10 Mr. F. Mail- and Dr. D. Sharp on 



wliicU cau be seen by turning the ninth spikes over the 

 back. 



The first thoracic and first eight abdominal segments 

 bear a pair of spiracles each which are white and raised 

 up above the body surface. They are situated above the 

 fleshy spikes. 



The larva is of a whitish colour and bears two large 

 dark chitinous plates on its pronotum. The following 

 segments have two dark marks on each side, and the 

 abdominal segments a dark dorsal mark. These marks 

 vary in size and often coalesce laterally, and the colour 

 varies from light grey to black, against which the white 

 spiracles show up distinctly. 



Pupa. In the pupa the pronotum is greatly enlarged and 

 extends beyond the head. The thorax has lost all trace 

 of spikes. The first five abdominal spikes become 

 spatulate and curved, and the outer surface covered with 

 glandular hairs which secrete an oily substance. The other 

 four pairs of spikes become greatly reduced in size, the ninth 

 pair becoming short, thick and curved at the tips, to which 

 the five larval skins still adhere and hang over the back. 



The tenth urite is evidently withdrawn into the body. 



2. Asindomorpha kda. 



PI. IV, figs. 21«, ^Ih. 



The larva of this species when first hatched is yellowish 

 and fiattish. It bears the same number of spikes as A. 

 puncticosta, and the ninth abdominal pair is greatly 

 enlarged and retains the cast skin at each ecdysis. 



The tenth ab<lominal segment is capable of being 

 extended and then forms a tube down which the excre- 

 ment is slowly passed and hardens upon exposure to the 

 air, and forms long slender filaments. During the first 

 two instars the filaments are attached to the ninth ab- 

 dominal spikes, in a radiating manner. During the 

 following instars the filamentous excrement is dropped, 

 the tenth abdominal segment being too short to reach to 

 the base of the ninth abdominal spikes. 



The pupa is delicate semi-transparent green or yellow. 

 The pronotum is greatly expanded and has a series of 

 little spikes all round its edge, two pairs being larger than 

 the others. The mesa- and metanotum are well developed 

 but bear no spikes. The number of visible abdominal 



