342 



ELECTRON PLATYRHYNCHUM SUBOLES Nelson. 



Electron platyrhynchus suholcfi NELSON, Smithson. Misc. Coll., Vol. GO, 

 No. 3, September 27, 1912, p. 5 ("Cana (at 2,000 feet altitude), eastern 

 Panama"). 



Chars, suhsp. — Similar to Electron pldtiirhj/ncliuin phitifrJii/nchum, but 

 much smaller ; pileum paler and duller ; and chin more distinctly greenish. 



Measurements. — Male (type) : wing, 117 mm. ; tail, 1771; exposed culmen, 

 42 ; tarsus, 18 ; middle toe without claw, 13.5. 



Type locality. — Cana (altitude 2,000 feet) Darien, easfern Panama. 



Geographic distribution. — Eastern Panama. 



Remarks. — This form has a rather limited distribution in eastern Panama, 

 and extends possibly to at least the lower Atrato Valley in northwestern 

 Colombia, although birds from the upper part of this valley are Electron 

 platyrhynchum platyrhynchum. 



ELECTRON PLATYRHYNCHUM MINOR (Hartert). 



Prlonirhynchus platyrhynchus minor HARTERT, Novit. Zool., V. No. 4, 

 December 31, 1898, p. 498 ("Panama"). 



Chars, suhsp. — Similar to Electron platyrhynchum suholes, but bill rel- 

 atively shorter and broader ; green of upper parts duller, more olivaceous ; 

 and under parts less bluish. 



Measurements. — Male: wing. 110 — 118 (average, 112.8) mm.; tail, 155 — 

 192 (171) ; exposed culmen, 35—40 (38.1) ; tarsus, 17—18.5 (17.8) ; middle 

 toe without claw, 13 — 15.5 (15.1). 



Female: wing, 106—116 (average, 110.9) mm.; tail, 151.5—186.5 (168.6) ; 

 exposed culmen, 34 — 39 (36.5) ; tarsus, 16.5 — 18 (17.2) ; middle toe without 

 claw, 13—15 (13.9). 



Type locality.— Panama. 



Geographic disfrihiition. — Central America, east to Canal Zone in Panama, 

 and west through Costa Rica to eastern Nicaragua. 



ELECTRON PLATYRHYNCHUM ORIENTICOLA. suhsp. nov. 



Chars, suhsp. — Similar to Electron platyrhynchum platyrhynchum from 

 western Ecuador, but smaller ; subterminal portions of middle rectrices en- 

 tire ; upper parts paler ; the back and wings more yellowish ; lower surface 

 lighter, and posteriorly much less bluish (more yellowish or greenish). 



Description. — ^Type, adult female. No. 177,039, United States National 

 Museum ; Hyutaniha, just below the falls of the Purus River, Brazil, March 

 16, 1901 ; J. B. Steere. Pileum and cervix amber brown, verging toward 

 Sanford's brown ; back deep yellowish oil green, its lower part cerro green ; 

 upper tail-coverts between grass green and meadow green; tail Prussian 



ifiy mistake given as 188 mm. bv Ridgway, Bull. U. S. Nat. Mus., No. 50, VI, 

 1914. p. 474. 



2From Ridgway, Bull. U. S. Nat. Mus., No. 50, VI, 1914, pp. 472-473. 



