OXY AMBULYX . 1 27 



green with a blurred white dorsolateral stripe from 2 to base 

 of horn, this stripe broadest at the hinder margin of 4 ; the 

 line of long tubercles is situated on this stripe ; they are 

 white on 2 to 4. salmon-red on 5, and still more red on 6, 

 where the red colour expands backwards and downwards 

 into a triangular patch reaching from just below the dorso- 

 lateral stripe to the level of the spiracle at trie hind margin 

 of the segment ; a corresponding larger, rhomb-shaped patch 

 on segment 7 purplish-red, with salmon-coloured centre and 

 some salmon-coloured spots edged with purple ; similar 

 patches, decreasing in size backwards, on segments 8 to 11, 

 segment 12 being without any patch ; the oblique stripes 

 whitish, best defined on the posterior segments, that on 

 segment 5 being obscure, edged above with sap-green, and 

 interrupting the dorso-lateral stripe without extending above 

 it. Horn bluish-green. Legs yellowish-grey ringed with 

 rusty-brown ; prolegs and claspers green bordered with rusty- 

 brown. Spiracles oval, pale blue with a slightly raised, 

 paler- coloured central slit and a narrow dark rim ; the 

 Avhole situated on a smooth, flat patch of the body colour. 

 Length 100 mm. ; breadth 13 mm. 



Pupa. — Shape much the same as in others of the genus. 

 Surface shining, weakly pitted ; the wing-cases finely, trans- 

 versely lined, the veins somewhat prominent and slightly 

 beaded, the costal edges raised above the tongue and more 

 strongly beaded ; a slight keel along dorsal line of segments 4 

 and 5 ; ante-spiracular ridges on 9 to 11 very faint. Cremaster 

 stout, conical, rugose, longitudinally ridged, the tip short, 

 either a simple point or extremely minutely bifid. Colour 

 dark chestnut. Length 60 mm. ; breadth 15 mm. 



Habits. — Food-plants : Quercus Linn. ; Castanoptsis Spach., 

 family Fagaceae ; Poupartia Fordii Hemsl., family Anacardi- 

 aceae ; and Canarium album Raeuschel, family Burceraceae (in 

 China) . Pupal cell lined with silk-slime. The time spent in the 

 pupal state varies from 12 to 32 days in the summer, and in 

 the winter, when the pupae hibernate, from 153 to 207 days. 

 The habits of the larva and moth are similar to those of others 

 of the genus, but the moth is excitable and flies readily when 

 touched. 



25 a. Oxyambulyx substrigilis auripennis (Moore). 



Ambulyx auripennis, Moore, 1879 A, p. 388 (Ceylon) ; id., 1882, 

 p. 11, pi. lxxix, fig. 1 (o*), 1 a (larva), 1 b (pupa). 



Oxyambulyx substriqilis auripennis, Roths. & Jord., 1903, p. 202 ; 

 Seitz, 1928. p. 534. 



Ambulyx substrigilis, Hampson, 1892, p. 77 (non Westw.). 



Imago. — $. Body below deeper yellow than in O. s. sub- 

 strigilis. Markings of wings less heavy ; submarginal black 



