THERETRA. 435 



Larva : — 



1st instar. Honey-yellow, green after feeding ; horn black, 

 long, straight, minutely bifid. 2nd instar. Head and body 

 yellowish-green ; a narrow yellow dorso-lateral stripe ; 

 a black ocellus, ringed with white, on segment 5. 3rd instar. 

 Head and body pale green, with short, dark green lines ; 

 a dark green dorsal stripe ; a pale dorso-lateral stripe from 

 segment 6 to base of horn ; an ocellus on 5 enamel-white 

 with a large black pupil, in the middle of which is a longi- 

 tudinally elongate-oval blue spot, the whole edged narrowly 

 with dark green above, black below ; a much smaller ocellus 

 on 6 and ocelli of decreasing size on 7 to 11, white edged above 

 with black ; horn long, straight, black with base orange 

 except for a brown dorsal spot ; end red with the extreme tip 

 white. 4th instar. Head green, body grass-green dotted with 



Fig. 112.— Theretra clotho clotho (Drury). 



pale yellow ; dorso-lateral stripe yellow ; ocellus on 5 yellow 

 with green pupil, in which is a horizontal blue line, the whole 

 edged narrowly with black ; horn long, thin, minutely bifid, 

 slightly up- curved, base blood-red, then fuscous shading to 

 black, tip yellow or pink. The ground-colour varies a good 

 deal and there may be blind ocelli on segments 6 to 11. 



5th instar. Head slightly shining, covered sparsely with 

 minute rounded tubercles ; clypeus one-half length of head, 

 apex very acute, basal angles slightly rounded ; apex of false 

 clypeus forming an arch over that of true clypeus ; labrum 

 one -third as long as and as broad as clypeus, longitudinally 

 corrugate ; ligula longer than labrum, elongate kidney-shaped ; 

 cutting-edge of mandible slightly waved ; eyes 1 to 4 in 

 a sharp curve, 6 in line with 3 and 4 ; 1 to 4 equidistant, 

 6 twice as far from 4 as 4 is from 3 ; 5 forming an equilateral 

 triangle with 4 and 6 ; all of equal size. Body dull and smooth, 

 shaped as in others of the genus. Horn of medium length, 

 sharply down- curved, stout at base, tapering gentlv to near 



2f2 



