290 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 93 



MYIARCHUS TUBERCULIFER LAWRENCEII (Giraud) 



Muscicapa lawrenceii Giraud, A description of sixteen new species of North 

 American birds, 1841, p. 7, pi. 2, fig. 1 (Nuevo Leon, Mexico 40 ). 



Specimens were taken in the vicinity of Tres Zapotes from March 7 

 to April 5, 1939, and January 19 to March 25, 1940. on Ccrro de Tuxtla 

 on May 9, and at El Conejo near the coast on February 10 and 12. 

 Two skins from El Conejo are about typical of lawrenceii, the wing 

 in a male measuring 85.9 mm. and in a female 80.8. The rest of the 

 series is definitely on the boundary line toward connectens of farther 

 south, there being only one male taken at Tres Zapotes on March 4 that 

 has the wing 85.5. It is possible that this may be a migrant from some 

 point farther to the north. In eight other males the wing ranges from 

 82.7 to 83.8, while in three others it is 78, 81, and 82 mm. respectively. 

 Two females from Tres Zapotes have the wing 75 and 79.2 mm., while 

 in one from Cerro de Tuxtla it is 79.2 mm. The close approach to 

 typical connectens is easily evident. 



The copetona or copetoncita was one of the common birds that 

 ranged both in the forest and along the lines of trees and shrubs bor- 

 dering the fields and trails. In woodland it was found in more open 

 branches of the tree tops. Individuals came constantly to the small 

 trees bordering our campsite. By March 24 the breeding season was 

 near, as the birds became more vociferous, and on April 5 I shot a male 

 in breeding condition at the Cerro Nestepe. The ordinary call was 

 a high-pitched whee-ee-ee, and I heard them also giving a song of 

 varied notes. Carriker found them ranging to 2,000 feet on the 

 Cerro de Tuxtla. 



EMPIDONAX FLAVIVENTRIS (Baird and Baird) : Yellow-bellied Flycatcher 



Tyrannula flaviventris W. M. Baird and S. F. Baird, Proc. Acad. Nat. Sci. 

 Philadelphia, vol. 1, Sept. 18, 1843, p. 2S3 (Carlisle, Pa.). 



Six specimens were shot near Tres Zapotes on March 7, 16, and 17, 

 April 10, 1939, and March 3 and April 8, 1940. They were found low 

 down at the borders of thickets, in open woods, and occasionally in 

 heavy forest. 



EMPIDONAX TRAILLII TRAILLII (Audubon) : Traill's Flycatcher 



Muscicapa Traillii Audubon, Birds of America, folio ed., vol. 1, 1828, pi. 45 (prairie 

 lands of the Arkansas River) . 



Carriker shot a late migrant male in a clump of shrubbery at El 

 Conejo May 15. 



44 Designated by Miller and Griscom, Amer. Mus. Nov.. No. 159, 1925, p. 7. 



