NOTES ON GUAITEMALAN BIRDS WE,TMOlRE 553 



was shot. Another was secured on the same date at 10,000 feet at 

 Maria Tecum. The birds were found often on low perches, some- 

 times only a yard above the ground. The call note was a sprightly 

 whit whit repeated steadily. 



Van Rossem has indicated that the present species, called fulvi- 

 fectus in the past, is to be known as ai^nisP- 



EMPIDONAX FLAVESCENS DWIGHTI van Rossem 



Empidonax flavescens dwighti van Rossem, Auk, 1928, p. 359 (Los Esesmiles, 

 Clialateuango, EI Salvador). 



On October 29 at 6,500 feet, on the north slope of Volcan de Acate- 

 nango above Duehas, I shot a male as it rested with twitching tail on 

 an open perch. 



The beautifully clear yellowish green of this bird marks it instantly 

 from any of its relatives that I secured. In the identification of this 

 specimen I have had the benefit of the opinion of Robert T. Moore 

 and of the examination of considerable material in this difficult group 

 in his collection while he was working on these specimens in the 

 National Museum. 



MYIOCHANES PERTINAX PERTINAX (Cabanis and Heine) 



Contopus perUnax Cabanis and Heine, Museum Heineanum, pt. 2, Sept. 1859, p. 

 72 (Jalapa, Veracruz). 



The first one of these alert flycatchers was taken at 6,500 feet eleva- 

 tion on Volcan de Acatenango, above Duehas on November 1. About 

 Chimaltenango on November 7 I saw several in the cypress and other 

 trees bordering lanes and milpas and secured another. At Panajachel 

 two more were collected on November 11 and 12. The birds were 

 rather wild and sought elevated lookout perches. They were called 

 pingjying by the native boys in evident imitation of their loud notes. 



The two taken at Panajachel are distinctly browner than the other 

 two, but all are identified as pertinax. It appears probable that there 

 are two forms united under that name at present. There is no ap- 

 proach in the four secured to either paUidiventris or minor. 



MYIOCHANES RICHARDSONII RICHARDSONII (Swainson) : Western Wood Pcwce 



Tyrannula Richardsonii Swainson, in Swainson and Richardson's Fauna Boreali- 

 Aniericana, pt. 2, 1831 (1832), p. 146, pi. 46 (Cumberland House, Saskatche- 

 wan). 



A male taken at the edge of a coffee plantation at 3,400 feet eleva- 

 tion near Las Lajas, below Alotenango, lias the following dimensions : 

 Wing 85.7, tail 60.8, culmen from base 14.2, tarsus 13.7 mm. The bill 



" BuU. Mus. Comp. ZoOl., vol. 77, 1934, p. 392. 



