750 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXL 



half of segments 5-14 is very convex transversely, the. sides nearly perpen- 

 dicular to the ventral surface. Segment 13 is short though quite apparent. 

 Segments 3 and 4 have each a short, sharp, conical, lateromarginal 

 tubercle situated in the centre ; segment 2 has a small one at each end of 

 the front margin. Spiracles are oval, black, with a white central slit 

 to each. The surface of the body is covered with hardly i^erceiitible 

 semi-appressed, white hairs ; the legs and two end-points are set with 

 somewhat longer erect ones which are brown on the latter and white on 

 the legs.; the surface is otherwise smooth and is dull ; the segment slightlj- 

 constricted at margins. The colour of the larva is a darkish transparent 

 looking olive-green speckled thinly with white on the dorsa of segments 

 0-14, the specklings being arranged so as to form a white dorsal line and a 

 dorsolateral darkish line, a dark diagonal stripe on segments 5-11 running 

 across from one segment to the next succeeding from the centre of the 

 dorsoventral margin of one to the darkish dorsolateral line of the succeed- 

 inf one ; there is a broad, spiracnlar, white-yellow band, below which there 

 is a deep green subsj)iracular one followed by a whitish band bordered 

 below by a green one ; the legs are watery green ; the dorsum of segment 

 2 is yellowish white with a dorsal green line ; the flattened deep green 

 dorsa of segments 3 and 4 are surrounded completely anteriorly, laterally 

 • and posteriorly by a yellow- white band and the lateral parts of these- 

 segments are suffused with reddish black ; tubercles on segments 2, 3, 4 

 are black. L : 40mm. ; B : 9mm. at the broadest part at segment 4. 



Pupa. — The pupa on the whole is of the ty|ie of that of P. nomius- 

 though of course there are considerable differences in colour, shape and 

 method of suspension. The head is quadrate seen from above, triangular 

 from the side ; eyes only slightly prominent ; frons at an angle of 60^ to 

 longitudinal axis of pupa ; from head the lateral outlines diverge to 

 shoulders, are then parallel as far as segment 4, after which the wings are 

 expanded in a considerable curve rather suddenly, merging gradually 

 further on into the surface of the abdomen about front margin of segment 

 8; ventrally the wings are only slightly convex along the ventral line: it 

 is very nearly parallel to the dorsal line ; the ventral line of abdomen 

 beyond is slightly convex also converging gradually towards the dorsal line 

 towards cremaster ; this dorsal line straight from cremaster to the apex 

 of thorax, sloping gradually away from the longitudinal axis of pupa at an 

 angle of about 25° to run out at thorax-apex into a short, blunt point 

 directed forwards at an angle of 45° with that axis ; the cremaster is 

 strong, parallel-sided, rather long, lying more or less along the surface of 

 attachment. The surface of pupa is dull and has the following low ridges 

 on it : one circumscribing the frons of head, one along dorsal line of frons 

 and segment 2, produced on to segment 3 as far as the thoracic blunt 

 point, a slight ridge from head to shoulder-point laterally, another, ia 



