ICTEETJS. 463 



Supra nigerrimus, alarum tectricibus mediis et remigum marginibus extemis albis, linea inter nares efc oculos 

 et oorpore medio subtus flavissimis, gula media et hypochondriis nigris, subalaribus flavis, remigum mar- 

 ginibus intemis cineraceo-albis ; cauda flava, rectricibus quatuor mediis fere omnino nigris et ceterarum 

 apicibuB nigro terminatis ; rostro plumbeo-nigro, pedibus plumbeis. Long, tota 7-3, alae 4-2, caudae 3-5, 

 rostri a rictu 0-85, tarsi 0-9. (Descr. exempl. ex Mexico. Mus. nostr.) 



Hah. Mexico ^ {de Saussure ^, T. Mann^), Guanajuato {Duges % valley of Mexico ( White \ 

 le Strange % Orizaba {Boucard^). 



Abundantly distinct, though evidently allied to /. bullocM, this species is restricted 

 in its range to Central Mexico. It was obtained by M. Boucard in the vicinity of 

 Orizaba ^, but Suraichrast is silent as to its occurrence in the State of Vera Cruz. We 

 have not unfrequently met with specimens from the vicinity of the city of Mexico ; 

 and Duges records it from Guanajuato. Of its habits nothing has been put on record. 

 We have little doubt that Wagler's description of his Psarocolius costototl refers to this 

 bird, being based upon a somewhat immature individual. Whether it is the " Costototl " 

 of Hernandez, the Oriolus costototl of authors, is more than we can say. We have no 

 female of this species accessible for description. The bird described as a female by 

 Mr. Sclater appears to us to be a young male commencing to assume its adult dress. 



b'. Bectricum externarum dimidium hasaleflavvm. 

 L Icterus parisorum. 



/cifeTO«i?amon<m, Bp. P.Z. S. 1837, p. llO^j Scl. P. Z, S. 1858, p. 308='; I860, p. 351'; 1864, 

 p. 175"; Ibis, 1883, p. 365'; Cat. B. Brit. Mus. xi. p. 374"; Baird, Mex. Bound. Surv., 

 Zool. Birds, p. 19, t. 19. f. I''; Cass. Pr. Ac. Phil. 1867, p. 54'; Sumichrast, Mem. Bost, 

 Soc. N. H. i. p. 553 " ; Baird, Brew., & Ridgw. N. Am. B. ii. p. 188 " ; Scott, Auk, ii. p. 1"; 

 Perez, Pr. U. S. Nat. Mus. 1886, p. 150". 

 Icterus melanochrysura, Less. Rev. Zool. 1839, p. 105 ". 

 Icterus scottii, Couch, Pr. Ac. Phil. 1854, p. 66 ". 



Supra nigerrimus, dorso postico et tectricibus alarum minoribus flavis, tectricibus majoribus ad basin albis, his 

 et secundariis iuternis albo terminatis ; subtus ad medium pectus niger, abdomine et tectricibus subalaribus 

 flavis, caudse reotricum utrinque quatuor dimidio basali flavis, dimidio apicali et rectricibus quatuor 

 mediis pro majore parte nigris ; rostro nigro, mandibulae basi et pedibus plumbeis. Long, tota 7-5, alae 4-2, 

 caudiE 3-4, rostri a rictu 1-1, tarsi 0-95. (Descr. maris ex Mexico. Mus. nostr.) 

 5 olivaoea supra fusco variegata, cauda olivaceo-fusca, alis albo bifasciatis ; subtus flavicantior, ventre medio 



flavido. (Descr. exempl. ex urbe Mexico. Mus. nostr.) 

 Hah. North Ameeica, Texas, Arizona ii. Lower California. — Mexico ^ ^ i3 (^SallS ^), Nuevo 

 Leon and Coahuila (Couch ^^), valley of Mexico ^ {White % San Bartolo {Perez '^% 

 temperate and alpine regions of Vera Cruz {Sumichrast ^), La Parada {Boucard 2). 



Icterus parisorum occurs in numbers in the States joining our northern frontier — 

 Arizona, New Mexico, and Texas, where it resides during the summer months from 

 April to September, and where it breeds ; it is also common in lower California. In 

 winter it passes southwards as far as Central Mexico and the States of Puebla and Vera 



