1. CAPRIMULGUS. 523 



y'. Scapulars obviously dififereut 

 from the back and rump by their 

 dark centres and broad butf or 

 rufous margins. 

 a°. Obvious and broad collar round 

 the bind neck, 

 a^. Wing- more tban 7 inches in 



length rujicollis, p. 531. 



b'. Wing less than 7 inches in 

 length. 

 a". Of a desert-like sandy- 

 buff colour. 

 (i'. White patch on first 

 primary larger, reach- 

 ing the shaft nubicus, p. 560. 



U'. White patch on fii'st 



primarv' smaller, not 



extending to the shaft, asiiiticus, p. 558. 



IP. Blackish above ; collar 



obvious on the upper 



surface only pedoralis, p. 534. 



c*. Brown above ; collar dis- 

 tinct on the lower neck 



also feriidus, p. 534. 



¥. No broad and obvious collar 

 round the hind neck, 

 c". Three outer primaries with [allies, pp. 526-530. 



white spots euro2)ceus J and 



(P. Four outer primaries with 

 ■white spots. 

 d^. Wing more than 6'5 in. 

 in length, 

 e^. Outer primaries with 

 rufous spots near the 

 base or on the outer [allies, pp. 537-540. 



webs macrurus cJ and 



d^. Outer piimaries without 



distinct i-ufous spots 



near the base or on 



the outer webs. 



a^°. Median streak of 



black spots along 



the top of the head, atrijyennis c? , p. 542. 

 b^°. Longitudinal black 

 spots over the whole 

 of the top of the [p. 543. 



head andamanicus iS , 



e^. Wing not more than 6'5 



inches in length. 



e^. Spot on first primary 



extendmg to the shaft. 



c^°. White tips to outer 



rectrices less than 



1'5 inches in extent, rujigena ^ , p. 532. 

 d'". White tips of outer 

 rectrices more than 

 l-o inches in extent, franatus, p. 533. 



