162 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



CHLOROSPINGUS SUMICHRASTI Ridgway. 

 STTMICHRAST'S CHLOROSPINGUS. 



Similar to C. ophtfuilmicus, but much browner above (the pileum 

 even slightly browner than in C. albitemporalis); throat distinctly 

 flecked with dusky; yellowish olive-green of chest, etc., paler and 

 duller; upper chest pale bufl'y grayish brown. 



Adult male. — Pileum and hindneok plain sepia brown, the sides of 

 neck paler, more hair brown; posterior portion of lores and sub- 

 orbital region verj' dark sooty brown, passing into deep sepia brown 

 on auricular region; a large, white, elongated postocular spot, involv- 

 ing whole of upper and posterior half of lower ej'elid; anterior por- 

 tion of lores dull white, continued narrowly and brokenly across 

 anterior portion of forehead; rest of upper parts plain gi-eenish olive 

 (much browner than in C. (qiJitliulmicus); malar region, chin, and 

 throat dull white, the first and last tinged with pale brownish buffy 

 posteriorly, the buffy tint of lower throat passing into a pale buffy 

 grayish brown tint on upper chest; middle and lower throat distinctly 

 flecked with dvisky, the flecks largest and most numerous laterally, 

 below lower margin of malar region; chest, sides, flanks, and under 

 tail-coverts light yellowish olive, the first paler and tinged with pale 

 buffy brownish; breast and abdomen very pale graj', almost white on 

 center of abdomen; bill blackish; legs and feet horn color (in dried 

 skins); length (skins), 133.4; wing, 66.5; tail, 56.4; depth of bill at 

 base, 5.3;' tarsus, 20.8; middle toe, 11.7.^ 



State of Vera Cruz, southeastern Mexico (Mount Azul, near 

 Orizaba). 



ChlorospingiLS ophtliahnictis {not AiTemon ophthalmicus Dn 'Bus) Sumicheast, Mem. 



Bost. Soc. N. H., i, 1869, 549, part (temperate reg. Vera Cruz, part). 

 Chlorospingux mmichrasti Ridgway, Proc. Wash. Acad. Sci., iii, Apr. 15, 1901, 150 



(Mount Azul, near Orizaba, Vera Cruz; coll. U. S. Nat. Mus.). 



CHLOROSPINGUS ALBIFRONS Salvin and Godman. 

 WHITE-FRONTED CHLOROSPINGUS, 



Most like 0. iiumichrasti, but postocular white spot smaller and 

 pointed, instead of broad and rounded, posterioi-ly ; malar region, 

 chin, and throat buff' instead of white; chest buffy yellow; pileum, 

 hindneck, and sides of neck much lighter brown, and back, etc., much 

 clearer (less brownish) olive-green. 



Adult female. — Pileum, hindneck, and sides of neck plain broccoli 

 brown, deeper on forehead and crown, paler on neck; anterior portion 



^Tip of maxilla broken oft. 



^One specimen, the type; Xo. 37511, U. S. Nat. Mus., Mount Azul, near Orizaba, 

 Vera Cruz, October, 1864; Prof. F. Sumichrast. 



