436 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
KEY TO THE SPECIES AND SUBSPECIES OF SAUCEROTTIA. 
a. Remiges wholly blackish. 
b. Abdomen not white. 
c. Tail blue-black or dark steel blue. 
d. Pileum dark metallic blue. (Colombia.) 
Saucerottia cyanifrons (extralimital).¢ 
dd. Pileum metallic green or green and bronze (more or less bright). 
e. Under tail-coverts dark metallic blue, or dusky grayish glossed with blue, 
margined with pale grayish. 
f. Smaller (wing 50-56.5, tail 29-32.5, culmen 18-20.5); bill straighter; 
green of upper parts less bluish. (Saucerottia sophiz.) 
g. Rump more bronzy, passing into coppery or purplish bronze pos- 
teriorly. (Costa Rica and Nicaragua.) 
Saucerottia sophiz sophie (p. 439). 
gg. Rump wholly green. 
h. Under tail-coverts dusky grayish glossed with blue. (North- 
western Colombia.) 
Saucerottia sophie saucerrottei (extralimital). 
hh. Under tail-coverts dark steel blue centrally. 
i. Coloration darker green (both above and below); wing averaging 
shorter. (Eastern Colombia.) 
Saucerottia sophiz warscewiczi (extralimital).¢ 
« T[rochilus] cyanifrons Bourcier, Rev. Zool., vi, April, 1843, 100 (Ybagué, Colom- 
bia); Bourcier and Mulsant, Ann. Sci. Phys. et Nat. d’Agric., etc., Lyon, vi, 1848, 
42.—[ Thalurania] cyanifrons Bonaparte, Consp. Av., i, 1850, 77.[Chlorestes, 7. Sauce- 
rottia] cyanifrons Reichenbach, Aufz. der Colibr., 1854, 8.—Saucerottia cyanifrons 
Bonaparte, Rev. et Mag. de Zool., 1854, 255; Gould, Mon. Troch., v, 1866, pl. 323.— 
S[aucerottea] cyanifrons Hartert, Das Tierreich, Troch., 1900, 52 (monogr.).—Chlo- 
restes cyanifrons Reichenbach, Troch. Enum., 1855, 4, pl. 701, figs. 4571, 4572.— 
H{emithylaca] cyanifrons Cabanis and Heine, Mus. Hein., iii, 1860, 39 (‘‘ Veragua”’).— 
Eratopis cyanifrons Heine, Journ. fiir Orn., 1863, 191, in text.—Ariana cyanifrons 
Mulsant and Verreaux, Classif. Troch., 1866, 36; Hist. Nat. Ois.-Mouch., i, 1874, 
332; iv, 1877, 185.—[Polytmus] cyanifrons Gray, Hand-list, i, 1869, 131, no. 1669.— 
Amazilia cyanifrons Elliot, Classif. and Synop. Troch., 1879, 225; Salvin, Cat. Birds 
Brit. Mus., xvi, 1892, 227.—Pyrrhophaena cyaneifrons Berlepsch, Journ. fiir Orn., 
1887, 332. 
b T[rochilus] saucerrottet Delattre and Bourcier, Rev. Zool., ix, Sept. (=Nov.), 
1846, 311 (Cali, n. w. Colombia; coll. Delattre).—H[emithylaca] saucerottet Cabanis 
and Heine, Mus. Hein., iii, 1860, 38, footnote.— Ariana saucerottet Mulsant and Ver- 
reaux, Classif. Troch., 1866, 36; Hist. Nat. Ois.-Mouch., i, 1874, index; iv, 1877, 185.— 
Amazilia saucerottit Elliot, Classif. and Synop. Troch., 1879, 225; Salvin, Cat. Birds 
Brit. Mus., xvi, 1892, 223.—Saucerottia saucerottii Eudes-Deslongchamps, Ann. Mus. 
Caen, i, 1880, 424.—Pyrrhophaena saucerottet Berlepsch, Journ. fiir Orn., 1887, 332.— 
Saucerottia typica Bonaparte, Consp. Av., i, 1850, 77; Gould, Introd. Troch., 1861, 
162.—Chlorestes typica Reichenbach, Troch. Enum., 1855, 4, pl. 701, figs. 4569, 
4570.—Erythronota typica Gould, Mon. Troch., v, 1861, pl. 321.—Erythronota sauce- 
rottei Mulsant and Verreaux, Hist. Nat. Ois.-Mouch., i, 1874, 331. 
¢ H[emithylaca] warscewicet Cabanis and Heine, Mus. Hein., iii, March, 1860, 38 
(‘‘Veragua;” coll. Heine Mus.).—Saucerottia warszewiczt Gould, Introd. Troch., 1861, 
163.— Ariana warszwicet Mulsant and Verreaux, Hist. Nat. Ois.-Mouch., i, 1874, 327; 
iv, 1877, 185._[Polytmus] warsewiczi Gray, Hand-list, i, 1869, 181, no. 1671.—Ama- 
zilia warszewiczt Elliot, Classif. and Synop. Troch., 1879, 225.—Amazilia warszewiezt 
Salvin, Cat. Birds Brit. Mus., xvi, 1892, 222, part.— Amizilis warszewiezi Oberholser, 
Proc. Ac. Nat. Sci. Phila., 1899, 208.—S[aucerottea] warscewicet (typica) Hartert, Das 
Tierreich, Troch., 1900, 52. 
