9. EtITXCILLA. 335 



Key to the Species. 

 (ilalcs.) 



a. Tail black, or with each feather, except the two 



centre ones, chestnut tipped with black. 

 a'. A large patch of white on the whig. 



a" . Breast, belly, and under tail-coverts chest- 

 nut schisticeps, p. 351. 



6". Breast black ; belly and under tail-coverts 



white c<pruleocepliala, p. 353. 



6'. No patch of white on the wing frontalis, p. 349. 



b. Tail-feathers, except sometimes the two central 



ones, uniform chestnut. 

 c'. Axillaries chestnut, 

 c". Chin and throat black. 



a'". A more or less distinct white patch on 

 the wing. 

 a*. Back black. 



a\ Length of wing 2-95 to 2-8 inches aurorea, p. 345. 

 6'. Length of wing 4'3 to 4-05 inches ei-ythrogastra, p. 347. 

 b^. Back slate-grey. 



c\ Forehead white. Tail 2-45 to 2-2 

 inches. Second primary between 



the fifth and seventh mesolenca, p. 338. 



dK Forehead gi-ey. Tail 2-85 to 2-6 

 inches. Second primary between 



the eighth and ninth hodgsoni, p. 344. 



6'". Xo white on the wing. 



c^. Back black ; belly chestnut. 



e'. Under wing-coverts chestnut; wing 



3-5 to 3'0 inches riifiventris, p. 342. 



f^. Lender wing-coverts chestnut and 



black ; wing 3'1 to 2-9 inches . . semirufa, p. 344. 

 d^. Back grey ; centre of belly nearly 



white phce^nicurns, p. 336. 



d" . Chin and throat chestnut ei-ythronota, p. 348. 



d'. Axillaries black. 



e". Centre of bellv nearly white, shading into 



grey on the flanks tifys, p. 339. 



/". Lower belly imiform chestnut erythroprocta, p. 341. 



(Females.) 



a. Tail dark brown ; or chestnut, with each feather 



except the two centre ones, more or less 

 broadly tipped with black. 

 a'. Tail, except the tw^o centre feathers, with 



the basal two thirds chestnut frontalis, p. 349. 



b'. Tail with the terminal two thirds or more 

 dark brown. 

 a". Base of outer tail - feathei-s chestnut; 



ofreater wing-coverts white schisticeps, p. 351. 



b". Tail-feathers uniform dark brown; greater 



wing-coverts brown with pale tips .... carideocephala, p. 353. 



b. Tail-feathers, except sometimes the two centi-al 



ones, uniform chestnut. 

 c'. Base of secondaries white aurorea, p. 345. 



