BIRDS OF NORTH AND MIDDLE AMP:RICA. 753 



Adnlt ma/6'.— Length (skins), 119-128 (123.3); wing, 57-65 (61.7); 

 tail, 50-57 (54); exposed culuien, 11; tarsus, 21-23 (22).^ 



Adult female.— \jQ\\gi\\ (skins), 11-4-126 (122.2); wing, 59-64 (61.5); 

 tail, 52-56 (54.2); exposed culmen, 11; tarsus, 22.^ 



Highlands of Costa Rica (Cervantes; Birris), Chiriqui (Volcan de 

 Chiriqui: Boquete), and Veragua (Cordillera del Chucu). 



BasUeuterus mdanotis Lawrence, Ann. Lye. Nat. Hist. N. Y., ix, Apr., 1868, 95 

 (Cervantes, Costa Rica; coll. U. S. Nat. Mus.).— Salvin, Ibis, 1869, 313 (Costa 

 Rica). — Frantzius, Journ. fiir Orn., 1869, 183 (Costa Rica). — Sharpe, Cat. 

 Birds Brit. Mus., x, 1885, 386 (Costa Rica; Cordillera del Chucu, Veragua). — 

 Bangs, Proc. New Engl. Zool. Club, iii, 1902, 60 (Volcan de Chiriqui and 

 Boquete, Chiriqui, 4,000 to 7,500 ft.). 



Basileuterm bivlUatus mekmotis Zeledon, Anal. Mus. Nac. Costa Rica, i, 1887, 107 

 (Costa Rica). 



Basileuterus birittatus (not Muscicapa hiv'dlata Lafresnaye and D'Orbigny) Salvin, 

 Ibis, 1870, 108, part (Cordillera del Chucu, Veragua); Proc. Zool. See. 

 Lond., 1870, 183 (do.). — Salvin and Godman, Biol. Centr.-Am., Aves, i, 

 1881, 170, part (Cervantes and Birris, Costa Rica; Cordillera del Chucu, 

 Veragua). 



[^Basileuterus] hhnUatus Sclater and Salvin, Nom. Av. Neotr., 1873, 10, part 

 (Veragua; Costa Rica). 



BASILEUTERUS CULICIVORUS CULICIVORUS ( Lichtenstein). 

 LICHTENSTEIN'S WARBLER. 



Adults {sexes alike). — Pileura with two broad lateral stripes of black,^ 

 inclosing a median one of pale yellowish olive, the middle portion of 

 which is usually yellow, rarely orange-tawny or rufous, the feathers 

 with light yellowish olive tips; rest of upper parts plain deep olive- 

 gray (olivaceous mouse gray), the primaries edged with paler and 

 clearer gray; a broad superciliary stripe of yellowish olive; eyelids 

 dull light yellowish; a dusky spot (more or less distinct) in front of 

 eye, and postocular region usually more or less dusky; auricular 

 region gra3"ish olive, sometimes darker along upper margin, the lower 

 portion usuall}^ finely streaked with dull whitish or palo j^ellowish; 

 malar region and entire under parts lemon or gamboge yellow, passing 

 into light yellowish olive-green on sides and flanks, the chest usually 

 faintly tinged with the same; maxilla dark brown, mandible paler; 

 legs and feet very pale yellowish brown or buffy (in dried skins). 



Adult male.— luen^th (skins), 110-125 (122); wing, 58-64 (60); tail, 

 50-57 (51.8); exposed culmen, 9-11 (9.2); tarsus, 18-20.5 (19.2).* 



' Six specimens, from Chiriqui. 

 ■^ Four specimens, from Chiriqui. 



■^ These black stripes becoming narrower and less di.stinct, sometimes obsolete, on 

 forehead. 

 * Sixteen specimens. 



3654— VOL 2—01 48 



