VIREO. 201 
p. 481°; Baird, Brew. & Ridgw. N. Am. B. i. p. 389‘; Lawr. Bull. U.S. Nat. Mus. no. 4, 
p. 18°; Coues, B. Col. Vall. i. p. 526°; Salv. Cat. Strickl. Coll. p. 113%. 
Supra olivaceus, pileo cinerascente, oculis albo conspicillatis ; alis et cauda nigricantibus, illis sordide albo 
limbatis et indistincte bifasciatis, hac dorsi colore marginata; subtus albus, hypochondriis ochraceo 
indutis ; rostro et pedibus plumbeis. Long. tota 4°6, alee 2-2, caude 1:9, rostri a rictu 0°65, tarsi 0°8. 
(Deser. exempl. ex Mazatlan, Mexico. Mus. nostr.) 
Obs. V. noveboracensi similis, sed inter alia oculis albo nec flayo conspicillatis distinguendus. 
Hab. Norra America, Missouri river to the base of the Rocky Mountains +4, Arizona 8, 
Texas *.—Mexico (Galeotti’), Mazatlan (orrer), Santa Efigenia and Tehuantepec 
city (Sumichrast*). 
This species is probably only a migrant to the isthmus of Tehuantepec, where 
Prof. Sumichrast observed it in October and December®. From Guatemala we have as 
yet no tidings of it, nor, indeed, from any other part of Mexico, except the single 
specimen obtained by Galeotti in 1845, which is now in the collection of the University 
of Cambridge’, and one recently sent us by Mr. A. Forrer from the neighbourhood of 
Mazatlan. Just across the northern frontier of Mexico V. belli is not only common, 
but remains to breed, at least in Texas?; and it was observed by Mr. Henshaw in the 
Gila valley in September ®. Further north its head quarters in summer lie between the 
Missouri river (where Audubon first discovered it) and the base of the Rocky Moun- 
tains; and here it breeds. It will be seen that, the bird being scarce in Mexico, its 
Winter quarters are not yet satisfactorily determined. 
Mr. Dresser describes the nest as formed of fine grass, and hung from the twigs of a 
tree. ‘The eggs, he says, are white, with an occasional reddish dot at the larger end °. 
b". Subtus ere unicolor. 
al”, Rostrum robustum. 
16. Vireo ochraceus. (Tab. XII. fig. 1.) 
Vireo ochraceus, Saly. P. Z. S. 1863, p. 188'; Baird, Rev. Am. B. i. p. 3667; Lawr. Mem. Bost. 
Soc. N. H. ii. p. 272°. 
Vireo semiflavus, Salv. P. Z. S. 1863, p. 188+. 
Supra ochraceo-olivaceus, stria praoculari flavida; alis et cauda fusco-nigricantibus, illis albido marginatis et 
bifasciatis, hac dorsi colore limbata; subtus ochraceo-flavidus, gula pallidiore; rostri maxilla pallide 
cornea, mandibula albida. Long. tota 4:5, alee 2-2, caude 1:8, rostri a rictu 0-6, tarsi 0°8. (Deser. 
feminge ex San José de Guatemala. Mus. nostr.) 
Obs. Mas aut avis adultus corpore supra minus ochraceo et subtus flavescentiore differt. 
Hab. Mexico, Mazatlan (Grayson? *), Merida in Yucatan (Schott 2), Progreso in Yucatan 
(Gaumer); British Honpuras, Corosal (Roe); GuaTEMALA, Sakluk near Peten 
(O. 8.4), San José de Guatemala (0. S.1). 
When the specimens from San José de Guatemala and Sakluk were first examined 
they were supposed to belong to two distinct species, as they presented not only 
BIOL. CENTR.-AMER., Aves, Vol. L., february 1882. 26 
