22 



not, however, possess enough material to be able to investigate this sufficiently. 



The caterpillars live sociably close to each other on the leaves of the plant 

 which is called at Batavia pasilan and me?igadou or kemadouan (Loranthus 

 Pentandrus L.), of which they eat by preference the not yet full-grown leaves. 

 They have the Pieris form, are of a dark reddish-brown colour with transverse 

 golden lines. On the sides the spiracles are on these lines. Two long sub- 

 dorsal golden hairs protrude from these lines on the back of each segment 

 and on each side also such another hair protrudes, forming all together length- 

 wise four rows of such hairs. Head, anal segment and spiracles black. The 

 figure, added here by me, has succeeded very well. These caterpillars are 

 much tormented by small larvae of Braconidae, which surround them, as is 

 also the case with the caterpillars of P. Brassicae L., with their pale-yellow 

 cocoons without, however, enveloping them entirely. 



The pupae are of the same colour as the caterpillars, but darker and have 

 also the common Pieris type, with a white spot in the middle and a few 

 more white spots or dots. They are fastened very close together on a leaf; 

 once I counted 9 on the same leaf which was not very large. They are not, 

 however, as Rainbow mentions concerning the AustraUan species T. Harpalya 

 Don., fastened to a web which the larvae spin across the leaves of their food- 

 plant, for the caterpillars of the Java species have not got this custom. Some- 

 times the larvae and pupae of this species are found on the same leaf with 

 those of T. Belisama Cram. I believe I may conclude from my notes that the 

 imagines emerged from the chrysalis on the 10'^ day. 



2. Crithoe Bsd. (PI. II, fig. 3, a, b). 



BoisDUVAL, Spec. Gen. I p. 450 (1836) Pieris Crithoe. 



Snell. V. VoLL., Moil. d. Pier. /. 7 (1865) „ „ 



Wallace, Trans. Ent. Soc. of Loud. Ser. 3 vol. /\. p. 346 (1867). Thyca „ 



Fruhstorfer, Ent. Nachr. 14 /. 335 (1893) Delias Bromo. 



De Niceville, Joum. Asiat. Soc. of Bengal 63 /. 44 pi. 5 



fig. 7 (1894) „ Dymas. 



W. J. Mountain butterfly which flies rather high on flowers growing on 

 trees. It is not found in regions situated lower than Buitenzorg (265), but it is 

 common in the Salak, Megamendoung, Gedeh and Wajang mountains between 

 1000 and 1600 metres and perhaps still higher. I also received specimens 

 from mount Tjerimai (700) in the province of Tjirebon. 



C. J.? 



