82 CALOGRAMMA FESTIVA WALK. 



There is evidently much confusion in the use of the name 

 Chandan among- the Malays, and there are evidently yet more 

 incense woods in the Peninsula of which the origin is not yet 

 known. Those who have the opportunity of getting; specimens 

 of these would do well to secure them in order that we may 

 discover what the plants are. 



Calogramma festiva Walk. 



By H. N. Ridley. 



This handsome and widely distributed moth is a great pest 

 in our gardens on account of the damage its caterpillars cause to 

 Crinums especially C. asiaticum. I can find, however, nowhere 

 any description of the larvae, so that it may be well to describe 

 the life history of it as far as I can. The eggs are very small, 

 white, bunshaped, with numerous regular grooves and ridges 

 from the top downwards, finely reticulate with circular reticula- 

 tions. The moths (in captivity) laid about 40 all close together. 

 The young caterpillars are nearly smooth with a black head, the 

 body marked with fine black and white alternate lines, a trans- 

 verse black band on the fourth segment and two black spots on 

 the last segment but two, belly and leg's pale reddish. They 

 feed in rows on the epidermis of the leaves of the Crinum or on 

 the fruit. As they grow larger they separate and attack chiefly 

 the bases of the leaves and central shoot, quite spoiling- the ap- 

 pearance of the plant but rarely killing- it. The full-grown cater- 

 pillar is an inch and a half long- and very thick, smooth with a shin- 

 ing chestnut head, body black above with undulating white streaks 

 running along the back and a central ochreous one. A velvety 

 black bar runs across the fourth body segment, an ochre coloured 

 band runs along the side above the spiracles. The spiracles are 

 black with a white spot behind each ; belly dull cherry red, fore legs 

 black, the others dull red with a black spot above each foot. It is 



