76 BANGS — SOME COLOMBIAN BIRDS Gee 
Piaya cayana mehleri (Bonap.). 
One young female from San Sebastian, July 27, 1899. 
Chloronerpes yucatanensis uropygialis (Cab.). 
One adult male from San Sebastian. 
Petasophora iolata Gould. 
One hundred and thirty-eight specimens from San Sebastian 
and El Mamon. This series contains young of various ages, and 
adults of both sexes. In his efforts to get the rarer hummers Mr. 
Brown took many more specimens of this common species than 
was necessary. 
Petasophora cyanotis (Bourc. & Muls.). 
Two specimens, adult male from San Sebastian, July 20, adult 
female from E] Mamon, July 21. 
Panychlora russata Salv. & Godm. 
Eight specimens, seven males and one female, from San 
Sebastian and E] Mamon. 
Metallura districta Bangs. 
Three specimens, two adult males and one young male, from 
San Sebastian and Templado. 
Acestrura astreans' sp. nov. 
Nine specimens, three adult males, five adult females and one 
young female, from San Sebastian, 6600 feet, and E] Mamon, 8000 
feet, June and July, 1899. 
Type, from San Sebastian, Colombia, 6600 feet altitude, & adult, no. 6840, 
coll. of E. A. and O. Bangs, collected July 16, 1899, by W. W. Brown, Jr. 
Specific characters.— Nearest to A. heliodorvi, though a very distinct species. 
Adult ¢ with lateral throat feathers much elongated; differs from adult & of 
14 streans — gleaming like a star. 
