Larvae have been recorded feeding on a wide range of plants : Canellaceae, Guttiferae, Erythroxylaceae, Myrtaceae, Moraceae and Lauraceae.
Among his many contributions to taxonomy are his treatments of the Medusagynaceae, Theaceae, Violaceae, and Canellaceae for the second edition of the Die Natürlichen Pflanzenfamilien of Engler & K. Prantl, the publication as editor with E. Werdermann, of ed.