Ridley, H. N. (1883). Descriptions and Notes on new or rare Monocotyledonous Plants from Madagascar, [collected by W. Deans Cowan] with one from Angola. J. Linn. Soc., Bot. 20: 329 – 338.Full text
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Butler A. G. 1878. On a collection of Lepidoptera recently received from Madagascar. Annals and Magazine of Natural History (5) 2(10):283–297. full text
Waterhouse, C.O., 1878 Contributions to a knowledge of the Coleoptera of Madagascar. Cistula Entomologica 2(40): 363–368.full text
Waterhouse, C.O. 1880. New Genera and Species of Coleoptera from Madagascar. The Annals and Magazine of Natural History ser. 5, 5(29): 409–419 Full text
Ridley, H. N. (1885). The Orchids of Madagascar. J. Linn. Soc., Bot. 21: 456 – 523 full text
Waterhouse, C.O. Further contributions to the knowledge of the Cetoniidae of Madagascar. Entomologist's Monthly Magazine (1878-1879) Full text