SOUTH AFRICAN BAGWOBMS. 169 



fissure wliicli reaches to the posterior edge of the metathorax, 

 and by a transverse suture from the vertex along what 

 corresponds to the posterior edge of the antennal cases down 

 as far as the posterior edge of the metathorax. The anterior 

 part of the pupa thus comes off in three roughly triangular 

 pieces, the pieces breaking off transversely along the inter- 

 segmental incisions. Through the slits thus formed we find 

 extending a ribbon of strongly woven silk, which reaches 

 down through the neck of the bag. This ribbon is cream- 

 coloured, the threads appear to be cemented together, and 

 it is quite distinct from the mass of loosely woven, white, 

 fluffy silk which fills the remainder of the neck of the bag 

 and the space around the chrysalis. It is absent in the bags 

 containing male pupae, and therefore it would appear to have 

 some sexual significance. 



When the male moth is ready to emerge the pupa splits 

 behind the head, around the back of the antennal and leg- 

 cases, and a median split occurs down the prothorax and 

 mesothorax. The male pupa protrudes from the bag as far 

 as the end of the 5th abdominal segment, and usually at an 

 angle. 



Male. — The male moth is of about the size of that of 

 A. junodi, but it has the thorax and abdomen covered with 

 white hairs. The wings are transparent, with a dark line 

 along the costa. 



Female. — A description of the female is here given of the 

 one specimen reared at New Hanover from Durban material, 

 since it has not been previously described. 



Length 20 mm., body cylindrical, tapering from the 4th 

 abdominal segment towards the head, abruptly truncated at 

 posterior end from the 7th and 8th abdominal segments. 

 Colour of body pale dull green-yellow (XVII), ventral side of 

 3rd abdominal segment diffused with deep slaty brown (L), 

 especially at the sides, which colour becomes more general 

 and intensified on the ventral and lateral aspects of the 2nd 

 and 1st abdominal and the 3rd thoracic segments. Posterior 

 abd. segments 7 and 8 densely covered with matted hairs. 



