136 SPHINGID^E. 



28. Oxyambulyx sulbocellata (Feld.). (Fig. 21 D-H, genitalia; 

 PL VIII, figs. 7, 8, larva, fig. 9, pupa). 



Ambulyx subocellata, Felder, 1874, t. 76, fig. 3 (?) (Java). 

 Oxyambulyx subocellata, Roths. & Jorcl., 1903, p. 206 ; Seitz,. 



1928, p. 535, t. 61 d. 

 Ambulyx turbata, Moore, 1882, p. 11, pi. Ixxx, fig. 1 (9). 

 Ambulyx thwaitesi, Moore, 1882, p. 11, pi. Ixxx, fig. 2 {<$). 



Imago. — <$Q. Can be distinguished from all others of the 

 genus in India by the thinness of the thoracic stripe over the 

 tegula and by the series of subbasal spots on fore wing upper- 

 side. Bcdy reddish-brown, thoracic stripe very thin, olive- 

 green, broken before joining a much broader transverse band 

 at base of abdomen, the latter broken on dorsum ; no dorsal 

 stripe on abdomen. Fore wing with a series of four subbasal 

 spots, green edged with white, the costal spot the largest. 

 Fore tibia with a few spines at and near apex exteriorly ; 

 hind tibia 1 to 2 mm. longer than, and longer apical spur 

 three-fifths length of, first tarsal segment. 



(J. Fore wing yellowish -grey with a violet gloss, darkening 

 to ochreous-brown beyond the postmedian line, submarginal 

 area earth-yellow. Hind wing yellow, very pale on costa y 

 cilia pure white, brownish at ends of veins. 



$. Fore wing reddish-brown. Hind wing rust-colour. 

 cJ$. Underside yellowish. Expanse : £ 100 mm., 2 110 mm. 



<$. Eighth abdominal sternite (fig. 21 E) with an obtuse, very 

 faintly sinuate mesial lobe ; edge of lobe internally incrassate 

 to two tubercles which stand closely together, not being visible 

 in a ventral view. Harpe (fig. 21 F) extending basally from 

 ventral to dorsal edge of clasper, this ventro-dorsal ridge low,, 

 produced at end into a long pointed process which evenly 

 curves ventrad ; generally a tooth at base of this hook : 

 ventral part of harpe produced distad into an irregularly 

 spatulate process, of which the upper edge is dilated into 

 a large triangular tooth. Penis-sheath (fig. 21 G) without 

 external armature ; duct with a ribbon-like organ which is 

 densely beset with minute, sharply pointed teeth. Tenth 

 sternite separated into two lobes which are somewhat widened 

 at end and incline towards each other. 



2. Eighth tergite (fig. 21 H) mesially less chitinized than at 

 sides but not membranaceous, shallowly sinuate. Vaginal 

 cavity large, the ridge before it irregularly folded, mesially 

 sinuate, continued later ad to the base of the tergite, lateral part 

 higher, hollow at its ventral end, forming a kind of roof over 

 end of lower ventral ridge. 



Hab. E. Himalayas, S. India, Ceylon and the Andaman 

 Islands, extending to S. China and Malaya. We have bred 

 the species in the E. Himalayas and S. India, where it occurs 



