Literature

Authors	Year	Title
M. G. Balducci, Martins, D. J., Johnson, S. D.	2019	Pollination of the long-spurred African terrestrial orchid Bonatea steudneri by long-tongued hawkmoths, notably Xanthopan morganii
Wasserthal, L. T.	1993	Swing-hovering combined with long tongue in hawkmoths, an antipredator adaptation during flower visits. Pp. 77-87 in
J. Farminhão, Savignac, M., Droissart, V., Lowry_II, P. P., Rajaonarivelo, N., Rajaonarivelo, B., Verlynde, S., Todivelo, A., Stévart, T.	2024	A new orchid species expands Darwin’s predicted pollination guild in Madagascar
S. D. Johnson, Raguso R. A.	2016	The long-tongued hawkmoth pollinator niche for native and invasive plants in Africa
D. J. Martins, Johnson S. D.	2007	Hawkmoth pollination of aerangoid orchids in Kenya, with special reference to nectar sugar concentration gradients in the floral spurs
C. Micheneau, Johnson, S. D., Fay, M. F.	2009	Orchid pollination: from Darwin to the present day
L. A. Nilsson, Rabakonandrianina E.	1988	Hawk-moth scale analysis and pollination specialization in the epilithic Malagasy endemicAerangis ellisii (Reichenb. fil.) Schltr. (Orchidaceae)
A. E. Sallema, Selemani S. S.	2022	Diversity and abundance of a pollinator group: hawkmoths (Lepidoptera: Sphingidae) in forests and surrounding farmlands, East Usambara Mountains, Tanzania
L. T. Wasserthal	2015	Angraecum-Orchideen und langrüsslige Schwärmer, Bestäubung und Evolution
L. T. Wasserthal	2013	Evolution of long-tongued hawkmoths and pollination of long-spurred Angraecum orchids
L. T. Wasserthal	1998	Deep flowers for long tongues
L. T. Wasserthal	1997	The pollinators of the Malagasy Star Orchids Angraecum sesquipedale, A. sororium and A. compactum and the evolution of extremely long spurs by pollinator shift
L. T. Wasserthal	1996	Of hawkmoth species with long "tongues". Tropical biocenoses