ARICHALCA. 95 



This is the commonest and most widely-distributed Burnet 

 in the British Isles, and it is likewise one of the commonest 

 species on the Continent. There is a large southern form 

 named A. transalpine^ (Esper). 



GENUS ARICHALCA. 



Arichaka, Wallengren, GEfv. Vet. Akad. Forh. Stockh. xv. 



p. 137 (1858) ; id. K. Vet. Akad. Handl. Stockh. (2) v. (4) 



p. 15 (1865). 



The South African Anthrocerina, though not numerous in 

 species, have been divided into several genera, differing slightly 

 from Anthrocera. In Arichaka the fore-wings are marked with 

 red transverse bands bordered by black lines, instead of being 

 spotted, or longitudinally streaked. Three species from South- 

 eastern Africa have been referred to the genus Arichaka. 

 Except the Mediterranean species of true Anthrocera, all the 

 African Anthrocerincz and Adscitina appear to be found in 

 Southern or Eastern Africa, and of the latter, only one or two 

 species have been recorded from tropical regions. In West 

 Africa these Sub-families do not appear to be found at alL 



ARICHALCA ERYTHROPYGA. 



(Plate LXXXI. Fig. 2.) 



Arichaka erythropyga, Wallengren, Wien. Ent. Mon, iv. p. 38, 

 no. 23 (1860) ; id. K. Vet. Akad. Handl. Stockh. (2) v. (4) 

 p. 15, no. 2 (1865). 



Zygczna negamica, Walker, List Lep. Het. Brit. MUS.XXXI. p. 61 

 (1864). 



This species was brought from "Eastern Caffraria"* by Wahl- 

 berg, and from Lake N'Gami by Andersson. Both Wahlberg 

 and Andersson were well-known explorers and hunters in their 

 * This probably means the Transvaal of the present day. 



