350 TEOCHILID^. 



k". Cauda hrevior sed plus minusve irregulariter constructa, rectridbus mediis 



haud abnormaliter brevibus. 



i"'. Bostrum elmgatum, decurvum ; plumce gulares laterales elongat<x. 



CALOTHOKAX. 



Calothorax, Gray, List Gen. B. p. 13 (1840) ; Salv. Cat. Birds Brit. Mus. xvi. p. 390. 



In this and the following genera the tail is not deeply forked as in Boricha, but is 

 more or less irregularly formed, some of the rectrices being peculiar either for their 

 attenuated width or for their comparative length. The central rectrices are, however, 

 not abnormally short, as is the case in ChcBtocercus and other allied South-American 

 forms, 



Calothorax differs from Selasphorus and its allies in having a longer more arched 

 biU. 



Two allied species are included in Calothorax — one of them ranging over North- 

 western Central Mexico to Puebla and Orizaba ; the other occurring in the State of 

 Oaxaca. 



1. Calothorax lucifer. 



Cynanthus lucifer, Sw. Phil. Mag. new ser. i. p. 442 \ 



Calothorax lucifer, Gray, Gen. Birds, i. p. 110 ^ ; Cab. & Heine, Mus. Hein. iii. p. 55 ^ ; Scl. P. Z. S. 



1856, p. 288* j 1864, p. 177'; Salv. Cat. Strickl. Coll. p. 364°; Cat. Birds Brit. Mus. xvi. 



p. 390' ; Sumichrast, La Nat. v. p. 250' 

 Trochilus lucifer, Finsch, Abh. nat. Ver. zu Bremen, 1870, p. 324 ° ; Herrera, La Nat. (2) i. 



p. 322 ". 

 Omismya cyanopogon, Less. Hist. Nat. Ois.-Mouches, pp. xvi, xlvi, 50, t. 5 " ; Suppl. pp. 117, 



119, tt. 9, 10 '^ 

 TVochihs cyanopogon, Sw. Birds Brazil & Mex. t. 77 ". 

 Calothorax cyanopogon, Gould, Mon. Troch. iii. 1. 143 (Sept. 1857) " ; Villada, La Nat. ii. p. 357 " ; 



de Oca, La Nat. iii. p. 104 " ; Boucard, Ann. Soc. Linn. Lyon, xxii. p. 21 ". 

 Trochilus simplex, Less. Hist. Nat. Col. p. 86, t. 23 ". 

 Trochilus corruscus, Licht. Preis-Verz. Mex. Vog. p. 1 (c/. J. £. Orn. 1863, p. 55) ". 



Supra nitenti-aureo-viridis, capite summo obscuriore, uropygio magis aurescente : subtus gula micanti-lilaoeo- 

 rubra, pectore, abdomine medio et tectricibus subcaudalibus albis, hypoohondriis paEide fulvis viridi 

 lavatis ; caudse rectricibus quatuor mediis dorso concoloribus, reliquis purpureo-nigris, lateribus albo ter- 

 minatis, extima angusta acuta : rostro nigro. Long, tota circa 3-5, alse 1*5, caudse rectr. med. 0-6, rectr. 

 longissimi 1-2, rostri a rictu 1-0. 



? supra maris similis, subtus pallide rufescens, abdomine medio albicantiore, plaga infra oculos fusca ; rectrici- 

 bus lateralibus ad basin fulvis, apicibus albis fascia lata subterminali nigra. (Descr. maris et feminffi ex 

 Ajuseo, Valley of Mexico. Mus. nostr.) 



Hab. Mexico 3 6 (j^_ Mann% Sierra Madre of Sinaloa {Grayson, fide Finsch % Sierra 

 de San Luis Potosi, Bolanos and Lake Chapala in Jalisco, Ajuseo in the Valley 

 of Mexico {W. B. Bichardson''), Temiscaltepec (Bullock^), VaUey of Mexico 



