138 SPHINGLDJS. 



anal flap green edged with orange ; claspers bluish, edged with 

 orange. Spiracles oval, flush, bluish, the bluish slightly 

 suffused with pale brown inside the rim, the rim a fine dark 

 maroon ; the spiracles of segments 2 and 12 larger than the 

 rest. Length 86 mm. ; breadth 11 mm. ; horn 15 mm. 



Pupa. — Similar to that of 0. substrigilis aglaia, but more 

 slightly built ; sometimes a small coxal piece. Surface 

 shining ; body, except for the hind bevels of segments 8 

 to 10, roughened with irregular wrinkles, corrugations and 

 groups of tubercles, nowhere prominent ; in addition the 

 abdominal segments shallowly pitted ; a narrow, smooth 

 dorsal line on thorax ; veins of wings prominent, wing-cases 

 transversely lined ; sculpturing on segment 4 two deep 

 transverse channels on each side, one close to and parallel 

 with front margin and one close to and parallel with the hind 

 margin, having a smooth, raised, flat area between them, 

 the dorsal line carinate ; segment 6 also dorsally carinate ; 

 .ante-spiracular ridges on 9 to 11 ; those on 9 consisting of very 

 narrow, shining ridges separated by eight deep, narrow, 

 parallel, smooth channels ; similar but fewer and shorter 

 ridges on 10 and 11. Spiracle of 2 indicated by a lappet 

 on the front margin of 3, with the hind margin of 2 curved- 

 emarginate and thickened in front of it ; remaining spiracles 

 oval, flat, with a narrow raised slit. Cremaster wedge-shaped, 

 triangular from dorsal view, base broad and undercut, laterally 

 compressed, as high as broad except at tip where it ends in 

 a smooth, low. short ridge dividing into two short diverging 

 teeth ; the surface (except for the teeth at tip) very rugose 

 and wrinkled. Colour dark chestnut except for hind bevels 

 of segments 8 to 10, which are much paler in colour ; spiracles 

 black with central slit chestnut ; cremaster nearly black. 

 Length 50 mm. ; breadth 13 mm. in £ ; 46 mm. and 11-5 mm. 

 in ?. 



Habits. — Food-plants : Odina wodier Roxb. and Buchanania 

 latifolia Roxb., both of the family Anacardiacese, in India, and 

 Canarium album Raeuschel, family Burseraceae, in China. The 

 resting position is the same as for others of the genus. They do 

 not change colour much before pupation, only becoming duller 

 in shade. Pupation in an ovoid cell about 6 inches underground. 

 In the Kanara District larvae are fairly common during the mon- 

 soon months, July and August, and there is a second brood in 

 November. The monsoon larvae produce moths about three 

 weeks after pupation, but moths from the November larvae 

 do not come out till the following June. The moths rest 

 in the same position as others of the genus. They are very 

 sluggish during the day and unwilling to move, but fly well 

 at night. All attempts to induce them to pair in captivity 

 failed. 



