60 TEBACOLUS. 



Secondaries sand3'-pink covered with brown vermiculations ; the transverse discal 

 band reddish-brown with a border of ochre yellow on the hind-margin ; a yellow spot 

 above the black discoidal spot. Expanse 2 inches. {Spec c.r. Loaiu/wa Valley Forest ; 

 H. Crawdai/; Mi's. Brit.) 



H.ABiTAT. Nyasa Land. — Lake Nyasa (Si/i/oi/s ; Godman-Salciii Coll. ; Mas. Brit.). 

 Deep Bay. ^larch 9, 1896 ; Loangwa Valle}^ Forest, August 30, 1 .s95 ; Ntonga, Loangwa 

 River, September 13, 1895 {R. Crawshai/ ; M/fK Brit. ; Butler, P. Z. S. 1896, p. 836). 

 Shire Eiver {Bates Coll. ; Mas. Godman-SaJvin Coll.). Lake Mweru district, Salim bin 

 Najimb, Konde, January 18, 1893 (7?. Craw^hay; Mus. Brit.; Butler, P. Z. S. IS 93, 

 p. 664). Mashoxa Land.— Salisbury, June 18, 1898 {Gi'i/ Mardall; Mus. Brit.). 

 Delagoa Bay [Mi's. Bothschild). Henga, W. of Lake Nyasa, January "25, 1895 

 (i?. Craicsluti/; Butler, P. Z. S. 1896, p. 127). 



Acting under Dr. Butler's advice, I have given a specific name to the 

 Nyasa-Land form of T. imperotor. The differences of this race appear to be 

 fairly well pronounced, and in 1897 Dr. Butler {I.e.) virtually admitted that the 

 Nyasa-Land Teraeolus ought to be separated. I reproduce Dr. Butler's remarks under 

 the heading of T. plile(/i/as (Ann. and Mag. Nat. Hist. (6) xx. p. 396): " The types 

 of T. plile^i/(is are all from the White Nile, and I am not at all sure that the larger 

 and more heavily marked types which occur considerably further to the south ought 

 not to be kept distinct from them ; but until they have been bred it will, perhaps, 

 be safer to regard them as mei-e local races of one widely distributed species. At 

 the same time it is doubtful whether the species occurs all along the line from the 

 White Nile to Nyasa Land or thence southward to Delagoa Bay; and if a name had 

 already been given to the more southern type, I should certainly have regarded it worthy 

 of respect. As it is, there is so much general resemblance between the wet-season 

 male from Nyasa and the dry-season male from the White Nile in the pattern and 

 colouring of the upper surface, that I hesitate to insist upon keeping them separate." 



EXPLANATION OP THE FIGURES OF T. difficilis. 



Plate 20, Fig. 1. <J Deep Baj-, Nyasa Land (7i'. Craicshaij ; .Vvs. Brit.). Type of species. 



,. la. Underside of Fig. 1 . 



„ lb. $ Ijs^ieyiyasa. {Godman-Salvin Coll.; Mus. Brit.). 



., Ic. Underside of Fig. lb. 



,, Id. $ Uelagoa Bay {Jfus. Rothschild). 



,, le. 3 Shire River (Godman-Salvin Coll. ; JIus. lirit.). 



„ If. Underside of Fig. le. 



„ Ig. 5 Loangwa Valley Forest (Ii. Craivshay : Mus. Brit.). 



,, Ih. Underside of Fig. l". 



