BIBDS OI NORTH AND MIDDLE AMBKIOA. 147 



Tres Marias Islands (Island of Maria Madre), western Mexico. 



Vireo flavoviridis (not Vireosylvia flavomridis Caasin) Saltin and Godman, Biol. 



Centr.-Am., Aves, i, 1881, 189, part (Tres Marias). 

 Vireo forreri Madaeasz, TermiSszetrajzi Fiizetek, ix, pt. 1, 1885, 85, pi. 6 (Tres 



Marias I., w. Mexico; coll. Hungarian Nat. Mus.). 

 F[ireo] /orreri EiDGWAY, Man. N. Am. Birds, 1887, 590; 2d ed., 1896, 607. 

 Vireo flavoviridis forreri Nelson, N. Am. Fauna, no. 14, 1899, 54 (Tres Marias; 



crit.). 



VIREOSYLVA INSULANUS (Bangs). 

 SAN MIGUEL VHIEO. 



Similar to V. flavovirides flavoviridis^ but smaller; back, etc., duller 

 olive-green, and dusky lateral line of pileum and pale superciliary 

 stripe more distinct; about the size of V. cTwm agilis, or slightly smaller, 

 with pileum more brownish gray, back, etc., much duller olive-green, 

 superciliary stripe much less distinct, dusky postocular streak obsolete, 

 and sides much more extensively yellowish olive or olive-yellow. 



Adult ma^e.— Length (skins), 131-133 (132); wing, 74.5-78 (76.2); 

 tail, 53-56 (54.5); exposed culmen, 13-14 (13.5); tarsus, 16.5-18 (17.2); 

 middle toe, 11-12 (11.5). « 



Adult female.— Length, (skins), 119-125 (122); wing, 72-73 (72.6); 

 tail, 48.5-50 (49.2); exposed culmen, 13.5; tarsus, 17-17.6 (17.2); 

 middle toe, 10-11 (10. 5). « 



San Miguel Island, Gulf of Panama. 



Vireo chivi agilis (not Lanius agilis Lichtenstein) Bangs, Auk, xviii, Jan., 1901, 



30 (San Miguel I., Gulf of Panama). 

 Vireo insulanus Bangs, Proc. New Engl. Zool. Club, iii, Mar. 31, 1902, 73 (San 



Miguel I., Gulf of Panama; coll. E. A. and O. Bangs). 



VIREOSYLVA OLIVACEA (Linnaeus). 

 RED-EYED VIREO. 



Adults {sexes alike). — Pileum plain mouse gray, margined laterally 

 by a narrow line of black or dusky; rest of upper parts plain grayish 

 olive-green; a broad superciliary stripe of dull white or very pale 

 brownish gray; a dusky gray loral streak, becoming darker at anterior 

 angle of eye, and a less distinct postocular streak of dusky; auricular, 

 suborbital, and malar regions pale olive or pale brownish olive, pass- 

 ing into olive-greenish on sides of neck; under parts white, the^ sides 

 and flanks tinged, more or less strongly, with pale yellowish olive or 

 olive-yellow, the under tail-coverts more or less tinged with sulphur 

 yellow; axillars and under wing-coverts pale sulphur yellow; inner 

 webs of remiges edged with yellowish white; maxilla grayish dusky 

 or blackish; mandible pale grayish (pale grayish blue or bluish gray 



Two specimens, 



