on the Biology of Roridula. 157 
assumed that it preys upon the insects which enter the pitcher 
or which are caught in its fluid. 
Mr. Mally, of the Cape Entomological Department, has 
kindly made a general list of the insects found on a handful 
* of branches .of Roridula dentata , gathered by me on the 
occasion of my visit to the Tulbagh mountains. This list 
shows : — 
Hymenoptera : twenty-five specimens belonging to the sub- 
families Sphecina and Apina. 
Diptera: twenty specimens of Muscidae. 
Coleoptera: Of Coccinellidae were present Chilomenes 
lunatus , Fab., Exochomus nigromacidatus , Goeze, 
Pharus sexguttatus , Gyllh. and two other species. 
Of Scarabaeidae two species were present, viz. Lepitrix 
stigma , de Geer, and Pritrichia capicola , Fab. 
Hemiptera : One specimen each of Lygaeidae, Reduviidae 
and Membracidae. 
Capetown. 
May , 1902. 
