5. niEUNDo. 163 



Adult male (Japan ; Prof. Milne). General colour above dark 

 purplish blue, streaked with white where the white bases show 

 through ; the wing-coverts like the back ; bastard-wing, primary- 

 coverts, and quills blackish, glossed externallj^ with steel-blue ; rump 

 and upper tail-coverts cinnamon-rufous, with distinct narrow black 

 shaft-lines, the long coverts dark purplish blue, with light rufous 

 bases ; tail-feathers black glossed with steel-blue ; crown of head 

 dark puqjlish blue like the back ; over the eye a few rufous feathers ; 

 sides of the hinder crown deep rufous, converging towards the nape, 

 but not forming a distinct collar, the nape-plumes being blue edged 

 with rufous ; lores whitish, tipped with dusky ; ear-coverts smoky 

 brown, slightly tinged with rufous and broadly streaked with dusky 

 brown ; cheeks and throat dull white, broadly streaked with blackish, 

 more distinctly on the latter ; remainder of the under surface pale 

 rufescent buff, very distinctly streaked with black ; sides of upper 

 breast purplish blue ; thighs rather whiter ; under tail-coverts like 

 the abdomen, the lower ones blue-black, with pale rufescent bases 

 and black shaft-lines ; lateral under tail-coverts white, with black 

 sliaft-lines and a distinct oval spot of blue-black near the tip ; 

 axillaries and under wing-coverts nifescent buff, all with distinct 

 black shaft-lines, broader on the outer under wing-coverts ; quills 

 dusky below, paler along the inner web. Total length 7'4 inches, 

 culmen O--!, wing 4-55, tail 4, tarsus 0-65. 



Ohs. Very similar to H. nipalensls, and differing only in its under 

 surface being more coarsely streaked. The shaft-stripes on the 

 rump are very distinct when present, but vary considerably in 

 strength of marking. 



Hirundo suhstrwlata of Hume is a slightly larger race, as will 

 be seen by the following series of measurements. It ranges from 

 Formosa to Assam in winter. 



A. — H. japoiiica. 



Wing, 

 in. 



a. Japan (Milne) 4-55. (Mus. Brit.) 



/3. Karen Hills ( Wcaxllmv Eamsay) . . 4-6. (Mus. R. G. W. R.) 



y. Floras ( Wallace) 4-4.5. (Mus. Brit.) 



8. Floras ( Wallace) 4-4. (Mus. H. Seeb.) 



e. Floras ( Wallace) 4-5. (Mus. H. Seeb.) 



B. — H. suhstrwlata. 



f. Formosa (SwinJtoe) 5-0. (Mus. H. Saab.) 



rj. Formosa (Swinhoe) 4-9. (Mus. H. Seeb.) 



e. Formosa {Sicinhoe) 4-85. (Mus. H. Seeb.) 



Hah. Japan and Cliina, extending into the Burmese countries and 

 as far south as the island of Flores. 



a. A.d. sk. Japan. Professor Milne [C.J. 



b. Ad. sk. Japan. R. B. Shai-pe, Esq. fP.l. 



c. Ad. sk. China. R. B. Sharpe, Esq. [P.]. 



d. Ad. sk. Flores. A. R. Wallace, Esq. [0.1. 



m2 



