134 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



[Gymnopithijs] bicolor Sharpe, Hand-list, iii, 1901, 30, part (Nicaragua). 



Pithys bicolor olivascens Ridgway, Proc. U. S. Nat. Mus., xiv, no. 868, Oct. 26, 

 1891, 469 (Santa Ana, Honduras; coll. U. S. Nat. Mus.). 



Gymnopithys olivascens Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1892, 222 

 (Santa Ana, Honduras; Chontales, Nicaragua; Angostura, La Balsa, Navarro 

 de Cartago, and San Carlos, Costa Rica; Volcan de Chiriquf and Bugaba, Pan- 

 amd). — Richmond, Proc. U. S. Nat. Mus., xvi, 1893, 501 (Rio Escondido, 

 Nicaragua).— Cherrie, Expl. Zool. Merid. Costa Rica, 1893, 42 (Boruca, 

 Costa Rica; crit.). 



[Oymnopithys] olivascens Sharpe, Hand-list, iii, 1901, 30 (Honduras). 



Gymnopithys bicolor olivascens Bangs, Proc. New Engl. Zool. Club, iii, Jan. 30, 

 1902, 42 (Boquete, Panamd, 4,000-6,000 ft.). — Cairriker, Ann. Carnegie Mua., 

 vi, 1910, 614 (Costa Rica; crit.; habits). 



Gymnopithys bicolor olivaceus Bangs, Auk, xviii, Oct., 1891, 366 (Divala, Pan- 

 amd); xxiv, 1907, 296 (Boruca and Pozo del Rio Grande, k. w. Costa Rica). 



Genus PHyENOSTlCTUS Ridgway. 



Phsenostictus « Ridgway, Proc. Biol. Soc. Wash., xxii, Apr. 17, 1909, 70. (Type, 

 Phlogopsis mcleannani Lawrence.) 



Medium-sized or rather large Formicariidse (length about 190 mm.) 

 with bill stout and about as long as head, tail nearly as long as wing, 

 tarsal scutella fused, sides of head naked, and with back and under 

 parts conspicuously spotted with black. 



Bill about as long as head, rather stout, moderately compressed 

 terminally, its width at latero-frontal antise decidedly less than its 

 depth at same point; culmen distinctly (almost sharply) ridged, 

 nearly straight for most of its length or very slightly convex sub- 

 basally, decurved terminally, the tip of maxilla moderately uncinate; 

 maxillary tomium nearly straight, slightly notched subterminally; 

 mandibular tomium straight, minutely notched subterminally; 

 gonys decidedly convex and promment basally, famtly convex and 

 ascending' terminally. Nostril exposed, posteriorly in contact with 

 thin feathering of latero-frontal antise, broadly oval, margined above 

 by a rather broad extension of the membraneous integument of the 

 nasal fossae, an internal tubercle showing distinctly within posterior 

 portion. Rictal bristles absent, but feathers of loral region with 

 stiffened, bristle-like shafts. Wmg moderate or rather large, with 

 longest primaries extending considerably beyond secondaries; sixth, 

 or fifth, sixth and seventh, primaries longest, the tenth (outermost) 

 nearly two-thirds as long as the longest, the ninth about as long as 

 secondaries. Tail of 12 rec trices, nearly as long as wing, graduated 

 (graduation equal to length of tarsus or for about two-fifths its length), 

 the rectrices rather narrow, rounded terminally. Tarsus a little more 

 than one-third as long as wing, stout, booted (nonscutellate) ; middle 

 toe, with claw, decidedly shorter than tarsus; outer toe, without 

 claw, reaching to about middle of subterminal phalanx of middle 



a (Pa/vai, I display, exhibit; araizdc, marked, spotted. 



