6. PENTHETRIA. 



217 



The change to the summer plumage seems to be effected by a change 

 of feather as regards the body, only the quills and tail-feathers 

 being moulted, but the first parts to get black are the upper and 

 under tail-coverts. Some males begin to show signs of change as 

 early as July, but it is not until November that the full black dress 

 is assumed. 



Hah. Nearly the whole of South Africa from the Eastern districts 

 of the Cape Colony to Natal and the Eastern Transvaal to the 

 Zambesi, and occurring also in South-western Africa and Angola. 

 Here the form called by Cassin Vidua concolor, in which the scarlet 

 neck-band is totally extinct, appears to be frequent, and a perfect 

 gradation between the necklaced P. aniens and the black form is 

 said by Dr. Cabanis to exist in Angolan specimens. The species 

 reoccurs in Senegambia, and at Sierra Leone the totally black form 

 has again been found ; the latter has also occurred in Equatorial 

 Africa at Wakkala {Emin Pasha). Shelley has examined the 

 Angolan series at Berlin and confirms the opinion of Dr. Cabanis. 

 Specimens with an orange instead of a scarlet necklace are not 

 uncommon. 



a. c? ad. St. 



b. (^ ad. sk. 



c. ^ ad. st. 



d. cf ad. sk. 



e. (5' ad. sk. 



/. c5' ad. sk. 



ff. cS ad. sL 



h. cf imm. sk. 

 i. S ad. sk. 

 k, I. (5 ad. sk. 



m, n. (S ad. sk. 

 o. (S ad. sk. 



p-t. (S ad. at juv. 



sk. 

 u, V. d; iv-y. 2 



ad. sk. 

 z. (S ad. ; a. S 



juv. sk. 

 b'. (S juv. sk. 



c' . tS ad. sk. 

 d'. (S juv. sk. 

 e'. cJ ad. sk. 

 f',ff'- c? juv.; $ 



ad. sk. 

 h'. (5 ad. sk. 



Africa. 



Afi'ica. 



S. Africa. 



Alice, S.E. Africa, March 15, 



1870 (E. L. Layard). 

 Eland's Post, S.E. Africa {T. C. 



Atmore). 

 Eland's Post, S.E. Africa (T. C. 



Atmore). 

 Kingwilliamstown, British Caf- 



fraria. 

 Natal. 

 Natal. 

 Weenen, Natal, Jan., Feb. {A. 



Ainold). 

 Durban, Natal {T. L. Ayres). 

 Drakensberg Mountains, Dec. 20 



{T.E. Buckley). 

 Newcastle, Oct. {E. A. Butler). 



Pinetowu, July, Oct. (T. L. 



Ayres). 

 Pinetown, Oct., Nov. (7*. L. 



Ayres). 

 Lower Umgeni River, Jan, 4 



(T. L. Ayres). 

 Pietermaritzburg. 

 Trausvaal (7". Ayres). 

 Macamac, E. Transvaal. 

 Eustenberg, E. Transvaal, Nov. 



(ir. Lucas). 

 Shupanga, Zambesi, May (Sir 



J. Kirk). 



Purchased. 

 Purchased. 



Dr. Lee [P.]. 

 Sharpe Coll. 



Sharpe Coll. 



Shelley Coll. 



Capt. Trevelyan 



Purchased. 

 T. Ayres [C.]. 

 Forbes Coll. 



Shellev Coll. 

 Shelley Coll. 



Shelley Coll. 



Shelley CoH. 



Seebohm Coll. 



Seebohm Coll. 



SheUey Coll. 

 Sharpe Coll. 

 F. A. Barratt [P.]. 

 Shelley Coll. 



Livingstone Exped. 



