160 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



[Chhruxji'mgiis] ophthalmicus Sclater and Salvin, Nom. Av. Neotr., 1873, 24, 



part (Guatemala). 

 Chlorospingus opthalmicus Boucard, Liste Ois. Guat., 1878,38. 



CHLOROSPINGUS POSTOCULARIS Cabanis. 

 DUSKY-HEADED CHLOROSPINGUS. 



Similar to C. olivaceus, but pileum much darker gray, the forehead 

 and crown approaching sooty black. 



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

 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 i-ather grayer; a short white postocular 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 j'ellowish olive or olive-yellow; bill black; legs and feet 

 horn color in dried skins. 



Adult male.— Ijength. (skins), 130.8-141 (135.9); wing, 68.8-73.7 

 (71.1); tail, 66-9-63.5 (60.2); exposed culmen, 9.9-11.2 (10.4); 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, Volcan de Agua, Volcan de Fuego, 

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



Cldorospingus postocularis Cabanis, Journ. fiirOrn., xiv, May, 1866, 163 ^Guate- 

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

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

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

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



Chloronpingus atriceps Nelson, Auk, xiv, Jan., 1897, 65 (Pinabete, Chiapas, f. e. 

 Mexico; coll. U. S. Nat. Mus.). 



CHLOROSPINGUS OPHTHALMICUS (Du Bus). 

 BROWN-HEADED CHLOROSPINGUS. 



Similar to 6'. postocidaris, but pileum, hindneck, and sides of neck 

 grayish brown instead of gray, anterior portion of forehead and lores 

 distinctly whitish, and white postocular spot rather larger. 



Adults (se.res alike). — Pileum, hindneck, and sides of head and neck 

 (except malar region) plain grayish brown (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 ej'elid and posterior portion of 

 lower eyelid, and extending backward nearly to end of auricular 



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



