Notes on Oriental Aphididae 



by 



P. VAN DER OOOT. 

 (Amsterdam) — Buitenzorg. 



In the present days of nearly universal warfare the yourne}* 

 home from the colonies in the tropics may often lead the 

 traveller through countries, which in more peacefull times 

 would scarcely have been visited by him at all. It was by 

 such circumstances that the autor, on his waj' home from 

 Java to Holland, had the pleasure of a short stay in Singa- 

 pore and Hongkong and of a longer one in Japan. The time 

 of the }'ear being not unfavourable, some time could be 

 devoted to the collecting oî Apiiididac. Especially Japan has 

 yielded a rich and interesting collection of some 90 distinct 

 species, which will be treated later in a separate paper. The 

 result of the collecting in Singapore and Hongkong, being 

 principali)' a small contribution towards our knowledge on 

 the geographical distribution of aphides, is published here. 



Aphididae of Singapore. 



Singapore is a true tropical place, being situated quite 

 near to the equator on 1° N. lat. The fauna of plantlice, 

 as might be expected, therefore shows a close resemblance 

 to the same of Java. Some collecting was done in the 

 neightbourhood of Singapore, from March 26''' till 30'^ iÇi?", 

 only a small number of species were captured, in all 10 

 species, 3 of them being new to science. The descriptions 

 of the new species are given at the end of this paper. 



The species observed in Singapore were: 



