Explanation of Plates. 559 



dry phase (compare this figure with Figs. 6, 7, and the 

 somewhat intermediate Fig. 8). 

 Fig. 6. Precis archesia (J, under-side of wings; Salisbury, 5000 

 feet, captured April 30, 1899. The mottled browns and 

 greys of the under-side are very markedly different from 

 the uniform dark brown of the wet phase. Great varia- 

 tion in these mottled tints occurs in different individuals, 

 harmonizing Avith the varied appearance of rocks, being 

 at the same time dead-leaf-like. 



7. Precis archesia ^ , under-side of wings ; Berea, near Durban, 



Natal, captured April 5, 1896, by Mr. D. Chaplin. In 

 this variety of archesia the ground-colour is comparatively 

 immottled, and to this extent transitional towards the 

 pelascjis form. This difference upon tlie under-side corre- 

 sponds with a slight approach in the same direction on 

 the uppei'-side, where the deep red-brown band is broader 

 and more continuous than is usual in typical archesia. 



8. Precis archesia ^ , undeT-side o{ wings ; variety distinctly 



transitional towards the pelasgis (wet) phase ; Malvern, 

 800 feet near Durban, Natal. This specimen was cap- 

 tured in coitu with a 9 of typical pelasgis, Oct. 7, 1897. 

 The intermediate character is seen in the conspicuous 

 broad light band as well as in the unmottled ground- 

 colour. Comparing this with Figs. 5 and 6, it is seen that 

 in spite of this distinct tendency towards jjeZasgfis, the speci- 

 men represented in Fig. 8 is still well on the archesia side of 

 intermediate, and would doubtless be well concealed with 

 its wings closed. The character of the surface of both 

 wings outside the broad band is especially unlike pelasgis., 

 as is the gradual transition of the outer border of the 

 band itself into the ground-colour. The upper-side of 

 the specimen here represented is shown on Plate XII, 

 fig. 5, and that of the 9 pelasgis with which it was in 

 coitu on Plate XII, fiir. 4. 



