O’Shea & Schaefer (1980: 237-239, 241-242) discuss the identity and type species of the nominal genera Derepteryx, Pterygomia and Molipteryx. See also Hsiao (1964j). Molipteryx (without description) for D. fuliginosa Uhler, with syn. tuberculipes Motschulsky and page reference to Kiritshenko (1916a) appeared in Kiritshenko (1915a: 299).