BIRDS OF NORTH AND MIDDLE AMERICA. 513 
de Chiriqui, Panam4); iv, livr.3, 1878, 188; Suppl., pl. 31.—Bovcarp, Proc. 
Zool. Soc. Lond., 1878, 71 (Volcén de Irazi; habits); The Hum. Bird, ii, 
1892, 77 (Volcén de Chiriqui); Gen. Hum. Bird, 1895, 235.—Euurot, Classif. 
and Synop. Troch., 1879, 195.—Zetepén, Cat. Aves de Costa Rica, 1882, 
21; Anal. Mus. Nac. Costa Rica, i, 1887, 122 (Faldas de Irazti).—Satvin, 
Cat. Birds Brit. Mus., xvi, 1892, 159—Satvin and Gopman, Biol. Centr.- 
Am., Aves, ii, 1892, 283 (La Candelaria, Volc4n de Irazd, Faldas de Irazt, 
and La Palma de San José, Costa Rica; Volcén de Chiriqu{).—SanvapoR1 
and Fzsta, Boll. Mus. Zool., etc., Torino, xiv, 1899, no. 339, 7 (Chiriquf, 
Panam4).—Banes, Bull. New Engl. Zool. Club, iii, 1902, 29 (Boquete and 
Volc4n de Chiriquf, 6,000-7,600 ft.); iv, 1908, 25 (descr. of melanistic or 
abnormally colored specimen).—Ripaway, Condor, vii, 1905, 158, in text 
(Voleén de Turrialba, Costa Rica, 9,000 ft.)—Carrixer, Ann. Carnegie 
Mus., vi, 1910, 532 (highlands of Costa Rica).—Frrry, Pub. 146, Field Mus. 
N. H., orn. ser., i, no. 6, 1910, 263 (Volc4n de Turrialba, Costa Rica; habits). 
[Panter pe] insignis SctateR and Savin, Nom. Av. Neotr., 1873, 93.—MuLsAnT, 
Ann. Soc. Linn. Lyon, xxii, 1876, 208—Ssarrr, Hand-list, ii, 1900, 114. 
Planterpe] insignis Harrert, Das Tierreich, Troch., 1900, 82 (monogr.). 
[Trochilus] insignis Gray, Hand-list, i, 1869, 138, no. 1768. 
Clytolema insignis MuLSANT and VERREAUX, Classif. Troch., 1866, 59. 
Genus KLAIS Reichenbach. 
[Basilinna.] 8. Klais Retcuensacu, Aufz. der Colib., 1854, 13. (Type, Trochilus 
guimeti Bourcier and Mulsant.) 
Clais (emendation) ScLaTER, Cat. Am. Birds, 1862, 304. 
Guimetia ‘‘Reich[enbach]” Bonaparts, Ann. Sci. Nat., sér. 4, i, 1854, 137. 
(Type, Trochilus guimett Bourcier and Mulsant.) 
Small Trochilide (length about 75 mm.) with bill shorter than 
head, straight, nasal operculi mostly exposed, tarsi feathered (except 
behind), tail a little more than half to nearly three-fifths as long as 
wing, truncate or slightly emarginate in adult male, double-rounded 
in female, the rectrices broadly rounded terminally (in both sexes), 
the coloration mostly grayish beneath; adult male with pileum, chin, 
and throat metallic violet-blue and tail greenish passing into black 
terminally; adult female paler gray beneath (including chin and 
throat), pileum greenish blue, the lateral rectrices tipped with pale 
gray. 
Bill shorter than head, straight, slender, terete; culmen rounded 
except basally, where contracted into a distinct ridge; tomia smooth; 
mandible with the usual lateral median groove. Nasal operculum 
rather narrow, only the upper posterior portion concealed by frontal 
feathering, the latter extending scarcely as far forward as anterior 
end of nostril, forming a short point or antia on each side of culmen. 
Tarsus feathered, except on posterior side; anterior toes about equal 
in length, or the lateral ones just appreciably shorter than the middle 
one. Wing nearly to quite four times as long as exposed culmen, the 
outermost primary longest, normal in shape. Tail of adult male 
about three-fifths as long as wing, truncate or faintly emarginate, that 
of female a little more than half as long as wing, rounded, with middle 
rectrices shorter than next pair, the rectrices broadly rounded at tip 
in both sexes. 
81255°—Bull. 50—11——33 
