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



anteniiiB speckled with white, the head and thorax covered with greenish- 

 fuscous hairs ; beneath : the palpi green, thorax and abdomen white. Femala 

 dimorphic. 1st Form, M2}perside : ground-colour paler than in the male, in 

 some specimens quite ochraceous outwardly ; all the markings similar but 

 duller in tint ; the hindwing of course without the black, costal band of 

 specialized scales, the ground-colour extended up to the costal margin. 

 Underside : similar to that of the male but the ground-colour very much 

 paler and more ochraceous than green. In some specimens, in addition to 

 the black spots in interspaces 1 and 2 on the forewing, there is an anterior, 

 postdiscal, fuscous, curved band. Hindwing : discocellular spot larger than 

 in the male and annular ; a curved, discal series of reddish or pale ferruginous 

 spots from costa to dorsum. 2nd Form : similar to Form 1 but the ground- 

 colour pale primrose-yellow to pure white. Antennte, head, thorax and 

 abdomen in both forms as in the male. Expanse 40-50mm. 



Fffff. — In shape it is a truncated cone, twice as high, or slightly more, as 

 broad, with longitudinal channels and fine, transverse striae ; colour white 

 at first, turning yellow later on. 



Larva. — When it emerges from the egg it is nearly quite cylindrical with 

 a shiny, black, smooth head covered sparsely with white, erect hairs ; the 

 body is light greenish yellow-brown, rather oily looking, with a row of tuber- 

 cular haii-s along front margin of each segment ; there are no points at end 

 of anal segments. 



27id stage. — The same but the clypeus light in colour ; the body now with 

 many extra smaller hairs all over except on segments 2, 3. 



^rd stage. — Head genei-ally green, sometimes marked with brown, 

 with white, erect hairs from tubercles ; eyes brown. Body oily green,, 

 covered with short, light-coloured, bristle-like hairs with no sign of tuber- 

 cles ; along front margin of segment 2 is a row of 8 erect hairs, each one 

 bearing a globule of dark brown liquid at its extremity and rising from small 

 tubercles which are the same colour as the body ; segment 3 has 6 similar 

 hairs across the middle (transversely to the length of the body ) ; the others 

 have 8, one subdorsal, one dorsolateral, supraspiracular and subspiracular on 

 each- side ; the anal segment is rounded at end, very slightly indented in 

 middle of hinder margin ; there is a commencement of a dorsal, white band 

 on anterior segments (often a complete one the whole length of larva ) and 

 an obsolescent, spiracular, white line. 



4:th stage. — Head green ; body green also but no longer oily looking ; the 

 rest the same as in the 3rd stage. 



bth stage. — The caterpillar is of the same shape as that of Colotis vestalis. 

 It has the same round head, the large triangular clypeus has somewhat out- 

 ward-curved lateral sides and is green, covered with very minxite, cylindrical, 

 white tubercles in the same way except that here the tubercles are at a dis- 

 tance of at least three, perhaps four tubercle-diameters one from the other 

 and the hair on each is dark brown, fairly long and erect, hardly pointing 

 down at all ; the eyes are white-glassy, marked with brown ; the jaws are 

 brown-tipped; the labrum, ligula, antennal joints are green. The spiracles 

 are oval, of ordinary size, light brownish, those of segments 2 and 12 hardly 

 larger than the rest. The surface of the body is lined transversely with the 

 usual 7 lines to each segment and each ridge thus formed is set with minute 

 white tubercles like the head, spaced similarly and bearing exactly similar 

 dark hairs, one transverse (to body, along each ridge) along centre of each 

 ridge ; the main subdorsal, dorsolateral and supraspiracular tubercle no 

 larger than the rest, the hair on each, however, slightly longer, blunt-ended 

 and generally bearing a drop of dark liquid ; the hairs in spiracular-ventral 

 region fine, white and some of them somewhat longer. The anal flap is 

 trapeze-shaped, square-ended and rather thick, the square end being ever so 



