BIEDS OF NOKTH AND MIDDLK AMERICA. 1 i^7 



iiioiT distinctl}- contrasted with the g-reonisli olixc of nun]) and upper 

 tail-coverts; size decided!}- greater. 



Vnung. — Very different from that of I'. //. liiittoui. witii upper 

 parts darker (deep burty olive), and with sides of head and under parts 

 strongly suffused with brownish bufi'. 



A<lnl1 ///^/Ze.— Length (skins), 110-128 (117.!>); wing, 63-70 (67.3); 

 tail, 1:1>-55(51.9); exposed cuhnen. 9.5-10 (0.7); tarsus, 18.5-20 (19.3); 

 middle toe, 10-11 (10.5)." 



Adult female.— \^^vig\h (skins), 110-117 (113.9); wing, 62-68 (65.4); 

 tail, 19-54.5 (51.2); exposed culmen, 9-11 (9.6); tarsus, 19-19.5 (19.1); 

 middle toe. 10-11 (10. 5). « 



]\Iore southern portions of Mexican plateau, in States of San Luis 

 Potosi (mountains near Jesus Mai'ia), Hidalgo (El Chico; Tulalcingo; 

 Real del Monte), Vera Cruz (Mount Orizaba; Las Vigas; Maltrato; 

 Perote), Puebla (Mount Orizaba), Oaxaca (Cosamaloapam: Cinco 

 Senores; La Parada; ^Nlount Zempoaltepec; Cerro San Felipe), Mexico 

 (Tlalpam), Morelos (Tetela del Volcan), and Michoacan (Patzcuaro); 

 breeding and resident throughout. Guatemala (Volcan de Fuego, 

 Hacienda Chancol, etc.), at least in winter. 



(?) Mreo Jiuiloni (not of Cassin) Baird, Eep. Pacific R. R. Surv., ix, 1858, 339, part 

 (Monterey, Nuevo Leon); Rep. U. S. and Mex. Bound. Surv., ii, pt. ii, 

 1859, 12 (do.); Cat. N. Am. Birds, 1859, no. 249, part; Review Am. Birds, 

 1866, 357, part (Monterey; La Parada, Oaxaca). 



^'ireo huitoni Sclater, Proc. Zool. Soc. Lond., 1858, 302 (Cinco Senores, Oaxaca); 

 1862, 19 (Cosamaloapam, Oaxaca); Cat. Am. Birds, 1862, 358 (La Parada, 

 Oaxaca). — Salvin, Ibis, 1874, 99 (Volcan de Fuego, Guatemala). — Baikd, 

 Brewer, and Ridgway, Hist. N. Am. Birds, i, 1874, .387, part. — Salvix and 

 GoDMAx, Biol. Centr.-Ain., Aves, i, 1881, 203, excl. syn. part (Mexican 

 and (Juatenialan references and localities).— Gadow, Cat. Birds ]'>rit. Mus., 

 viii, 18S3, oO;'), excl. syn. part. 



[T7r<?o] /(((//out ScL.vrER and Salvin, Nom. Av. Neotr., 1873, 12, ])art. 



[17reo] liiittonil CovK>i, Key N. Am. Birds, 1872, 123, part. 



V[ire()] JiuUoiu Cocks, Key X. Am. Birds, 2d ed., 1884, 3;'.4, part. — Ridgway, 

 Man. N. Am. Birds, 1887, 477, part. 



Vireosyh-ia Itnllou! Sumichrast, Mem. Boat. Soc. N. H., i, 1869, 548 (alpine reg. 

 Vera Cruz). 



]'lreo huttoni slephend (not <if Brewster) Chapman, Bull. .Vm. Mus. X. H., x, 

 1898, 40 (Las Vifras, Vera Cruz, breeding at 8,000 ft.) 



VIREO HUTTONI STEPHENSI Brewster. 

 STEPHENS' VIREO. 



Similar to K //. huttoni^ l)ut coloration nuich paler; wing averaging 

 longer, tarsus decidedly shorter. 



A'/nlts {se.refi alile). — Pileuin. hindiieck. t)acl<. and scapulars plain 

 dull olive-gray, passing into dull olive-green on riun\) and upper tail- 

 coverts; wings and tail dusky brownish gra}' with very pale olive- 



" Ten specimens. 



