G2 MR. S. A. NEAVE ON BUTTERFLIES [Jan. IK. 



Belexois severina Cram. 



A very common species which, although it comes into the open 

 at times, is much more addicted to shade than its allies. 



Belenois mesentina Cram. 



Another ubiquitous species which is on the wing throughout the 

 year. 



Belenois crawshayi Butler. 



I took at Kambove, vii., the upper Kafue river, x., Lake 

 Bangweolo. vi.. vii., a good many individuals, some of which, 

 especially the Kambove ones, are certainly referable to the above 

 species. Until the whole zochalia group of Belenois is more 

 thoroughly worked out, it is not possible to make any definite 

 statements, but it would seem likely that B. formosa Butler will 

 prove to be the wet phase of crawshayi, and that Butler was 

 in error * in assigning to crawshayi as its dry phase his own 

 diminuia. Amongst my material there would appear to be also 

 a small species allied to diminuta, but probably distinct from it. 

 In the absence of more material and of any females I do not think 

 it advisable to describe it. 



B. crawshayi usually frequents open grassy country and may 

 not unfrequently be taken at damp mud. 



Belenois crawshayi, f. lata, f. nov. (Plate III. fig. 3, S .) 



Allied to craioshayi Butler, but differing chiefly in larger size, 

 especially in the great breadth of the primaries and elongation of 

 the secondaries. The markings are similar to those of crawshayi, 

 but all the specimens have a more or less well-marked basal flush 

 of orange-yellow on the underside of the primaries, a character 

 which seems at least uncommon in that species. A single male 

 from near Kambove, iv., which appears to be the wet phase of 

 this form, is slightly smaller, and somewhat resembles the type of 

 B. formosa Butler, which, as has been just stated, is possibly the 

 wet phase of crawshayi. It is, however, a considerably larger 

 insect with much heavier markings on the upperside of the 

 secondaries, the under-surface markings being less extensive but 

 much better defined. There is also a strongly marked orange 

 streak on costa and a second more yellow one beyond end of 

 costa, also faint intermarginal patches of very pale yellow around 

 outer margins. Length of primary 30-35 mm. 



Type 6 in the British Museum : Lufupa river, Lualaba 

 district, U.x.07. 



Cotypes in the British Museum and Hope Coll., Oxford. 



Described from six males, all dry-season, Lufupa and Lubudi 

 rivers, x. One male, wet phase, upper Dikulwe valley, iv, 



Belenois dentigera Butler. 



I captured three specimens only of this species : a pair from the 

 . * P. Z. S. 1806, p. 851. 



