- 6 



Both are Curculionid beetles of rather omnivorous habits, so 

 tbat it is very probable that their occurrence in H evea- plantations 

 (whence they were reportée! as doing some damage to the leaves 

 by eating the margins), is not to be considered of serious • import. 

 1 observed thèse weevils also in plantations of Ginchona, Palaqw'um, 

 tea etc., but in none of thèse they could be said to be realiy noxious. 



3. Orgya postica, Wlk. The same can be said about the 

 caterpillars of this moth, which were forwarded from a plantation 

 near Bandjar (Preanger Regencies). 



VI. MANIHOT UTIL1SSIMA. 



1. Monolepta quadrinotata, F. A small Chrysomelid beetle, 

 received from a plantation in the Residency Kediri. According 

 to the manager thèse insects were not only destructive by eating 

 away a good deal of the leaves, but also by the sécrétion of a 

 fluid which caused brown specks and afterwards the death of the 

 remaining ones. The eggs are laid in small groups on the leaves ; 

 they are of a dirty reddish brown colour. I had no opportunity 

 to rear the larvae. 



2. Lytta spec. A not yet exactly determined species of the 

 so-called Blisterbeetles, lias caused considérable damage to the 

 ilfam/^-plantations near Ngandjoek (Res. Kediri). It must be 

 said, however, that they hâve also attacked other plants, as 

 Indian corn, which were cultivaled in the neighbourhood of the 

 Manihot-ûél&s. A chemical analysis of the beetles was made in 

 order to state wether they could be used for the production of 

 cantharidine : but this did not prove to be a profitable afî'air. 



VII. CAPSICUM ANNUUM. 



1. Daciis caudatus, F. The maggots of this fly were found 

 in great numbers feeding in the ripening fruits. They chiefly eat 

 the fruit-flesh, leaving the seeds unattacked, but the latter, no 

 longer being able to ripen, soon begin to grow putrid as nnally 

 the whole fruit does. 



