114 P- VAN DER GOOT, NOTES ON ORIENTAL APHIDIDAE. 



China; it's geographical position, at 22° N. lat, has endowed 

 the place with a subtropical climate. The town and her 

 suburban quarters possess numerous beautifull gardens and 

 many well-kept roads, lined with trees; the rest of the island 

 seems practically bare. 



Hongkong was visited on April 6'^ 19 17, it being an 

 exceptionall)' beautiful and mild da}' in spring. Onl)' two 

 hours could be spent ashore, a time scarcely sufficient for 

 a short walk through the principal quarters. Nevertheless a 

 few Aphididae could be collected, together 8 species, one 

 of these being a new one. It was a curious sensation to find 

 together well-known European aphids close to species which 

 are restricted to tropical countries. The species collected were : 



1. Melanaphis bambusae FULLAWAY; a few apterous indi- 

 viduals, living on leaves of bamboo. 



2. LacJums agilis Kalt. ; some apterous females, on the 

 needles of Pinus sp. 



3. Lachmis tomentosus DE Geer ; a number of apterous 

 specimen typically sitting one behind the other on the 

 needles of Pimts sp. 



4. Greenidea artocarpi Westw. ; a few apterous females 

 on the young shoots of Ficus sp. 



5. Oregma minuta V. D. G. ^) Ver)' numerous through the 

 whole town on the underside of the leaves of bamboo-plants. 

 The colonies of this aphid mosth' contained apterous females 

 only; on a few plants some alate specimens were observed. 

 No ants were seen visiting the plantlice. The infested plants 

 had a rather sickh' appearance and often had the leaves 

 covered with a thin layer of ,, sooty fungus", resulting from 

 the honey-dew secreted b)' the aphids. 



6. Thoracaphis fici V. D. G. (M. S.) ; some apterous females 

 and larvae, observed on the underside of the leaves of /^/^//j 

 benjamina. 



7. Thoracaphis hongkongensis no v. s p. on unknown tree. 



8. Pineus pini (L.) BöRNER ; many adult hiemales, living 



^) loc. cit. pag. 201. 



