South African Butterflies. 345 



reduced to a state of uselessness soon after the butter- 

 fly's disclosure. The specimens of the genus Danais in 

 which I have found them have invariably been very 

 fresh individuals, with the abdomen still limp and 

 swollen from the pupa case. 



Sub-fam. Acr^in^. 

 Genus Ace^a, Fabricius. 



Acrcea Horta. 



Payilio Horta, Linn. S. N. ii. 755. 



The specimens forwarded by Mr. Bowker do not differ 

 from those found within the limits of the Cape Colony. 



Acrcea Neohule. 

 E. Doubl. Gen. Di. Lep. pi. xix. f. 3. 



These examples from Basuto-land (a $ and two ? ) 

 are smaller than the type specimens (two ? ) from 

 Congo, in the collection of the British Museum, and also 

 those specimens from Natal and the Cape Colony, in my 

 own collection and in that of the South African Museum. 

 The species is closely allied to A. Horta, and may be 

 said to occupy a position between that species and A. 

 Mahela, of Madagascar. From the former insect, it 

 constantly differs in having spots on the fore-winys in, 

 beyond, and below the discoidal cell,* and in the com- 

 plete black border of the hind-wings, which encloses the 

 spots of the ground-colour J its abdomen, in both sexes, 

 but especially in the c?, being much paler than that of 

 Horta, owing to the greater width (in some instances 

 confluence) of the pale ochreous markings. From A. 

 Mahela, judging from Boisduval's figure and description 

 in the Faune Entom. de Madagascar, p. 31, pi. vi. fig. 1, the 

 well-marked border of the hind- wings readily distinguishes 

 it, the Madagascarene Acroia having only small fuscous 

 spots at the extremities of the nervules; but the other 

 markings are almost identical in the two butterflies, 



* It shoiild here be noted that a $ Horta, from Oudtshoorn, Cape 

 Colony, in my collection, has both a cellular and three infra-cellular spots 

 faintly marked ; but it wants the small spots beyond the end of the cell. 



