( clxxvii ) 



larvae, drawings of which were shown, are quite distinct, 

 both superficially and structurally. They feed on different 

 leguminous trees — the manica form on an " acacia " called 

 in Chikaonde " musasi," the phaeus form on an "acacia" 

 called " kabulwebulwe." 



The pupae also show distinctive characters ; these are small 

 but quite constant. 



The experiments were conducted at Solwezi, Kasempa 

 District, in South Central Africa, close to the Katanga bound- 

 ary. The phaeus form had not been observed further south, 

 but manica had been taken sparingly near to Broken Hill and 

 Kashitu. 



The exhibitor expressed the opinion that the two species 

 were undoubtedly distinct. 



He also exhibited a drawer of Nymphaline butterflies and 

 details of their life-history. The first two species were Hama- 

 numida daedulus, Fabr., and Crenidomimas Concordia, Hopff., 

 their pupae, and drawings of their larvae. The larva of 

 Crenidomimas, previously unknown, was shown to be exceed- 

 ingly similar to the well-known Hamanumida; their food- 

 plants are different. Diestogyna iris, Auriv., was mentioned 

 as having the same type of larva, of which, unfortunately, 

 no drawing had been made. It feeds upon the big-leaved 

 " musuku " tree. In the same exhibit was a bred series of 

 Pseudacraea poggei, Dewitz, its pupae, and figures of the 

 larva. Previously undescribed, the larva and pupa are of 

 interest as showing such very close resemblance to the con- 

 generic species. The larvae, though found in some numbers, 

 are restricted to one kind of shrub — " tandakatali " (Chikaonde). 

 The pupae are very freely parasitised by a small Tachinid fly. 

 All the material of the second exhibit was from South Central 

 Africa — either N.W. Rhodesia or the Katanga. 



Prof. Poulton and Lord Rothschild commented on this 

 exhibit. 



A local race of Precis octavia. — -Lord Rothschild 

 exhibited a series of a local race of Precis octavia From Teinbora, 

 Bahr-el-Gazal, and drew attention to the extraordinary number 

 of intermediate specimens among the series of the dry-se ison 

 form — 14 out of 16. He also exhibited a series of wet- and 



PROC. ENT. SOC. LOND., V. 1918. M 



