ICTERUS. 463 
Supra nigerrimus, alarum tectricibus mediis et remigum marginibus externis albis, linea inter nares et oculos 
et corpore medio subtus flavissimis, gula media et hypochondriis nigris, subalaribus flavis, remigum mar- 
ginibus internis cineraceo-albis ; cauda flava, rectricibus quatuor mediis fere omnino nigris et ceterarum 
apicibus nigro terminatis; rostro plumbeo-nigro, pedibus plumbeis. Long. tota 7-3, ale 4-2, caude 3°5, 
rostri a rictu 0°85, tarsi 0-9. (Descr. exempl. ex Mexico. Mus. nostr.) 
Hab. Mexico} (de Saussure ®, T. Mann’), Guanajuato (Dugeés ®), valley of Mexico (White 3, 
le Strange ®), Orizaba (Boucard 2). 
Abundantly distinct, though evidently allied to I. bullock, this species is restricted 
in its range to Central Mexico. It was obtained by M. Boucard in the vicinity of 
Orizaba?, but Sumichrast 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 Dugés 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'. Rectricum eaternarum dimidium basale flavum. 
4. Icterus parisorum. 
Icterus parisorum, Bp. P. Z. 8. 1837, p.110'; Sel. P. ZS. 1858, p. 303°; 1860, p. 251°; 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. 17; 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 internis albo terminatis ; subtus ad medium pectus niger, abdomine et tectricibus subalaribus 
flavis, caude rectricum utrinque quatuor dimidio basali flavis, dimidio apicali et rectricibus quatuor 
mediis pro majore parte nigris ; rostro nigro, mandibulx basi et pedibus plumbeis. Long. tota 7°5, alz 4:2, 
caudee 3-4, rostri a rictu 1-1, tarsi 0°95. (Descr. maris ex Mexico. Mus. nostr.) 
Q olivacea supra fusco variegata, cauda olivaceo-fusca, alis albo bifasciatis; subtus flavicantior, ventre medio 
flavido. (Descr. exempl. ex urbe Mexico. Mus. nostr.) 
Hab. Nortu America, Texas, Arizona!, Lower California.—Mexico! 8 13 (Sallé *), Nuevo 
Leon and Coahuila (Couch 14), valley of Mexico ® (White+), San Bartolo (Perez 12), 
temperate and alpine regions of Vera Cruz (Swmichrast°), La Parada (Boucard ®), 
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 
