BIRDS OF NOETH AND MIDDLE AMEBIOA. 323 



I Clyanolyca'] omata Cabanis, Mus. Hein., i, Oct., 1851, 223 (Mexico). 



Oyanolyca omata Salvin and Godman, Biol. Centr.-Am., Aves, i, 1887, 499. — 

 Chapman, Bull. Am. Mus. N. H., x, 1898, 30 (Jalapa).— Lantz, Trans. 

 Kans. Ac. Sci. for 1896-97 (1899), 222 (Coatepec, Vera Cruz). 



[_Oyanurus] ornatus Gkay, Hand-list, ii. 1870, 4, no. 6099 (Mexico). 



[Oyanodtta'] cyanicollk Lichtenstein, Nomencl. Av. Mus. Berol., 1854, 9 (Mex- 

 ico; nomen nudum!). 



Oyanolyca mitrata Eidgway, Auk, xvi, July, 1899, 255 (to replace preoccupied 

 name omata). 



CYANOLYCA CUCULLATA (Ridgway). 

 COSTA RICAN AZTTRE-HOODED JAY. 



Similar to O. mitrata, but slightly smaller, blue hood without any- 

 lateral white margin, and hindneck deeper (less brownish) ):)lack. 



Adult 7nale.— Length (skins), 250-260 (254); wing, 116-120 (118); 

 tail, 122.5-129 (127.1); exposed culmen, 24r-2l.5 (26.1); depth of bill 

 at nostrils, 12-12.5 (12.2); tarsus, 36-39 (37.5); middle toe, 21-21.5. 

 (21.4). « 



Eastern Costa Rica (Navarro, El Zarcero de Alajuela, Rio Sucio, 

 etc.); Veragua (Chitra) ; Chiriqui (Volcan de Chiriqui, 7,000 ft.); Isth- 

 mus of Panama. 



Oyanocitta omata [not Pica onujta Lesson) Salvin, Ibis, 1870, 114 (Costa Rica). — 



Zeledon, Cat. Aves de Costa Rica, 1882, 10. 

 [Cyanodtta'] omata Sclateb and Salvin, Norn. Av. Nef)tr., 1873, 39, part (Costa 



Rica). 

 Cyanocorax oi-natus (not of Gray) Sharpe, Cat. Birds Brit. Mus., iii, 1877, 127, 



part (Veragua). 

 Cyanocorax cucullatns Ridgway, Proc. U. S. Nat. Mus., viii, Ai)i-. 20, 1885, 23 



(Navarro, e. Costa Rica; coll. U. S. Nat. Mus.). — Zeledon, Anal. Mus. Nac. 



Costa Rica, i, 1887, 113 (El Zarcero de Alajuela and Rio Sucio, t- . Costa 



Rica). 

 Oyanolyca cucullata Salvin and Godman, Biol. Ceiitr.-Ain., Avei<, i, Apr., 1887, 



500 (Rio Sucio and Navarro, e. Costa Rica; Isthmus of Panama). — Bangs, 



Proc. New Engl. Zool. Club, iii, 1902, 57 (Volcan de Chiriqui, 7,000 ft.). 



Genus APHELOCOMA Cabanis. 



Aphelocoma^ Cabanis, Mus. Hein., i, Oct., 1851, 221, footnote. (Type, Oar- 

 rulus californicus Vigors. ) 



Medium-sized or rather small jays, without any crest, and with the 

 prevailing color uniform blue or blue and gray. 



Widdfication. — Nest in bushes, small trees, or vines, open above, 

 composed of dry twigs, etc., lined with finer materials. Eggs 3-6, 

 pale greenish or bluish speckled with brown, etc. (immaculate greenish 

 blue in A. sieberii arizonse. ) 



Range. — Western United States to highlands of (iuatemala; Florida 

 (one species). (About nine species.) 



"Four specimens; three from Volcan de Chiriqui (Caribbean slope), one from 

 Chitra, prov. Code, Panama. " 



6 "Von &4)i\riij SqblicM, und koMiVi Haupthaar." 



