ORDER MACROCHIRES. 205 



RANGE. Breeds in mountains of Canadian Zone from southern 

 British Columbia and southern Alberta to southern California and 

 northern New Mexico; winters in Mexico south to Guerrero; casual 

 in Wyoming and Colorado. 



GENUS CALOTHORAX GRAY. 



Calothorax GRAY, List Gen. Birds, 1840, 13. Type, by orig. desig., Cynan- 

 thus lucifer SWAINSON. 



Calothorax lucifer (SWAINSON). Lucifer Hummingbird. [437.] 



Cynanthus lucifer SWAINSON, Philos. Mag., N. S., I, 1827, 442. (Temas- 

 caltepec, Mexico.) 



RANGE. Southern Arizona and western Texas south to the City 

 of Mexico, Puebla, and Chiapas; winters in Mexico. 



GENUS AMIZILIS GRAY. 



Amizilis GRAY, List Gen. Birds, 1840, 14. Type, by subs, desig., Ortho- 

 rhynchus amazili LESSON (Gray, 1855). 



Amizilis tzacatl (DE LA LLAVE). Rieffer's Hummingbird. [438.] 



Trochilus tzacatl DE LA LLAVE, Registro Trimestre, II, 1833, 48. (Mex- 

 ico.) 



RANGE. Lower Rio Grande Valley in Texas south to Venezuela. 



Amizilis cerviniventris GOULD. 



RANGE. Eastern Mexico north to Corpus Christi, Texas. 



a. [Amizilis cerviniventris cerviniventris. Extralimital.] 



b. Amizilis cerviniventris chalcondta OBERHOLSER. Buff-bellied Humming- 



bird. [439.] 



Amazilia cerviniventris chalconota OBERHOLSER, Auk, XV, Jan., 1898, 32. 

 ("Beeville" = Brownsville, Texas.) 



RANGE. Lower Rio Grande Valley in Texas south to southern Tamaulipas. 



