174 Proceedings of the Biological Society of Washington. 



Saucerottia tobaci monticola subsp. nov. 



Differs from Saucerottia tobaci feliciie (Lesson), in being darker, less 

 bronzy green, in general coloration. 



Type, No. 36,841, Collection Carnegie Museum, adult male; Guarico, 

 Estado Lara, Venezuela, February 8, 1911; M. A. Carriker, Jr. 



Metallura tyrianthina oreopola subsp. nov. 



Similar to Metallura tyrianthina tyrianthina (Loddiges), but general 

 coloration darker, and tail deep maroon purple, instead of bronzy or 

 coppery. 



Type, No. 87, 217, Collection Carnegie Museum, adult male; Paramo de 

 Rosas, Estado Lara, Venezuela, March 10, 1911 ; M. A. Carriker, Jr. 



Microstilbon genus novum. 



With the size and general characters of Chsetocercus Gray, bul tail of 

 male very different, the two outer rectrices elongated (almost as long as 

 the body), slightly expanded at the tips. Type, Microstilbon insperatus 

 sp. nov. 



Microstilbon insperatus sp. nov. 



Above dark shining green; wings dusky; tail dusky or bronzy viola- 

 ceous; below grayish, tin-oaf paler, whitish, spangled with green, and 

 sides also more or less green. Wing, 26 nun.; tail, 30.5 mm.; culmen, 

 I'J.o mm. 



Type, No. 38,387, Collection Carnegie Museum, male (probably not 

 quite adult); Buenavista, Provence del Sara, Bolivia, July 1:!, 1010; 

 .lose Steinbach. 



Pdectron platyrhynchum medianutn subsp. nov. 



Similar to Electron platyrhynchum pyrrholsemum Berlepsch and Stolz- 

 mann, but chin-spot more bluish and more conspicuous ; posterior under 

 parts and remiges somewhat less suffused with bluish ; chestnut rufous 

 areas slightly darker and duller. 



Time, No. 38,346, Collection Carnegie Museum, adult female; Rio 

 Turutu, Provence del Sara, Bolivia, August II, 1910; Jose Steinbach. 



Pyrrhura viridicata sp. nov. 



Above green; wings externally bright blue; tail greenish above, cop- 

 pery below; under surface mostly dull green; under wing-coverts orange ; 

 ear-coverts dull maroon; narrow frontlet scarlet. 



Type, No. ;!7,i»,S7, Collection Carnegie Museum, adult male; San Lo- 

 renzo, Santa Marta, Colombia, July 27, 1911; M. A. Carriker, Jr. 



Rallus longirostris leucopha^us subsp. nov. 



Above similar to Rallus longirostris waynei Brewster, but very different 

 below, being almost white, with a slight wash of ochraceous bull' on the 

 breast. Very much paler and whiter below even than Rallus longirostris 



cory i . 



Type, No. :*.'.». 7 1 7 , Collection Carnegie Museum, adult male; Majagua 

 River, Isle of Pines, November 7, 1912; Gustav A. Link. 



