SELASPHORUS. 355 



which it differs not only in the colour of the thorax, but also in that of the tail, the inner 

 web of ihe outer rectrices being wholly purple-black instead of nearly whoUy rufous. 



All the specimens of this species that we have seen were sent us by our coUector 

 Arce from the Volcan de Chiriqui. It has also been found by several collectors on the 

 Volcan de Irazu in Costa Rica ^ * 5_ 



5. Selasphorus platycercus. 



TrocMlus platycercus, Sw. Phil. Mag. uew ser. i. p. 441'. 



Selasphorus platycercus, Gould, Mon. Troch. iii. t. 140 (May 1852)"; Scl. & Salv. Ibis, 1859, 



p. 129 ^ Salv. Ibis, 1860, p. 196 ^ Cat. Strickl. Coll. p. 364 = ; 'cat. Birds Brit. Mus. xvi! 



p. 396" ; Scl. P. Z. S. 1864, p. 177'; Baird, Brew., and Eidgw. N. Am. Birds, ii. p. 462 %- 



de Oca, La Nat. iii. p. 204, t. — ^; Sumichrast, La Nat. v. p. 250'°; Boucard, Ann. Soc. 



Linn. Lyon, sxii. p. 19 " ; Herrera, La Nat. (2) i. p. 322 ". 

 Selasforus platycercus, Duges, La Nat. i. p. 141'=; Villada, La Nat. ii. p. 352". 

 Omismya tricolor. Less. Suppl. Ois.-Mouches, p. 125, t. 14 ". 

 TrocMlus montanus. Less. Ind. gen. Troch. p. xxxiv '"; Sw. Birds Brazil & Mex. t. 74 '^ 



Sapra nitenti-oUvaceo-Tiridis : subtus gula micanti-rosaceo-rubra, pectore albo, abdomine medio et tectiicibus 

 subcaudalibus albidis, hypochondriis viridi lavatis ; eaudae rectricibus mediis dorso fere concoloribus, reHquis 

 purpureo-nigris, sublafceralibus ad basin einnamomeo limbatis : rostro nigro. Long, tota circa 3-3, ate 1-95, 

 eaudae 1-3, rostri a rictu 0-8. 



? supra magis aurescens : subtus pallide cervina, gula et pectore albicantioribus, hypochondriis et tectricibus 

 subcaudalibus magis cinnamomeis, gula maculis discalibus fuscis notata ; caudse rectricibus lateraUbus ad 

 basin cinnamomeis, medialiter nigricantibus, apicibus albis. (Descr. maris et feminse ex Ajusco, Valley of 

 Mexico. Mus. nostr.) 



Hah. North America, Utah, New Mexico, Colorado, and Arizona. — Mexico {Bulloch \ 

 Mann% Micoba in Sonora {W. Lloyd% Sierra de Valparaiso, Sierra de Calvillo, 

 Sierra de Bolanos, Volcan and Sierra Nevada de Colima, Real del Monte, Tenango 

 del Valle, Ajusco {W. B. Bichardson^), Hacienda Eslava in the Valley of Mexico 

 {F. Ferrari-Perez^), Patzcuaro (Duges ^% Rio Frio Ixtaccihuatl {W.B.B.% Pinal 

 Puebla(-F. B. G.% Puebla (^0MC<7r<Z ii), Ton?igmai [M.Trujillo^ Valley of Mexico 

 {de Oca ^, White '^, Sumichrast ^^, Herrera i^), Mirador {Sartorius, in U. S. Nat. 

 Mus.), Alpine region of Orizaba {Sumichrast ^°) ; Guatemala (SMnner^), Quezal- 

 tenango {0. S. & F. B. G.^, W. B. Richardson^), Chuipache and San Martin in 

 Quezaltenango, Rincon in San Marcos {W. B. B.% Mountains above Totonicapam, 

 Paramos {0. S. *). 



This species was first described by Swainson in his paper on Bullock's Mexican 

 collection ^, and subsequently figured by the same author in his ' Birds of Brazil and 

 Mexico ' 1^, when he suppressed his original name in favour of Lesson's TrocMlus 

 montanus, which had been bestowed on a bird supposed to have come from Brazil ^^ 

 From Mexico it has been traced northwards across the frontier as far as Utah, and it 

 appears to be found, at least in the summer months, in all the South-western States of 

 America from May to August. 



45* 



