BIRDS OF NORTH AND MIDDLE AMERICA. 5Y 
(106); wing, 54.5-62.5 (59.2); tail, 36-40.5 (38.6); culmen, 14.5-15.5 
(14.9); tarsus, 18.5-20 (19.3); middle toe, 10.5-11.5 (11.1).% 
Guatemala (Chocttim; Chiséc; sources of Rio de la Pasién), Costa 
Rica (Dota; Naranjo de Cartago; Grécia; Guaitil; Juan Vifias; Las 
Mesas; El General; Buena Vista; Rio Platanar; Guayabo; Cariblanco 
de Sarapiqui; Navarro; Rio Huacim; Lagu4ria; Santa Maria de 
Dota), and Panamé (Panamé; Calovévora, Chitra, Calobre; and 
Santa Fe de Veragua; Boquete; Volcan de Chiriqui, and along Pacific 
coast to western Ecuadér (Chimbo)? (See Berlepsch and Taczan- 
owski, Proc. Zool. Soc. Lond., 1883, 564.) : 
Dysithamnus semicinereus (not of Sclater, 1855) SctaTeR, Proc. Zool. Soc. Lond., 
1858, 222, part (monogr.); Cat. Birds Brit. Mus., xv, 1890, 221, part (Chiséc, 
sources of Rio de la Pasién, and Choctim, Guatemala; Costa Rica; Santa Fé 
de Verégua, Calovévora, and Panamd4, Panam4).—Satvin and Scrater, Ibis, 
1860, 399 (Chocttim, Guatemala; crit.).—Satvin, Proc. Zool. Soc. Lond., 1867, 
144 (Santa Fé de Ver4gua); Proc. Zool. Soc. Lond., 1870, 194 (Calovévora, 
Chitra, Calobre, and Volcan de Chiriqui, Panama).—Lawrence, Ann. Lyc. 
N. Y., ix, 1868, 107 (Turrialba, Dota, Grécia, and Guaitfl, Costa Rica).— 
Frantzius, Journ. fir Orn., 1869, 305 (Costa Rica).—Bovcarp, Proc. Zool. 
Soc. Lond., 1878, 60 (Naranjo de Cartago, Costa Rica); Liste Ois. récol. 
Guat., 1878, 38.—ZxLep6én, Anal. Mus. Nac. Costa Rica, i, 1887, 114 (Cartago, 
Turrialba, and Dota, Costa Rica)—Banes, Proc. New Engl. Zool. Club, iii, 
1902, 41 (Boquete, Panam4, 4000-5000 ft.)—Satvin and Gopmav, Biol. 
Centr.-Am., Aves, ii, 1892, 206, part (excl. South American references and 
localities). 
[Dysithamnus] semicinereus SctarER and Satvin, Nom. Av. Neotr., 1873, 70, 
part.—_SHarpe, Hand-list, iii, 1901, 18, part. 
Disithamnus semicinereus CHERRIE, Expl. Zool. Merid. Costa Rica, 1893, 41 (Rio 
Huactm, s. w. Costa Rica). 
« Fifteen specimens. 
Locality. Wing: | Daal: | Ue | Pee Mae 
MALES. 
Three adult males from Guatemala..............2..2...-0--055 58.5 37.8 14.8 18.7 11.2 
Ten adult males from Costa Rica...........-.222-.222--22200+- 60. 6 39.4 14.6 19.5 11.4 
Two adult males from Panamé (Chiriqui and Verdgua)....... 59.2 39.5 14.2 18.5 11.2 
Four adult males (D. m. semicinereus) from Colombia......... 65. 4 42.4 15 19.7 11.7 
One adult male (D. m. semicinereus) from Venezuela.......... 64 41 14.5 18.5 11.5 
Five adult males (D. m. andrei) from Trinid4d................ 61 41 15 19 11.3 
One adult male (D. m. oberi) from Tobago...................-- 64.5 44 15 20 11.5 
One adult male (D. m. spodionotus) from British Guiana. ..... 62.5 44.5 13.5 20.5 12.5 
Two adult males (D. m. mentalis) from southern Brazil_....... 58.2 43.3 13 19 il 
Ten adult males of D. affinis from southwestern Brazil........ 62.4 40.7 14.9 19.8 12.1 
FEMALES. 
Three adult females from Guatemala................---00200-+ 56.3 36.8 14.7 18.5 10.8 
Ten adult females from Costa Rica.........-.2-.--2-eeeeeeeeee 60.1 39.1 15 19.6 11.1 
Two adult females from western Panamé (Verdgua and Chiri- 
GY essccvnntuankiacncmorcnannaanesaaaaianes emen camden eee 59.2 38.7 14.5 19 11.2 
Five adult females (D. m. semicinereus) from Colombia........ 61.2 39.5 14.9 19.9 11.4 
One adult female (D. m. andrei) from Trinidéd .........---.-- 59 35.5 16 18 11.5 
Six adult females of D. affinis from southwestern Brazil....... 61.2 40.6 14.7 19.5 11.6 
