92 TROGLODYTIDA. 
hitherto stood. An examination of a number of specimens of both forms shows that 
the under plumage of the present bird is of a nearly uniform rusty red, instead of 
having the middle of the belly white, as is universally the case in Venezuelan examples 
of the older form. In Colombia a third race is found; a single skin of Bogota make 
having a very restricted red patch on the throat, and the rest of the under plumage, 
including the flanks, russet-grey. This bird we propose to call Thryothorus hypospodius*. 
Thus restricted, 7. hyperythrus appears to be confined in its range to the Colombian 
State of Panama, whence we have received many specimens. 
4. Thryothorus maculipectus. 
Thryothorus maculipectus, Lafr. Rev. Zool. 1845, p. 3387; Scl. P. Z. 8. 1856, p. 290°, 1859, 
pp. 863°, 372°; Scl. & Salv. Ibis, 1860, p. 30°; P.Z.S. 1870, p. 836°; Lawr. Bull. U.S. 
Nat. Mus. no. 4, p. 18”. 
Pheugopedius maculipectus, Baird, Rev. Am. B. i. p. 135°; Sumichrast, Mem. Bost. Soc. N. H. 
i. p. 545°. 
Supra rufo-brunneus, pileo paulo rufescentiore alis dorso concoloribus, cauda nigro regulariter transfasciata ; 
superciliis albis, capitis lateribus nigro et albo striolatis; gutture toto et pectore albis nigro frequenter 
maculatis, ventre imo et hypochondriis rufescente brunneis, crisso indistincte nigro transfasciato ; rostro et 
pedibus plumbeis. Long. tota 5:0, ale 2°3, caude 2°0, rostri a rictu 0°8, tarsi 0°8. (Descr. maris ex 
Choctum, Guatemala. Mus. nostr.) 
® 
Hab. Mexico}, Cordova (Sallé?), Orizaba (Sumichrast ®, le Strange), Jalapa (de Oca?), 
Teotalcingo (Boucard*), Guichicovi (Sumichrast"); GuaTeMaLa, Vera Paz (Skinner®), 
Choctum, Cahabon § to San Luis, Savana Grande (0. S. & F. D. G.); Brrrisn Hon- 
purRas, Corozal (oe) ; Honpuras, San Pedro (G. MW. Whitely®). 
Originally described from Mexican specimens 1, 7. maculipectus has since been met 
with by most of the collectors who have worked in the southern parts of that country. 
Prof. Sumichrast ® says it belongs to the hot and temperate regions, not extending its 
range above the elevation of about 4000 feet, or the altitude of Orizaba, where it 
becomes a somewhat rare species. In Guatemala it is also an inhabitant of the low- 
lying forest-lands, being common at Choctum and throughout the forests of Northern 
Vera Paz. We also found it in smaller numbers on the slopes of the Volcan de Fuego 
at an elevation of about 3000 feet and less. The bird also occurs on the Atlantic side 
of Honduras®; but it has not yet been traced in any of the other Central-American 
States, nor yet in Panama. 
In Colombia a closely allied race is found differing from the Central-American species 
in having grey instead of russet flanks. In this respect it approaches the Peruvian 
* TuryorHorvs Hypospoprus, sp.n. J’. rutilo affinis, sed abdomine toto cum hypochondriis griseo-fuscis, 
pectore solo plaga magna rufa notato et corpore supra rufescentiore differt. Long. ale 2-4, caudee 2:0, 
rostri a rictu 0-9, tarsi 0:9. 
Hab, CoLompra (mus. nostr.). 
