PLASTINGIIN^. 2 1 7 



series of black sjiots commencing with two in interspace 7, one of them being near the 

 base, one in each lower interspace and two in the interno-mediau interspace, the last 

 of these near the base, also an indistinct marginal series of blackish lunular marks' 

 increasing in size hindwards, ending in a little blackish suftusion at the anal angle. 

 Antennae black, the shaft with white dots beneath, the club whitish below, its tip dull 

 orange; palpi, head and Ijody above concolorous with the wings, abdomen with greyish- 

 yellow bands ; on the underside the palpi, body and legs are greenish-yellow, like the 

 colour of the hind wing, the palpi beneath with yellowish-grey and black scales. 



Female similar to the male. 



Expanse of wings, J" ? I5 inches. 



Egg. — The egg is laid on the underside of the leaves. It is dome -shaped, standing 

 on a narrow band. It has fourteen " meridians" which start fr(jn) the top of the band 

 and run towards the top of the dome ; these meridians are thin and raised above the 

 surface. The surface is very finely lined transversely to the meridians. The colour is 

 greenish, with the meridians brown. As the egg found was empty, the larva having 

 eaten its way out of the top and made a large hole, the fact as to whether the meridians 

 meet at the top of the egg cannot be stated. Breadth 0' 8 mm. 



Larva. — The head is semi-elliptical in shape, slightly rough as to surface, 

 somewhat shiny, very light yellow-brown in colour, with a dark Ijrown l)and down the 

 back (not visible from the front) just reaching the jaws, a brown medial line splitting 

 down the sides of the clypeus, and a somewhat brownish line, broadest in the middle 

 of its length, on each lobe of the face, starting from the clypeus, and diverging from 

 the middle line of the face, and nearly reaching the vertex of the lobe ; the jaws and 

 the lower parts of the clypeus dark brown ; the head is much larger than the second 

 segment. Body broadest at segment 5, sub-cylindrical in shape, the last segment, 

 ending semieircularly, is sloping and rather large, slightly corrugated on the dorsum 

 towards the posterior margin, and with a small, lateral, round, tubercular, light yellow- 

 brown spot. All the segments are clearly distinguished. The spiracles are of the 

 ordinaiy size, rather round (actually slightly oval), light yellowish-brown in colour. 

 Each segment has a good many colourless glossy-looking spots towards its front 

 margin; these spots are small, but clearly visible under the lens. The surface of the 

 body is finely frosted and dull, destitute of hairs except round the margin of 

 segment 14. General colour of the larva bluish-greeny- white, beneath yellowish- 

 green. Total length, 22 mm. 



Pupa like that of Suastus gremius, Fabr. Head as broad if not broader than at 

 the shoulders, and is, together with the segment 2, very large for the pupa and is 

 slightly bowe.d. Thorax slightly short, strong, convex, but only slightly humped. 

 Body of the same breadth from the shoulders to segment 8, and tapering to the end ; 

 constricted between segments 2 and 3 ; the body is circular in transverse section from 

 VOL. X. 2 F 



