162 SOME CHINESE VERTEBRATES. 
summer, and autumn. This very distinct species, easily separated from R. 
riparia by its small size, pale coloring, and short tail, seems to be the breeding 
form of Hupeh and eastern Szechwan. The eggs must occasionally be laid very 
early in the season, as Mr. Zappey took one nearly full grown young bird on 
the wing at Wanhsien April 2. Others of about the same size and in similar 
plumage were secured at Ichang on June 18. 
RIPARIA RUPESTRIS (Scopoli). 
Three adult males, Waliangping, and Waszekow, western Szechwan, October. 
CHELIDON RUSTICA GUTTURALIS (Scopoli). 
Twenty-one specimens young and adult of both sexes Ichang, Hupeh, and 
Foochow, Luchow, Changyanghsien, Juchi, Chiangchinghsien, and Hochiang- 
hsien, Szechwan, spring, and summer. 
CHELIDON TYTLERI (Jerdon). 
Five adults, both sexes, Washan, Szechwan, May 30, 1908. This species 
was seen on this one occasion only. They were part of a migrating flock and 
were feeding throughout a valley (6,000 feet) ; they had disappeared the following 
day. 
CHELIDON DAURICA NIPALENSIS (Hodgson). 
Twenty-three specimens, young and adult, both sexes, Ichang, Hupeh, and 
Luchow, Chinchihsien, and Lochichen, Szechwan, spring, summer, and autumn. 
MUSCICAPIDAE. 
HEMICHELIDON SIBIRICA Gmelin. 
One adult male, Ichang, October 10, 1907. 
HEMICHELIDON FULIGINOSA Hodgson. 
‘Five specimens, adult male and female, and three young in nestling plumage, 
western Szechwan, August 10-18, 1908: Nachuka, 11,000 feet, Shuowlow, 
12,500 feet, and Ramala Pass, 12,000 feet. 
ARIZELOMYIA LATIROS TRIS (Raffles). 
One adult male, Pootung, Hupeh, May 20, 1907. 
