622 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXI. 



postdiscal and subterminal black spots as on upperside but much larger. 

 In some specimens this grey area is much restricted, the subterminal spots 

 merge completely with the terminal and form a comparatively broad black 

 terminal band. Antennae, head, thorax and abdomen blackish-brown. 

 Female very similar, but the internervular streaks on the forewing paler, 

 extended into the cell both on the upper and undersides. Hindwing with 

 the pale blue of upperside and the corresponding grey area on the under- 

 side paler, generally more ochraceous along inner margin of the area. In 

 some specimens there is a diffuse short red streak in base of cell of fore- 

 wing on upperside. Exp. 131-1.56mm. A perfect male has been bred 

 110mm. The females are generally somewhat larger than the males. 



Egg — -The egg is light green when first laid but becomes orange-yellow 

 after some hours' exposure. It is spherical and l"8mm. in diameter; the 

 surface is smooth. 



Larva. — The larva is of the same type as that of P. polytes but, of course, 

 Hiuch larger. Head more or less round, large, face rather flat ; surface 

 finely frosted, somewhat shiny, covered, especially about lower portion, 

 with numerous short, fine, more or less erect, light brown hairs ; clypeus 

 small, equilaterally triangular, the apex rounded, rayed transversely, shiny 

 watery green in colour ; labrum transverse, whitish, shiny, as is also the 

 somewhat large ligula ; colour of eyes glassy white, one or two brown ; 

 antennae and jaws greenish white, both tipped brown ; the rest of the head 

 light green with a pure white line down centre, splitting down each side of 

 elypeus and forming thus a much larger triangle than the included clypeus. 

 The body is more or less circular in transverse section, much swollen at 

 segments 4 and 5, the head is generally hidden from above under segment 

 2 which is trapeze-shaped, the front margin straight, the sides diverging 

 backwards from it in a rounded, somewhat thickened angle where, how- 

 ever, there is no sign of a tubercle (at the angles), the dorsum transversely 

 convex, the dorsal line somewhat ascendant ; the anal end is high, f allijig 

 suddenly, nearly perpendicularly to the longitudinal axis of larva, from a 

 slight raised ridge along middle of segment 13 joining the dorsolateral 

 small tubercles of that segment ; the anal flap, forming the major portion 

 of this perpendicular hinder slope, is also trapeze-shaped, ending square 

 and has a triangular, shiny dorsal shield near its extremity ; it is closely 

 applied to the broad outer faces of the anal claspers and is coloured like 

 them greyish-white ; segment 3 is shaped like segment 2, widening out 

 backwards and sloping slightly upwards ; segments 4 and 5 assume dorsally 

 the shape of a semielliptical, somewhat flattened shield, the front boundary 

 of which is formed by a prominent curved ridge, differently coloured to the 

 rest of the body, stretching along the front margin of segment 4 and 

 ending laterally in a black ocellus or eye, the hinder limit being a similar 

 ridge along the hinder margin of segment 6, also slightly curved ; both 



