16 MR. S. A. XEAVE ON BUTTERFLIES [Jan. 18, 



.spot on the margin. In Planema the former presence of this 

 nervule is indicated by a double internervular streak in area 1 c. 



On turning to the South American genus Actinote, I was 

 extremely interested to find that this nervule is more or less well 

 represented in all the species that I examined. Further, an 

 examination of the tarsus of the fore-leg showed that in mirifica, 

 though there are traces of two tarsal joints compared with one in 

 Actinote, they are very much more stunted than in other African 

 Acrseinse, including anacreon. In addition to the above anatomical 

 characters, we have the fact that the male of mirifica is, on the upper 

 surface, extremely like an Actinote both in pattern and coloration. 

 It is perhaps, therefore, fair to suggest that this interesting species 

 possibly represents a link between the Aerseinse of the Old and 

 New Worlds. 



Acrcea induna Trim. 



I took this species in fair numbers in many localities, especially 

 where there were large stretches of woodland. It was particularly 

 common in the Chambezi valley and Lake Bangweolo district in 

 May and June. It is on the wing at all seasons except apparently 

 during the height of the dry season in August and September, 

 though usually found sparingly even then. 



The wet-season females of this species also exhibit a tendency to 

 general duskiness. 



Until more evidence is forthcoming this species should, I think, 

 be kept distinct from A. bomba Grose-Smith. 



ACRCEA ACRITA. 



Acrcea acrita Hew. Exot. Butt. Acrcea, pi. iii. fig. 18. 



Acrcea ambigua Trim. P. Z. S. 1891, p. 70, pi. ix. fig. 11. 



Some confusion among systematists seems to exist with regard 

 to this striking and variable species, more especially between its 

 seasonal phases and geographical races. 



A very long series, taken on a wide area, demonstrates the 

 existence of two well-marked geographical races. 



(1) Acrcea acrita acrita Hew. 



The typical form is the Eastern race of this species, characterised 

 by having a narrow black apex to the primary from 2-4 rarely 5 

 millimetres wide. The spots on primaries are always well 

 developed. My series of this form, 120 specimens, comprises 

 every gradation between the extremely brilliant dry-season speci- 

 mens and the melanic wet-season ones. Extreme examples of the 

 wet phase are on the upper surface more or less uniformly dusky 

 in the female, while the male has the greater portion of the 

 secondaries suffused with coal-black, contrasting greatly with the 

 brilliantly coloured primaries. 



Thurau figures a male of the wet-season phase of this race in 

 the B. E. Z. for 1903, p. 129, pi. ii. fig. 8 as var. aquilia. and the 



