OXYAMBULYX. 137 



locally in forests of heavy rainfall at about 4,000 feet and below 

 1.000 feet elevation respective^. 



Egg. — Similar to that of O. s. aglaia, but slightly smaller. 



Larva : — 



Final instar. Very similar to that of 0. s. aglaia, but body 

 rather more slender and horn longer and thinner. Head 

 triangular, three times as long as broad, vertex rounded, 

 a low, conical tubercle on apex of each lobe ; true clypeus not 

 one-third length of head ; false clypeus very narrow, apex 

 acute : labrum short, slightly broader than long ; ligula 

 open horseshoe-shaped, each side produced into a long arm, 

 length three-quarters that of true clypeus ; eyes arranged as 

 in others of the genus. Surface of head slightly shining, very 

 obscurely and irregularly transversely wrinkled, covered very 

 sparsely with minute setiferous tubercles. Body dull; a trans- 

 verse row of small conical tubercles along each secondary ring, 

 reaching the dorso-lateral line ; a dorso-lateral row of larger 

 tubercles from segment 2 to segment 11 ; similar large tubercles 

 on oblique stripes, extending backwards across dorsum. 

 Horn set sparsely with large tubercles and closely with small, 

 pointed tubercles. 



Coloration. — Head glaucous bluish-green ; a narrow, double,, 

 yellowish dorsal stripe from vertex to apex of clypeus and 

 from vertex to nape ; a broader white stripe separating 

 face from cheek ; tubercles white ; labrum glassy-bluish in 

 colour ; ligula reddish-brown ; basal segment of antenna 

 green, other segments reddish ; mandibles green, tip reddish- 

 brown. Body grass-green on dorsum between the dorso- 

 lateral lines of tubercles ; the tubercles yellow or rising from 

 yellow dots, except those of the dorso-lateral line on seg- 

 ments 3 to 5, which are white ; below the dorso-lateral lines 

 body paler green, strongly suffused with glaucous and dotted 

 with white ; seven narrow oblique stripes on 5 to 11, that on 

 11 white and running back to base of horn ; the others white 

 with white tubercles on them below the dorso-lateral line of 

 tubercles, and extending backwards as a line of yellow tubercles 

 over the dorsum of each segment behind and then on to the 

 dorso-lateral line, forming crosses of tubercles ; a large 

 maroon- coloured spiracular patch on 3 and 4 ; a maroon- 

 coloured patch above the dorso-lateral line on hind margins 

 of 4 to 10, that on 4 small, the rest increasing in size to 7, 

 where it runs forward along the whole length of the dorso- 

 lateral line to the front margin and upwards along that margin ; 

 large maroon-coloured patches in front of bases of prolegs 

 and on venter of 12, sometimes spreading across venter from 

 spiracle to spiracle. Horn green, paler below and with 

 a blackish tip. Legs red with base green : prolegs green, 



