Degmaptera Hampson, 1896 [Invalid]

Synonymized with Smerinthulus by Brechlin, 2016, Entomo-Satsphingia 9 (4): 87. Rothschild & Jordan (1903) distinguished Degmaptera from Smerinthulus (in which they also included what are now classified as Cypoides chinensis and Morwennius decoratus) solely by “the hindwing being produced frontad near apex into a rounded lobe, the costal margin more or less sinuate proximally of this lobe, vein C [the costa] almost following the curve of this lobe, not straight as in Cypa and Smerinthulus”. However, a strongly developed lobe is only found in male Degmaptera mirabilis; that of the female is much less curved, and the costal margin of both sexes in Degmaptera olivacea is almost straight. On the basis of similarities in habitus, male genitalia and DNA barcode sequences, Brechlin (2014) transferred Degmaptera cadioui, Degmaptera laotiana and Degmaptera olivacea to Smerinthulus, leaving only the type species, D. mirabilis and the closely related Degmaptera schnitzleri in Degmaptera. However, using the same reasoning, there is no reason for not transferring Degmaptera mirabilis and Degmaptera schnitzleri as well, and synonymizing Degmaptera with Smerinthulus.