722 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Napa Co., California). — Chambeklin, Condor, iii, 1901, 33-36, figs. 1-3 

 (Vallecito, California; nesting habits; descr. nest and eggs, illustrated). — 

 Mailliard, Condor, iii, 1901, 127 (Paicines, San Benito Co., California, 

 resid.).— Obekholser, Auk, xix, 1902, 301 (w. of Pecos R., w. Texas).— 

 Beewsteh, Bull. Mus. Comp. Zool., xli, 1902, 209 (Cape district. Lower 

 California, resid. from coast to top of highest mountains; crit. ;^ descr. nest 

 and eggs). 

 Plolioplila] c[serulea] obscura Bailey (Florence M.), Handb. Birds, W. U. S., 

 1902, 466. 



POLIOPTILA CiERULEA MEXICANA (Bonaparte). 

 MEXICAN GNATCATCHEE, 



Similar in coloration to T*. c. cserulea but decidedly smaller. 



Adult male.— Length (skins), 100-107 (103.3); wing, 45-50 (47.5); 

 tail, 45^8 (46.3); exposed culmen, 9.5-11 (10.3); tarsus, 15-17 (16.3); 

 middle toe, 8-9.5 (8.6).« 



Adult female.— Length (skins), 101-103 (102); wing, 42.5-48 (45.3); 

 tail, 41^5.5 (43.5); exposed culmen, 9.5-10.5 (10); tarsus, 16-17 (16.5); 

 middle toe, 8-9 (8.5).'' 



Southeastern Mexico, in States of San Luis Potosi (Valles), Vera 

 Cruz (Minatitlan; Tlalcotalpan), Oaxaca (near Tehuantepec; Santa 

 Efigenia; Oaxaca), Chiapas (Huehuetan; Palenque), Tabasco (Monte- 

 cristo), Campeche (Campeche), and Yucatan; Guatemala (in winter 

 only?). 



(?) C\ulicivora] coerulea Cabanis, Mus. Hein., i, 1850, 34, part (Jalapa, Vera 

 Cruz). 



(?) Polioptila caerulea Sclateb, Proc. Zool. Soc. Lond., 1859, 363 (Jalapa, Vera 

 Cruz). 



Polioptila caerulea Baird, Rep. Pacific R. R. Surv., ix, 1858, 380, part. 



Polioptila cserulea Baird, Review Am. Birds, 1864, 74, part. — Lawrence, Ann. 

 Lye. N. Y., ix, 1870, 199 (n. Yucatan); Bull. U. S. Nat. Mus., no. 4, 1876, 

 12 (Santa Efigenia, Juchitan, Tehuantepec, and Oaxaca). — Baird, Brewer, 

 and RiDGWAY, Hist. N. Am. Birds, i, 1874, 78, part. — Salvin and Godman, 

 Biol. Centr.-Am., Aves, i, 1880, 50 part. — Salvin, Cat. Strickland Coll., 

 1882, 61 (Mexico; Guatemala).— Sharpe, Cat. Birds Brit. Mus., x, 1885, 442, 

 part. — American Ornithologists' Union, Check List, 1886, no. 751, part. — 

 Chapman, Bull. Am. Mus. N. H., viii, 1896, 276 (Chichen-Itza, Yucatan). 



P\_olioptUa'] cserulea Ridqway, Man. N. Am. Birds; 1887, 569. 



[Polioptila'] caerulea Sclater and Salvin, Nom. Av. Neotr., 1873, 4, part. 



OuUdvora mexicana Bonaparte, Consp. Av., i, 1850, 316. 



[Culicworal mexicana Heine and Rbichenow, Nom. Mus. Hein. Orn., 1882, 24. 



Polioptila mexicana Sclater, Proc. Zool. Soc. Lond., 1859, 363 (Jalapa, Vera 

 Cruz), 373 (Oaxaca); (?) Cat. Am. Birds, 1862, 12 (Orizaba, Vera Cruz).— 

 (?) Sclater and Salvin, Ibis, 1859, 9 (Duenaa and Volcan de Fuego, 14,000 

 ft., Guatema-la).— Salvin, Ibis, 1866, 202. 



[PolioptUa'] mexicana Gray, Hand-list, i, 1869, 237, no. 3439. 



Polioptila coerulea mexicana Nelson, Auk, xv, Apr., 1898, 160 (lowlands of Vera 

 Cruz, a. to e. Chiapas; crit; descr.). 



P\olioptila'\ caerulea meodcana Hellmayr, Novit. Zool., vii, 1900, 535 (s. Mexico; 

 Yucatan?); Tierreich, 18 Lief., 1903, 21. 



{'!)Polioptila Sclater, Proc. Zool. Soc. Lond., 1856, 298 (Cordova, Vera 



Cruz). 



« Twelve specimens. '' Five specimens. 



