VIEEO. 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. Vail. i. p. 526'; Salv. Cat. Strickl. Coll. p. 113'. 



Supra olivaceus, pileo cineraseente, oculis albo conspiciUatis ; alis et cauda nigricanfcibus, iUis sordide albo 

 limbatis et indistincte bifasciatis, hac dorsi colore marginata ; subtus albus, bypocbondriis ochraceo 

 indutis ; rostro et pedibus plumbeis. Long, tota 4-6, alse 2-2, caudae 1-9, rostri a rictu 0-65, tarsi 0-8. 

 (Deser. exempl. ex Mazatlan, Mexico. Mus. nostr.) 



Obs. V. novehoracensi similis, sed inter alia oculis albo nee flayo conspiciUatis distinguendus. 



Hah. NoBTH America, Missouri river to the base of the Eocky Mountains ^ Arizona ^, 

 Texas 3. — Mexico {OaleottV), Mazatlan (Forrer), 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 Eocky 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 fere unicolor. 

 a'". Bostrum robustum. 



16. Vireo ochraceus. (Tab. XII. fig. 1.) 



Vireo ochraceus, Salv. P. Z. S. 1863, p. 188'; Baird, Rev. Am. B. i. p. 366'; Lawr. Mem. Bost. 



Soc. N. H. ii. p. 272 '. 

 Vireo semiflavus, Salv. P. Z. S. 1863, p. 188*. 



Supra ocbraceo-olivaceus, stria prseoculari flavida ; alis et cauda fusco-nigricantibus, illis albido marginatis et 

 bifasciatis, bac dorsi colore limbata ; subtus ocbraceo-flavidus, giila paUidiore ; rostri maxilla pallide 

 cornea, mandibula albida. Long, tota 4-5, alee 2-2, caudse 1-8, rostri a rictu 0-6, tarsi 0-8. (Descr. 

 feminse ex San Jos^ de Guatemala. Mus. nostr.) 



Ols. Mas aut avis adultus oorpore supra minus ochraceo et subtus flavesoentiore diflfert. 



Hab. Mexico, Mazatlan ( Orayson ^ ^), Merida in Yucatan {Schott % Progreso in Yucatan 

 (Gaumer); British Honduras, Corosal (Boe); Guatemala, Sakluk near Peten 

 (0. S.^), San Jose de Guatemala {0. S.'^). 



When the specimens from San Jose de Guatemala and Sakluk were first examined 

 they were supposed to belong to two distinct species, as they presented not only 

 BIOL, centk.-amer.j Avea, Vol. I., February 1882. 26 



