'678 C. H. HARDENBEBG. 



transparent. Head and part of thoracic segments chitinised, 

 the extent of this chitinous area increasing candad. Colour 

 •of body cartridge buff (XXX), diffused with pale pinkish buff 

 (XXIX), sternum of three thoracic segments dull blue- 

 violet (XXXVl). Head deflected ventrad, conical, bearing- 

 two slender, pointed, slightly diverging prongs, arising from 

 the vertex. Ventral aspect of head very convex. Antenna? 

 and trophi absent. A pigmented black spot ou each side 

 near the base of the prongs. 



Thorax small, partly chitinised, sterna of first and second, 

 sternum and pleuras of third segment membranous (text- 

 iig. 5, c). 'I'horacic legs rudimentary, represented bv a 

 minute papilla, surrounded by a chitinous ring, with larval 

 arrangement of setaj. Chitinised pai-ts of thorax smooth, 

 shiny. 



Abdominal segments large, membranous, surrounded hj a 

 ring oF downy hairs, mixed with scales (text-fig. 5, f, g). 

 These rings are incomplete on the first few abdominal 

 segments, being represented on abd. 1 and 2 by a paired 

 ventral and prespiracular tuft, on segments 3, 4 and 5 by 

 a paired ventral, a prespiracular and paired sub-dorsal tufts, 

 and become practically complete on segments 6 and 7. 

 On abd. 8 only the subdorsal tufts remain, while abd. 9 

 ^nd 10 are devoid of these hairs. Colour of hairs light buff 

 (XV), of scales yellow ochre (XV), the latter predominating 

 on the sixth and seventh abdominal segments. 



New Hanover, Natal, July 1915, bred by C. B. Hardenberg. 

 Type (alcoholic specimen) in collection Hardenberg. 



(9) Habits op the Imagos. 



The males are very active, quick and strong flyers, as is 

 indicated by the broad, massive thorax and slender, pointed 

 abdomen. At the moment the Avings are sufficiently expanded 

 and hardened, the moth takes flight in search of the female. 



While normally under ordinary plantation conditions the 

 :flight need be but short, as the females are near, the males 



