, List Birds Brit. Mus., Psittacidse, 1859, 75, part (in 



synonymy). 

 Pionus rnaximiliani (not of Kubl) Souance, Rev. et Mag. de Zool., 1856, 155; 



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

 Pionus rubrigulai'is Cabanis, Jonrn. fiir Om., April, 1881, 22, in text ("Central 



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

 Pionus menstruum rubrigularis Cabanis, Joimi. fiirOrn., April, 1881, 222, in text; 



Om. 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, 



Cbiriqui, w. Panama); Auk, x\'iii, 1901, 359 (Divala and David, Cliiriqui, 



w. Panama). 

 [Pionus vienstruus.] Svibspecies: rubrigularis Reichenow, Journ. fur Orn., 



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



PIONUS SENILIS (Spix). 



WHITE-CROWNED PARROT. 



Adult male. — Forehead, cro■v^^l, and upper half of loral region 

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

 ohm and throat, dark bluish green, the feathei-s naiTOwly margined 

 with bluish black, producing a squamate effect; hindneck similar, 

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

 aries, and proxunal greater wing-coverts olivaceous green (dark oil 

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

 upper back; rump and upper tail coverts bright parrot green; 

 lesser wing-coverts greenish oHve or olive-green to raw-umber brown 

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

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

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

 brownish terminally; distal greater coverts and secondaries blue 

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

 of outer web; primaries rich smalt blue, passing mto greenish blue 

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

 of longer primaries passing into green distally ; middle pah* of rectrices 

 bright parrot green, passing into blue on median terminal portion; 

 remaming rectrices dark blue on outer webs, the inner webs pure 

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

 blue, passing into green on edge; cliin 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 blue 

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

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

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

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



