PSAUDOPEOCNIN^. 



201 



web. Total length 4-5 inches, culmen 0-25, wing 4-6, tail 1-75, 

 tarsus 0-4. 



Young. Much duUer in colour than the adult, and having the 

 rump washed with sandy rufous, with which colour also the wing- 

 coverts and inner secondaries are tipped ; the breast and under 

 wing-coverts are also strongly tinged with rufous. 



Hub. Central India, extending into Kutch, Kattiawar, and Gujarat. 



a. Ad. sk. India. 



b. Ad. sk. Kattiawar, Oct. 12, 1871. 



c. Ad. sk. Kangra, Punjauh. 



d. S ad. sk. Sambliur Lake, INIay 15, 



1878 (i^. M. Adam). 



e. 2 ad. sk. Near Nagpoor. 



/. $ ad. sk. Godavery Valley, Jan. 3, 



1871. 

 ff. Juv. sk Behar. 



Gould Collection. (Type of 



L. empusa.) 

 Major Hayes Lloyd [P.]. 

 Capt. Stackhouse'PinwillfP.]. 

 E. W. Gates, Esq. 



Gould Collection. 



W. T. Blanford, Esq. [P.]. 



B. H. Hodgson, Esq. [P.]. 



Subfamily II. PSALIDOPEOCNIN^. 



The members of this subfamily of Swallows are easily distin- 

 guished by the serrations on the external edge of the wing in the 

 male birds. The African species are of sombre coloration, being 

 black or blue, while their American representatives are brown and 

 approach the Sand-Martins (Ootile) in appearance. The possession 

 of such a striking character as the serrated primary, confined in 

 each instance to the male bird only, in one strictly African genus 

 and another strictly American one, is an interesting instance of 

 close affinity in birds of the Old and 'New Worlds, when considered 

 along with the peculiar distribution of the genus Petrocliclidon 

 (anted, p. 190). 



Primary of Psalido2)rocne holomelana (magnified), to show serrations 

 on external margin. 



Key to the Genera. 



a. Nostrils longitudinal, with an enlargement 

 anteriorly, overhung with a posterior 

 margin ; prevailing colour of plumage [p. 202. 



black 10. PSALIDOPBOCNE, 



h. Nostrils rounded and exposed, with no 



overhanging membrane ;prevailuig colour [p. 202. 



of plumage brown 11. Stelgidopteryx, 



