BIRDS OF NORTH AND MIDDLE AMERICA. 371 
the sides of chest glossed (more or less) with metallic green or bronze- 
green; under tail-coverts mostly dull white (grayish centrally) ; anal 
tufts and tuft on each side of rump white; a white or grayish white 
postocular spot, and below this a dusky area extending to beneath 
eye; maxilla dull black, sometimes brownish basally; mandible 
dusky for terminal half (more or less), brownish (reddish in life) 
basally; iris and feet as in adult male; length (skins), 85-104 (93); 
wing, 49.5-54 (51.6); tail, 27.5-33 (30.3); culmen, 19.5-23.5 (21.4).2 
Young male.—Similar to the adult female but feathers of pileum, 
hindneck, back, scapulars, rump, etc., tipped or terminally margined 
with pale buffy brown or grayish buff; rectrices as in adult male; 
chin and throat (in older specimens) intermixed with metallic bluish 
green or greenish blue feathers, these margined terminally with pale 
grayish or buffy brown. 
Young female.—Similar to the adult female but feathers of upper 
parts margined terminally or tipped with pale buffy brown (some- 
times more cinnamomeous on pileum and rump). 
Mexico in general, except extreme southern States of Oaxaca, 
Tabasco, Chiapas, Campeche, and Yucatan, north to southern Ari- 
zona (Santa Rita, Huachuca, Chiric4hua, and Santa Catalina moun- 
4 Nineteen specimens. 
Locality. fing. | teil. | oer 
iculmen. 
MALES. 
Six adult males from Arizona...........22. 2022022 eee eee eee eee eee eee eee algal 31.6 21.4 
Seven adult males from Nuevo Le6n, Tamaulipas, and San Luis Potos{........ 52.7 33.1 20.3 
Two adult males from Michoacdn.............2...022-022 22 cece eee eee eee eee eens 55 34.5 21.2 
Seven adult males from Sinaloa ( C. latirostris magicus)......-.-.----+--+-++--++- 49.9 31.1 19.3 
Four adult males from Colima (C. latirostris magicus)....--.--.-----+--++-0--05- 50.9 31.7 19.9 
One adult male from Guerrero (E] Lim6n) (C. latirostris magicus)..-......--.--- 50 31.5 19 
FEMALES. 
Six adult females from Arizona........... 2.2. e sees c ee eee eee eee eee cee ene eee 50.1 28.7 21.7 
Two adult females from Nuevo Le6n.........-2.2.0- 20sec eee cece eee eee eee 52 31.5 20.5 
One adult female from Hidalgo. ............2..2-. 220020 eee eee eee eee eee 54 33 21 
Five adult females from Jalisco (1) and Michoactin (4).......+-.-.---02--ee2e eee 52 30.5 21.3 
Three adult males from the extreme southeastern portion of the range of the species 
(Jaumave, Tamaulipas; Hacienda Angostura, San Luis Potosi, and Valley of Mexico) 
differ from all others in the collection in the decidedly greenish blue of the throat, 
which is colored nearly as in the adult male of C. lawrencei. Should other specimens 
from the same geographic area agree with these in this respect, a southeastern form 
would undoubtedly require recognition. Unfortunately no other specimens are 
available for examination. 
Specimens from the state of Sinaloa average considerably smaller than those from 
other localities, but those from Colima, Guerrero, and Arizona are nearly as small, and 
at present, in the light of material examined, I hardly feel justified in accepting a 
subspecies C.. J. magicus for the Sinaloa birds. It may be, however, that more satisfac- 
tory material will show that two, possibly three, forms can be satisfactorily defined. 
