34 



very distinct" (Cat. Eds., Vol. X, p. 125), but on page 162, where the 

 type of striolata is described, we find "lower back and rump light chest- 

 nut rufous with narrow blackish shaft lines, not very distinct." Now 

 in all of our twenty-five adult birds the black shaft lines are very distinct. 

 The wing measurements are intermediate between those given for japo- 

 nica and striolata,, thus being near Hirundo substriolata Hume. It is 

 also stated that striolata has "no rufous on base of forehead." In our 

 specimens there is a narrow but distinct frontal line of rufous passing 

 back over lores and eye to large triangular patch on side of head. Phil- 

 ippine birds need to be compared with typical specimens. 



No. 3188, immature male. — Calayan Island, P. I.. October 31, 1903. 



Pattern and color same as in adult, except back and top of head 

 browner with less metallic blue; chestnut patch on side of head lighter: 

 rump creamy white with three or four chestnut feathers of adult plum- 

 age; tail and wings browner and lacking blue gloss; tertiaries and coverts 

 more or less tipped with whitish; the ground color of under parts is 

 not much different from the adult, hut (he characteristic shaft stripes 

 are everywhere lighter and greatly reduced, becoming obsolete on under 

 tail coverts and absent on axillaries and lining of wing, except along 

 edge of wing where there are a few narrow lines. Bill, legs, and nails 

 black. 



Measurements <>f Hinindo striolata. 



o 



