192 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



tertials) darker greenish blue (nearly cerulean blue) edged distally 

 with light yellowish green; inner (proximal) primaries greenish 

 blue passing into green distally; under primary coverts and under 

 surface of remiges dull glaucous-green, the primaries dusky toward 

 shaft; sides of head and under parts light yellowish green (apple 

 green); bill dull whitish terminally, abruptly grayish horn color or 

 dusky basally (wholly light colored in life?); iris yellow; legs and 

 feet deep brownish or dusky (in dried skins); length (skins), 129-140 

 (133); wing, 88.5-92 (90.6); tail, 42.5-51.5 (47); culmen, 12.5-13 

 (12.8); tarsus, 11.5-13.5 (12.1); outer toe, 13-14 (13.6).° 



Young male in transition plumage. — Similar to the adult male but 

 blue of rump and under wing-coverts intermixed with green, and 

 greater wing-coverts bluish green instead of blue. 



Young male, first plumage. — Lower back and rump, and under 

 wing-coverts wholly green (nearly paris green); otherwise like the 

 transition plumage described above. 



Adult female. — Similar to the young male but greater wing-coverts 

 green, concolor with back, etc., the secondaries darker green; length 

 (skins), 129-142 (133.5); wing, 86-93 (88.6); tail, 38.5-43 (41.6); 

 culmen, 11.5-13 (12.6); tarsus, 11.5-13 (12.1); outer anterior toe, 

 13.5-14 (13.9). 6 



Northwestern Mexico, in States of Sinaloa (Mazatlan; Presidio de 

 Mazatlan; Escuinapa; Cosala), Durango (Chacala), Zacatecas 

 (Hacienda San Juan Capistrano), Jalisco (Ixtapa), Colima (Man- 

 zanillo Bay), and Territory of Tepic (Tepic). 



Paittacula cyanopygia SouANci, Rev. et Mag. de Zool., 1856, 157 (no locality 

 mentioned); Icon. Perr., 1857-58, pi. 42. — Bonaparte, Naumannia, 1856 

 (Consp. Psitt., no. 134).— Ridqway, Proc. U. S. Nat. Mus., x, 1888, 570 

 (monogr.). — Salvadori, Cat. Birda Brit. Mus., xx, 1891, 249, part (Presidio 

 de Mazatlan, Sinaloa; Manzillo Bay, Colima); Ibis, 1906, 464 (additional 

 references). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1897, 581, 

 part (Mazatlan and Presidio de Mazatlan, Sinaloa; Manzanillo Bay; Jalisco). 



° Seven specimens. 



* Eight specimens. 



Locality. 



Wing. 



Tail. 



Cul- 



Tarsus. 



Outer fj 

 anterior 

 toe. 



HALES. 



Seven adult males of P. c. cyanopygia. 



Five adult males of P. c. pallida 



Six adult males of P. insularls 



FEMALES. 



Eight adult females of P. c. cyanopygia 



Ten adult females of P. c. pallida 



Three adult femnles of P. inmlaris 



90.6 



91 



91.1 



89.7 

 90.2 



47 



43.2 



43.4 



41.6 

 40.1 

 44.8 



12.8 

 12.6 

 13.7 



12.6 

 12.3 

 13.8 



12.1 



12 



13 



12.1 

 11.8 

 13.2 



13.6 

 13.4 

 13.8 



13.9 

 '13.5 

 13.8 



