Callambulyx tatarinovii, or unmonsuzume (ウンモンスズメ) in Japanese, is a moth of the family Sphingidae.
The species was first described by Otto Vasilievich Bremer and William (Wasilii) Grey in 1853.
It is found from northern Xinjiang across northern China, Mongolia, southern Siberia to the Russian Far East and Japan, and then south through Korea and central China to eastern Tibet.
It is very similar to Smerinthus kindermannii.
In Korea, adults are on wing from early May to mid-October.