BIRDS OF NORTH AND MIDDLE AMERICA. 513 



de Chiriquf, Panamd); iv, livr.3, 1878, 188; Suppl., pi. 31.— Boucard, Proe. 

 Zool. Soc. Lond., 1878, 71 (Volcan de Irazu; habits); The Hum. Bird, ii, 

 1892, 77 (Volcdn de Chiriquf); Gen. Hum. Bird, 1895, 235.— Elliot, Classif. 

 and Synop. Troch., 1879, 195.— Zeledon, Cat. Aves de Costa Rica, 1882, 

 21; Anal. Mus. Nac. Costa Rica, i, 1887, 122 (Faldas de Irazii).- Salvin, 

 Cat. Birds Brit. Mus., xvi, 1892, 159. — Salvin and Godman, Biol. Centr.- 

 Am., Aves, ii, 1892, 283 (La Candelaria, Volcdn de Irazii, Faldas de Irazii, 

 and La Palma de San Jos^, Costa Rica; Volcan de Chiriqui). — Salvadori 

 and Festa, Boll. Mus. Zool., etc., Torino, xiv, 1899, no. 339, 7 (Chiriqui, 

 Panama).— Bangs, Bull. New Engl. Zool. Club, iii, 1902, 29 (Boquete and 

 Volcdn de Chiriqui, 6,000-7,600 ft.); iv, 1908, 25 (descr. of melanistic or 

 abnormally colored specimen). — Ridgway, Condor, vii, 1905, 158, in text 

 (Volcan de Turrialba, Costa Rica, 9,000 ft.). — Carriker, Ann. Carnegie 

 Mus., vi, 1910, 532 (highlands of Costa Rica).— Ferry, Pub. 146, Field Mus. 

 N. H., orn. ser., i, no. 6, 1910, 263 (Volcan de Turrialba, Costa Rica; habits). 



[Panterpe] insignis Sclater and Salvin, Nom. Av. Neotr., 1873, 93. — Mulsant, 

 Ann. Soc. Linn. Lyon, xxii, 1876, 208.— Sharpe, Hand-list, ii, 1900, 114. 



Planter pe] insignis Hartert, Das Tierreich, Troch., 1900, 82 (monogr.). 



[Trochilus] insignis Gray, Hand-list, i, 1869, 138, no. 1768. 



Clytolxma insignis Mulsant and Verreaux, Classif. Troch., 1866, 59. 



Genus KLAIS Reichenbach. 



[Basilinna.\ /?. Klais Reichenbach, Aufz. der Colib., 1854, 13. (Type, Trochilus 



guimeli Bourcier and Mulsant.) 

 Clais (emendation) Sclater, Cat. Am. Birds, 1862, 304. 

 Gidmetia " Reich [enbach]" Bonaparte, Ann. Sci. Nat., s^-r. 4, i, 1854, 137. 



(Type, Trochilus guimeti Bourcier and Mulsant.) 



Small TrochilidfB (length about 75 mm.) with bill shorter than 

 head, straight, nasal operculi mostly exposed, tarsi feathered (except 

 l^ehind), 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 basall}^, where contracted into a distinct ridge; tomia smooth; 

 mandible with tke 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 cuJmen. 

 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 



