CELERTO. 401 



rounded or obtusely acuminate. Clasper broadly sole-shaped ; 

 friction-scales numerous and in most species small ; harpe 

 (fig. 101 A) ending in a thin, more or less curved, simple, 

 tapering process. Penis-sheath (fig. 101 B) : dorsal apical 

 edge incrassate, dentate, produced at the left side into a short 

 process ; the length of the brim-like incrassation, as well as 

 the dentition, slightly different in the various species. 



" ?. Eighth tergite sinuate mesially. Vaginal plate obtusely 

 triangular, without special armature ; orifice large, mesial " 

 (Roths. & Jord., 1903). 



Egg. — Nearly spherical, surface shining, colour green. 



Larva. — Tapering from segment 5 front ad, but not so 

 sharply as in other genera of the subfamily ; horn of medium 

 length, down-curved. Surface dull and smooth ; horn shining 

 and tuber culate. Colour green or blackish, with a series of 

 blind dorso-lateral ocelli on segments 2 or 3 to 12 or a dorso- 

 lateral stripe on the same segments. 



Pupa. — Base of tongue feebly prominent in most species, 

 more prominent in lineata, not keeled. Antenna and fore leg 

 reaching to about one-half length of wing-case ; a long 

 narrow coxal piece. Surface moderately shining, wrinkled 

 and pitted. Cremaster triangular, ending in a cylindrical, 

 shortly bifid shaft. Colour brownish or yellowish with darker 

 markings. 



Habits. — The food-plants belong to the families Euphorbi- 

 acese, Rubiaceae and Onagraceae. The eggs are sometimes laid 

 in small batches, and the larvae are then gregarious. They 

 eject fluid from the mouth when alarmed. The larvae become 

 darker before pupation, which takes place in a rough cocoon 

 on the surface. The moths rest with the wings held sloping 

 slightly downwards, and do not usually appear on the wing 

 till dusk. 



Hab. Cosmopolitan; absent from Malaya and Papuasia, 

 but reappearing in Australia. Five Indian subspecies. 



Key to the Species. 



Imagines. 



1 . Pulvillus present 2. 



Pulvillus vestigial, represented by a small 



process or flap 4. 



2. Fore wing : median band pale yellow, 



sharply denned ; veins traversing brown [(Esp.), p. 408. 



post-discal band pale C. lineata livomica 



Veins not pale 3. 



3. Costal area of fore wing brown from base to 



apex, sharply defined ; hind wing yellow, [p. 407. 



with a red patch behind middle C. gallii gallii (Rott.), 



Costal area of fore wing pale, with a large 



dark patch beyond apex of cell ; a sharply [(Walk.), p. 408. 



denned broad basal band C. nicsea lathyrus 



VOL. V. 2d 



