THERETRA. 457 



and within the yellow iris are two crescents, one at the top 

 of electric-blue, and a purple one at the bottom ; remaining 

 ocelli smaller, oval, the oblique, very pale blue pupil edged 

 narrowly above with dark green, below by a purple crescent 

 and then dark green ; these ocelli lying on obscure pale 

 yellowish oblique stripes ; horn long, thin, tapering gently 

 to near tip where it thickens slightly to a bifid tip, the 

 two arms shortly conical. 4:th instar. Segments 4 and 5 much 

 swollen ; head grass-green ; body pale grass-green covered with 

 a chalk-like bloom ; segments 6 to 11 with short thick grass- 

 green stripes across the secondary rings ; a narrow dark green 

 dorsal stripe ; ocellus on 5 large, nearly round, coloured as in 

 the 3rd instar, but the pupil of a darker shade ; other ocelli 

 smaller, elongate- oval, very oblique, lying at the same angle 

 as the oblique stripes, pale yellow with a crescent of purple 

 below, the whole edged narrowly above and below with sap- 

 green ; obscure yellowish oblique stripes interrupted by the 

 oblique ocelli, except that on 11 and 12, which runs forwards 

 and downwards from base of horn. Horn long, thick at base, 

 tapering evenly to tip, which is slightly thickened, basal 

 two-thirds straight, distal third gently up-curved; basal third 

 orange, rest translucent pale green ; surface shining and 

 covered with self-coloured, spine-like tubercles. 



5th instar. Head with vertex depressed ; true clypeus 

 between one-third and one-half length of head, triangular ; 

 false clypeus hardly visible ; labrum and ligula large, ligula 

 broad kidney-shaped ; surface of head smooth and dull. 

 Body smooth and dull, shaped as in others of the genus, 

 segment 5 much swollen. Horn short, tapering gently to 

 near tip, then abruptly to a blunt point, gently down- curved ; 

 surface dull and sparsely tuber culate. 



Green form : head dull green ; labrum green ; ligula 

 brownish ; basal segment of antenna green, other segments 

 claret- colour ; mandible green, a bright yellow band before 

 tip which is reddish-brown. Body greyish -green, segments 5 

 to 12 with many short brown stripes across the secondary 

 rings, closer together in lateral area, developing into spots 

 below the spiracles ; a narrow, dark blue dorsal stripe on 

 2 to 5, continuing diffuse and paler to base of horn ; a large 

 round dorso-lateral ocellus on 5, with a longitudinal, irregularly 

 oval black pupil, edged narrowly with electric -blue, then 

 broadly with green of the body-colour ; the green edged broadly 

 below, narrowly elsewhere, with primrose-yellow; above and 

 below this a narrow white crescent separated from the yellow 

 by a narrow line of the body-colour ; the whole edged fairly 

 broadly with black ; this ocellus closely resembles that on 

 segment 5 of T. lycetus ; ocelli on 6 to 11 elongate -oval, placed 

 obliquely in the same line with the oblique stripes, primrose- 

 yellow edged narrowly with green ; ill-defined whitish oblique 



