38 Dr. G. B. Longstaff on 



Dr. Dixey and I took a few specimens in South Africa, 

 at Ladysmith and the Victoria Falls, but it is a very rapid 

 flyer, so that a small proportion only of those seen is actually 

 secured. 



Its area of distribution includes Abyssinia, Somaliland, 

 the Victoria Nyanza, German East Africa, Rhodesia, 

 Matabel eland. Natal and Angola. 



52. Teracolus hetaera, Gerstaecker. 



Mr. Loat took a female of this species near Kaka [Lat. 10° 

 40' N.], which was at first thought by Dr. Dixey (13. p. 146) 

 to be a yellow form of the female of T. fhlegyas. I have no 

 other record for the White Nile. 



Its range extends from the Victoria Nyanza to Mombasa. 



53. Teracolus phlegyas, Butler. 



The synonymy of this species is puzzling. Butler called 

 its dry-season form jalone, and the male of the same 

 coliagenes. Again T. imperator, Butler, is indistinguishable 

 from phlegyas. According to Trimen phlegyas is ione, 

 Godart, in spite of the fact that Godart's description of 

 ione agrees closely with the Natal insect. Trimen lays stress 

 on the fact that Natal was not known to white men in 

 Godart's day. [He died in 1823.] Dixey, however, con- 

 siders the Natal insect to be speciosus, Wallengren [= erone, 

 Angas], of which the dry-season form is jobina, Butler, the 

 wet-season form ione, Godart. 



The female is very variable and extremely different from 

 the male. The types were taken by Petherick on the 

 White Nile. Capt. Dunn met with it on the Bahr al-Zarafa. 

 Loat took a typical male near Kaka [Lat. 10° 40' N.]. 

 Selous took two females and a male at Tawfikiya [Lat. 

 9° 25' N.]. The Swedes took a male on Abba Island [Lat. 

 13° 22' N.], also a female near Kaka. 



In 1912 I took in all ten specimens, viz. two males at 

 Kiro [Lat. 5° 22' N.], two males at Mongalla [Lat. 5° 12' 

 N.], two males and a female at Gondokoro, and three 

 males at Rejaf wooding station. 



Thus T. phlegyas, while it ranges over 8|° of latitude 

 along the White Nile, would appear to be commonest 

 high up the river, above the Sadd. 



Outside our limits this lovely butterfly is met with in 

 Abyssinia, British East Africa, German East Africa, 

 Rhodesia, Matabeleland, Natal, Damaraland and Senegal. 



