730 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Setuphaga pk'Ut (not of Swainson) Sclater and Salvix. Proc. Zool. Soc. Lond., 

 1859, 12 (Guatemala). — Taylor, Ibis, 1860, 110 (Coniayagua, Honduras). — 

 Sclater, Cat. Am. Birds, 1862, 36 (Guatemala). — Eaird, Review Am. Birds, 

 1865, 256, part (Volcan de Fuego, Guatemala).— Baird, Brewer, and Ridg- 

 WAY, Hist. N. Am. Birds, i, 1874, .322, part (Guatemala). — Lawrence, Bull. 

 U. S. Nat. Mus. no. 4, 1876, 16 (Gineta Mts., Chiapas).— Salvin and God- 

 man, Biol. Centr.-ilm., Aves, i, 1881, 179, part (Volcan de Fuego, ridge near 

 Chancol, San Geronimo, Santa Barbara, Chilasco, and Tactic, Guatemala; 

 Comayagua, Honduras). 



[SetnphiKja^ picta Sclater and Salvin, Nom. Av. Neotr., 1873, 10, part. 



\_Setopha(f(t picta.] Subsp. a. Setophaga guatemahr Sharpe, Cat. Birds Brit. Mus., 

 X, 1885, 417 (Guatemala, no type locality indicated; coll. Brit. Mus. ) 



S\_etophuga] picta guateiiialu' Ridgway, Man. N. Am. Birds, 1887, 530. 



Setophaga picta guatemalx Nelson, Auk, xv, 1898, 159 (interior of Chiapas). 



Genus MYIOBORUS Baird. 



Myioborus Baird, Review Am. Birds, April, 1865, 237, 257. (Type, Setophaga 

 rerticalis Swainson. ) 



Similar to Setophaga, but bill more depressed, rictal bristles much 

 longer (equal to or longer than bill); wing shorter and much more 

 rounded (nintii primary shorter than fourth, sometimes shorter than 

 third); tarsus longer (very much more than one-fourth to more than 

 one -third as long as wing), and style of coloration very different 

 (crown with a patch of chestnut, or else forehead yellow and under 

 parts yellow; no white, orange, nor yellow on wing; back, etc., slate- 

 gray or slate color, rarely olive or brownish). 



Bill about half as long as head, or less, very much depressed, trian- 

 gular or broadly wedge-shaped in vertical profile; culmen sharpl}^ 

 ridged, straight to near tip, where strongly decurved; commissure 

 straight with subterminal notch of maxillary tomium minute but 

 distinct. Nostril longitudinally elliptical, in lower anter.or portion of 

 nasal fossae, overhung by a broad membranous operculum, partly 

 covered by latero-frontal feathers. Rictal bristles greatly developed, 

 reaching nearly to, sometimes beyond, tip of bill when directed for- 

 ward. Wing moderate, much rounded (ninth primary shorter than 

 fourth, sometimes not longer than second, the eighth shorter than fifth); 

 wing-tip decidedly shorter than commissure, but little more than half 

 as long as tarsus. Tail about as long as wing or slightly shorter, nmch 

 rounded, the rectrices usually subacuminate at tips. Tarsus nuu-h 

 more than one-fourth as long as wing (sometimes more than one third 

 as long), the scutella indistinct; middle toe, with claw, much shorter 

 than tarsus; Imsal phalanx of middle toe united for much mori^ than 

 half its length to outer toe, for about half its length to inner toe. 



Colmrttum. — Under parts yellow or orange (orange-red or vermilion 

 in one species), the throat sometimes blackish; upper parts usually 

 .slate color or slate-gray, rarely olivi^ or brownish, the crown usually 

 with a patch of chestnut or cimiumon-rufous, or else the forehead yel- 



