TRANSFORMATIONS OF SOME SOUTH-AFEICAN LEPIDOPTEEA. 179 



Family ARCTIAD^l. 



Subfamily Arctian^e. 



Estigmene dissimilis Distant. (Plate VII. figs. 20, imago; 21, larva; 22, pupa 

 in cocoon.) 



Estigmene dissimilis Distant, A. M. N. H. (6) xx. p. 198 (1877). 



Larva. Head ferruginous, with a black A-shaped mark between the eyes ; body 

 black, with an indistinct dorsal line of brownish spots, the two spots nearest the anal 

 extremity paling to yellowish ; a brownish lateral line and an interrupted pale 

 ochraceous subspiracular line ; each somite bears several tubercles crowned with black 

 hairs of medium length, the spiracular line of tubercles bearing pale ferruginous hairs ; 

 spiracles white ; legs and claspers pale ferruginous. 



The young larva differs in having the head, legs, and claspers black, and no pale 

 ochraceous subspiracular line. Feeds on Vemonia gerrardi (Harv.), Natural Order 

 Composite. 



Pupa. Pale red-brown, formed in a web spun amongst the leaves of the food- 

 plant ; the imago emerged on Christmas Day, 1900, after a nonage of three weeks. 



The larva is not uncommon on the " veldt " at Belfast (6500 feet altitude) in the 

 Eastern Transvaal, but I saw only the one imago which I had reared. 



Estigmene atkopunctata, n. sp. . (Plate VII. figs. 23, imago, female ; 24, larva, 

 side view ; 25, larva, dorsal view; 26, pupa in cocoon.) 



Male. Head and thorax creamy white ; antennas black and pectinated ; four black 

 spots on the collar; a dorsal black stripe on thorax, and black stripes on the teguke; 

 abdomen pale fulvous, with rows of dorsal and lateral black spots : fore wing creamy 

 white, deepening to pale yellow on the costa ; the veins white and more or less defined 

 with black (this being a very variable character in different specimens) ; five black spots 

 above and below vein 1 ; a black spot on the outer margin at the end of each vein, and 

 an irregular number of black spots on the costa : hind wing white, with a black spot 

 at the end of the cell. 



Female. Differs in being much more heavily marked with black, vein 1 being broadly 

 bordered with black, the costal black spots being much larger, and the hind wing- 

 having three elongated black spots in the first median interspace ; antennas filamentous. 

 Exp. 46 millim. 



Larva. Head bright polished red ; body velvety black in some specimens, dark slaty 

 grey in others, with velvety-black rings of tubercles on the somites ; each somite bears 

 eight black tubercles, each surmounted by a tuft of brush-like hairs, dark grey dorsally, 



