800 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



ELAINOPSIS GAIMARDII MACILVAINII (Lawrence). 

 MACILVAINE'S FLYCATCHER. 



Similar to E. g. gaimardli,''- but crown-patch light canary yellow 

 instead of white or yellowish w^hite. 



Adult. — Pileiim dusky gra3'ish brown, with a large median patch 

 (partly concealed) of light canary yellow^, some, at least, of the feath- 

 ers of this yellow crown-patch with a terminal guttate mark or 

 streak of dusky; hindneck deep olive, passing on back, scapulars, 

 lesser wing-coverts, rump, and upper tail-coverts into lighter and 

 slightly more greenish olive; tail deep hair-brown or nearly olive, with 

 light greenish olive edgings; wings dusky, the middle coverts broadly 

 (but not sharply) tipped with pale yellowish olive or dull light olive- 

 yellowish, the greater coverts edged (more broadly terminally) with 

 the same, the secondaries edged (except basally) with olive-yellowish, 

 the primaries edged with light olive; an indistinct superciliary stripe 



Possibly Elainea flavivertex Sclater (Proc. Zool. Soc. Lond., 1887, 49; Cat. Birds Brit. 

 Mus., xiv, 151), from eastern Peru, does, since this is compared with E. gaimardii, from 

 which it is said to differ in the 1 right yellow crown-patch and darker coloration of the 

 under i^arts. Tyrannula caniceps Swainson (Birds Brazil, pi. 49; Elaincn caniceps 

 Pelzeln, Orn. Bras., 1868, 107; Sclater, Cat. Birds Brit. Mus., xiv, 151) is a Myiopagis. 



a Muscicapara gaimardii D'Orbigny, Voy. Amer. Merid., iv, Ois., pt. 3, 1839, 326 

 (Yuracares, Bolivia). — Elainea g aim ardi Sclater, Cat. Birds Brit. Mus., xiv, 1888, 150, 

 part (excl. syn. Elainea macilvainii Lawrence and specimens from Panama). — Elainea 

 caniceps (not Tyrannula caniceps Swainson) Sclater, Cat. Am. Birds, 1862, 217 

 (Cayenne). — Elainea dcgans Pelzeln, Orn. Bras., ii. Abth., 1869, 179 (Engenho do 

 Gama, Borba, and Maribatanas, Brazil; coll. Vienna Mus.). — Myiopagis macilvainii 

 {not Elain,ea macilvainii hsiv;rence) Bangs, Proc. Biol. Soc. "Wash., xii, 1898, 136 (Santa 

 Marta, Colombia). 



Tyrannula caniceps Swainson {Elainea caniceps Pelzeln), which has been synony- 

 mized with this species, is not even congeneric, being a member of the Tyrannine 

 genus Myiopagis. 



Specimens of this fnjm the Santa Marta district cf Colombia have the crown-patch 

 appreciably tinged with yellow, but are not otherwise different, so far as I am able to 

 see, from specimens taken in Venezuela, Trinidad, and Brazil. Measurements com- 

 pare as follows: 



