p. VAN DER GOOT, NOTES OR ORIENTAL APHIDIDAE. 12/ 



numbers on the underside of the leaves of an undetermi- 

 nated evergreen tree {Quercus sp. ? ?). The aphids were mostly 

 arranged alongside the large veins of the leaf; besides 

 numerous apterae, a small number of nsmphae and alate 

 females were observed. 



The colonies of this plant-louse were seen to be visited 

 b}' a small number of large dull blackish ants (Caniponotus 

 cavie Ihm s ?). 



Locality. 



Hongkong. 



Note. 



This species can be easily distinguished from all other 

 Thoracap/us-s^&cÌQS,, known from tropical and sub-tropical 

 countries, b}' the numerous long and strong spines on the 

 dorsum of the apterous female. From Th. cinnamomi, which 

 has much thinner bristles on the dorsum, it can be readily 

 told by the absence of the suture at the hindmargin of the 

 céphalothorax. 



