160 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



[Chloraxi>ln(jii!^] (iphtJidlruicus Sclatkk and .Salvix, Noin. A v. Neotr., 1873, 24, 



part (Guatemala). 

 i'ldorosp'mgns ojtthahnicus Boucakd, Liste Ois. (^iuat., LS78, 15."!. 



CHLOROSPINGUS POSTOCULARIS Cabanis. 

 DUSKY-HEADED CHLOROSPINGUS. 



Similar to C olivacctus, but pileiim much darker j^ray, the forehead 

 and crown approaching sooty black. 



Adults (sexes alike). — Pileum dusky gray or dull slate-])laekish, 

 fading into dusky slate on hindneck, this into slate-gray on sides of 

 neck; suborbital region and auricular region similar in color to pileum, 

 the lores rather gra3"er; a short white postocidar streak, involving 

 posterior half of upper eyelid and extending to about middle of 

 auricular region; malar region, chin, and throat grayish white, sparsely 

 and indistinctly flecked with dusky; chest, sides, flanks, and under tail- 

 coverts light yellowish olive or olive-3'ellow; bill black; legs and feet 

 horn color in dried skins. 



Adult //«//(^— Length (skins), 130.8-141 (135.9); wing, 68.8-73.7 

 (71.1); tail, 56-9-63.5 (60.2); exposed culmen, 9.9-11.2 (10.1); depth 

 of bill at base, 5.8; tarsus, 19.6-21.6 (20.6); middle toe, 12.7-13.^ 



Adult female. — Length (skins), 142.2; wing, 67.8; tail, 60.2; exposed 

 culmen, 10.7; depth of bill at base, 6.4; tarsus, 22.6; middle toe, 13. 

 (One specimen, from Pinabete, Chiapas.) 



Highlands of Guatemala (Duenas, Yolcan de Agua. Volcan de Fuego, 

 etc.) and Chiapas (Pinabete, Chicharras, etc.). 



('hloruiipin(ja!< podocuhirls Cabanis, Jourii. fi'irOrn., xiv, May, 1866, 163 (Guate- 

 mala; coll. Berlin Mus. ). — Salvin and Godman, Biol. Centr.-Am., Aves, i, 

 1883, 314 (Vok-an de Fuego, Guatemala, 3,000-8,000 ft.).— Sclater, Cat. 

 Birds Brit. Mus., xi, 1886, 240 (Duenas, Volcan de Fuego, and Yolcan de 

 Agua, Guatemala). — Nelson, Auk, xv, 1898, 157 (Pinabete, Chiapas; crit.). 



ChloroKpirujKs afrlccpn Nelson, Auk, xiv, Jan., 1897, 65 (Pinabete, Chiapas, s. e. 

 Mexico; I'oll. U. S. Nat. :\rus.). 



CHLOROSPINGUS OPHTHALMICUS (Du Bus). 

 BROWN-HEADED CHLOROSPINGUS. 



Similai' to ('. jKjstoeuhirlx, but pileum, hindneck, and sides of neck 

 grayish ])rown instead of gray, anterior portion of foreh(^ad and lores 

 distinctly whitish, and white postocidar spot rather larger. 



Adults {se,f'es alike). — Pileum, hindneck, and sides of head and lu'ck 

 (except malar region) plain gra3'ish ])rown (deep hair brown), darker 

 on suborbital region and posterior part of loral region, paler on sides 

 of neck; anterior portion of lores grayish white, this sometimes 

 extending across anterior portion of forehead; a large white postocular 

 spot, involving nearly whole of upper evelid and posterior portion of 

 lower eyelid, and extending l)ackward nearly to end of auricular 



^ Two specimens, from Pinabete, Chiapas. I have not seen a Guatemalan specimen. 



