ORDER MACROCHIRES. 205 
RaNnGE.— 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. 
Calothérax licifer (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 tz4catl (De La Luave). Rieffer’s Hummingbird. [438.] 
Trochilus tzacatl Dk LA Luave, Registro Trimestre, II, 1833, 48. (Mex- 
ico.) ; 
RanGr.— Lower Rio Grande Valley in Texas south to Venezuela. 
Amizilis cervinivéntris GOULD. 
RanGeE.— Eastern Mexico north to Corpus Christi, Texas. 
a. [Amizilis cerviniventris cerviniventris. Extralimital.] 
b. Amizilis cerviniventris chalconéta OprrHoLsER. 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. 
