188 MR. H. WH1TELY ON HUMMING-BIRDS [Feb. 4, 



after a long search, that I managed to find it hidden in the dead 

 leaves at the bottom of the brushwood. Imagine my delight on 

 taking it up and finding that it was Myrtis yarrelli, which is stated 

 to be found only in Arica, at a very low elevation. 



Length 3 T 5 y in., bill f in., wing 1 5 in. Two outer tail-feathers on 

 each side narrow, like spines ; throat burnished lake ; bill black, 

 eye black ; legs, toes, claws black. 



2. Phaethornis superciliosus (Linn.). 



June 2nd, 1871. Cosnipata, alt. 2300 feet. — This species is rare. 

 It frequents the bell-shaped flowers in the clearing. Very rapid in 

 its movements. Bill, upper mandible black, lower black at tip, 

 vermilion at base. Plumage dusky ; legs, toes, claws brown. Two 

 outer tail-feathers longest, and tipped with white ; eye black. Length 

 from tip of bill to outer tail-feathers 6| in., bill lg in., length of 

 wing 2-| in. 



3. Petasophora iolata, Gould. 



May 28th, 1871. Cosnipata. — Shot in the forest. Frequents 

 the flowers of the creeping plants, attached to the trunks of large 

 trees ; generally at a great elevation. Bill black ; legs, toes, claws, 

 and eye black. Dull-coloured plumage; ear-tufts blue; small patch 

 of golden blue and green on throat. 



Length 4| in., bill | in., wing 2| in. 



4. IoljEma whitelyana, Gould, Ann. & Mag. N. H. ser. 4, 

 1872, p. 452. 



Cosnipata. Female shot May 21st, male August 3rd, 1871. 



Very rare. Frequents flowering plants at the tops of the loftiest 

 trees in the depths of the forest, at nearly all times out of range of 

 gun-shot. Very powerful in flight, and darts from flower to flower 

 with extraordinary rapidity. 



Male. Bill black ; eye dark hazel ; legs, toes, and claws black ; 

 crown of head and back green ; throat, upper part immediately under 

 bill black, lower part rich purple, breast black. Female smaller in 

 size, but nearly the same plumage. 



Male. Length 5-Jg- in., of bill \\, wing 2|^. Stomach contained 

 small insects. 



5. Cynanthus mocoa (Delattr. & Muls.). 



San Antonio, in the valley of Paucartambo, July 3rd, 1871 ; 

 elevation 3600 feet. — These two males were the only ones seen ; 

 they were in a small glade in the forest, feeding on the bell-shaped 

 flowers of a plant somewhat similar to the tobacco-plant, and which 

 grows to about the same size. In this glade there were four different 

 species of Humming-birds, all feeding on the same flowers. This 

 bird, after hovering a few seconds over the flowers, suddenly darts 

 away into the forest, where it remains a long time perched on the 

 branch of a tree without moving. Bill black ; eye, legs, toes, and 

 claws black ; crown of head burnished green, small patch of blue in 



