516 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
Mellisuga merrettti Lawrence, Ann. Lyc. Nat. Hist. N. Y., vii, April, 1860, 110 
(District of El Miner4l, 15 miles west of District of Belén, Verégua, Panamé; 
coll. Dr. J. K. Merritt; =adult female).—Govu p, Ibis, 1860, 309. 
Clais merretti Satvin, Ibis, 1870, 209 (Castillo, Calovévora, Chitra, Laguna de 
Castillo, Bugaba, and Volc4n de Chiriquf, Panamé,; crit.). 
Klais merritti Boucarp, The Hum. Bird, ii, 1892, 74 (Verégua); Gen. Hum. Birds, 
1895, 50 (‘‘Guatemala’’; Costa Rica; Panama). 
[Klais guimeti] var. merritti Mutsant, Ann. Soc. Linn. Lyon, n.s., xxii, 1876, 221. 
Klais guimeti merritti BERLEPSCH and StotzMaNnn, Proc. Zool. Soc. Lond., 1902, 
29 (Borgofia, centr. Peru); Ornis, 1906, 120 (Huaynapata, Cuzco, centr. 
Peru). 
Genus ABEILLIA Bonaparte. 
Abeillia Bonaparte, Consp. Av., i, 1849, 79. (Type, A. typica BonaPpaRTE 
=Ornismya abeillei Delattre and Lesson.) 
[Basilinna.] 7. Baucis Retcumnsacn, Aufz. der Colibr., 1854, 13. (Type, Ornis- 
mya abetllei Delattre and Lesson.) 
Myiabeillia Bonararte, Rev. et Mag. de Zool., vi, May, 1854, 258. (Type, Ornis- 
mya abeillei Delattre and Lesson.) 
Small Trochilide (length about 68-75 mm.) very closely related to 
Klais, but with tail relatively longer (three-fifths to nearly two- 
thirds as long as wing), more distinctly emarginate or double-rounded 
in adult male, the latter with pileum metallic green (concolor with 
back, etc.) the chin and upper throat bright metallic emerald green. 
Bill shorter than head, straight, terete; culmen rounded except 
basally, where contracted into a rather distinct ridge; tomia smooth; 
mandible with the usual lateral median groove. Nasal operculum 
moderately broad, strongly convex, only the inner portion hidden by 
the decumbent frontal feathering, which extends anteriorly nearly to 
anterior end of nostril, forming a single broad, rounded, frontal 
antia. Tarsus feathered, except on posterior side; anterior toes about 
equal in length, but the outer apparently appreciably shorter. Wing 
about four times as long as exposed culmen, the outermost primary 
longest, normal in shape. Tail of adult male nearly two-thirds as 
long as wing, deeply emarginate, with lateral rectrices slightly shorter 
than the next, that of adult female moderately rounded, with middle 
rectrices slightly shorter than the next, the rectrices (in both sexes) 
broadly rounded terminally. 
Coloration.—Above metallic bronze-green, including middle rec- 
trices and basal portion of other rectrices, which are blackish subter- 
minally and grayish terminally; a small white postocular spot. 
Adult male with chin and upper throat bright metallic emerald green, 
the remaining under parts olive-grayish strongly glossed with bronze- 
green (more dusky on lower throat); adult female with under parts 
pale gray, the outer rectrices more abruptly tipped with gray. 
Range.—Southern Mexico to Guatemala. (Monotypic.) 
