THERETRA. 445 



Genital armature as in alecto, but tenth sternite rather 

 broader, more obtuse, less curved ; process of harpe less slender, 

 somewhat spoon-shaped, twisted. 



Hab. E. Himalayas (Assam) to China and Malaya. Mell 

 has bred the species in S. China, in open country, and the 

 descriptions which follow have been taken from his work. 



Egg. — Broadly ovoid, surface smooth and shining, colour 

 grass -green. Length 2 mm. ; breadth 1*4 mm. ; height 

 1*4 mm. 



Larva : — 



Final instar. Shape as in others of the genus ; horn long, 

 slightly down-curved. Surface dull and smooth. Colour 

 green ; ocelli on segments 5 to 11, rounded dorsad, flattened 

 ventrad, that on 5 green or blue above, yellow below, the 

 green or blue portion edged narrowly with yellow ; the ocelli 

 on 6 to 11 similar, but the green or blue upper half replaced 

 by pale greyish-brown ; horn sky-blue ; true legs reddish. 

 Length 88 mm. ; breadth 12 mm. ; horn 11 mm. 



Pupa. — Similar in shape to that of alecto ; tongue-sheath 

 in side-view shaped like a duck's bill seen from above ; antenna 

 slightly longer than fore leg, which reaches to about one-third 

 the wing-case, mid-leg to about middle ; a small coxal piece. 

 Surface dull and smooth except for sides of tongue -sheath, 

 which are rugose. Cremaster a dorsally convex, ventrally 

 concave, truncate prolongation of the dorsal surface of seg- 

 ment 14, ending in a short spine at each dorso-lateral angle of 

 the truncation. Colour pale reddish-brown ; head, tongue- 

 sheath and wing-case dotted and mottled with brown ; abdo- 

 men with a dark dorsal stripe and a subdorsal row of dark 

 dots ; venter bone -colour dotted and shaded with brown. 

 Length 63-68 mm. ; breadth 12-14 mm. ; tongue-sheath 

 projecting 6 mm. in front of head. 



Habits. — Food-plant : Melastoma sanguineum Sims, family 

 Melastomaceae. 



163. Theretra lycetus (Cram.). (Fig. 110 I, J, genitalia ; 

 PI. VI, figs. 1, 2, larva, fig. 3, pupa). 



Sphinx lycetus, Cramer, 1775, p. 96, pi. lxi, fig. D (Bengal ; Coro- 



mandel ; Ceylon). 

 Cheerocampa lycetus, Horsf. & Moore, 1857, p. 277 (N. India) ; 



Hampson, 1892, p. 87. 

 Theretra lycetus, Dudgeon, 1898, p. 412 (Sikkim, 1,800 ft.) ; 



Roths. & Jord., 1903, p. 779 ; Seitz, 1929, p. 567, t. 68 d. 

 Cheerocampa rosina, Butler, 1875, p. 248, pi. xxxvii, fig. 6 (Masuri). 

 Cheerocampa prunosa, Butler, 1875, p. 622 (Ceylon) ; Moore, 



1882, p. 18, pi. lxxxiv, fig. 2. 



Imago. — <$$. Head, thorax and abdomen olive-brown ; 

 a greyish-purple lateral stripe from head to base of costa of 

 fore wing, continuing as a white stripe to end of tegula ; 



