1918.] NATURAL SCIENCES OF PHILADELPHIA. 269 



COTINGID^. 

 298. Tityra semifasciata costaricensis Ridgway. Costa Rican Tityra. 



Male, Ft. Lorenzo, February 26, 1911, and female, Gatun, Feb- 

 ruary 23, 1913. Iris reddish, bare skin around the eye and base of 

 bill red, tip of bill black, feet gray. 



Found along the shores of the lake and river. 



[299.] Erator albitorques (DuBus). Frasei 's Erator. 



[300.] Platypsaris homochrous (Sclater). One-colored Becard. 



301. Pachyrhamphus polychropterus cinereiventris (Sclater). Gray-billed Becard. 



Male and female, Gatun, June 25 and 18, 1911. Iris black, bill 

 blue-gray with black tip, feet blue-black. 



Nest found June 18 in a crotch of a small tree twenty-five feet from 

 the ground, an enormous pile of strips of dead banana leaves, plant 

 fibers, weeds, bark, etc. A small opening on one side. Eggs three, 

 two of which hatched the same day. The young are hatched naked 

 and blind, reddish in color. Eggs grayish-lavender, streaked and 

 scrawled w^ith deeper brownish. 



[302,.] Pachyrhamphus dorsalis Sclater. Bogota Becard. 



303. Pachyrhamphus cinereus (Boddaert). Cinereous Becard. 



Male, Gatun, May 26, 1912. Iris brown, bill blue-gray with black 

 tip, feet light gray. 



304. Pachjrrhamphus cinnamomeus Lawrence. Cinnamon Becard. 



Two males, Gatun, July 4, 1911, and Februarj^ 22, 1912. Iris 

 brown, bill black above, mandible blue-graj^, feet blue-gray. 

 Found in the forest. 



[305.] Microtriccus brunneicapillus (Lawrence). Brown-capped Tyrannulet. 



306. Tyrannulus elatus reguloides (Ridgway). Riker's Yellqw-crowned Tyrannulet. 



JVIale, Toro Point, March 3, 1912. Iris buffy-white, feet grayish- 

 blue. 



307. Elainopsis gaimardii macilvainii (Lawrence). Mcllvaine's Flycatcher. 



Male, Gatun, July 4, 1911. Iris brown, bill blue-black lighter at 

 base below, feet blue-black. 



Found along the forest trail. Has a quaint single call of Flycatcher 

 ciuality. 



I follow Mr. Ridgway in placing this genus in the Cotingidae, 

 though I cannot but feel that its affinities are with the Tyrannidae. 



[308.] Lipaugus holerythrus holerythrus Sclater and Salvin. Rufous Lipaugus. 



[309.] Lathria unirufa clara Ridgway. Panama Lathria. 



1310.] Sirystes albogriseus (Lawrence). Panama Sirystes. 



311. Attila citreopygus citreopygus (Bonaparte). Sclater's Attila. 



Male, Gatun, July 2, 1911. Iris gray-brown, bill sooty-black 

 paler at base of mandible, feet blue. 



