Smerinthulus quadripunctatus subsp. cottoni Cadiou & Kitching, 1990, Lambillionea 90(4): 7. Type locality: Thailand, Chiang Mai, San Pa Tong, Ban Sop Tong, 19.x.1988 (A. M. Cotton).
Synonym. Smerinthulus quadripunctatus subsp. cottoni Cadiou & Kitching, 1990.
Note. Raised to species status by Brechlin, 2014, Entomo-Satsphingia 7(2): 38.
Very similar in appearance to Smerinthulus laurae Brechlin, 2014, from Malaysia.
China: i (Bawangling National Nature Reserve, Hainan).
LARVA: [Illustrated in Eitschberger & Ihle, 2010].
Larval hostplants. Reported from Thailand as feeding on Shorea obtusa Wall. ex Blume (Eitschberger & Ihle, 2010).
China: Hainan (Bawangling National Nature Reserve)
Besides the island of Hainan, China, also recorded from northern Thailand and eastern Burma/Myanmar. It thus probably also occurs across northern Laos and Vietnam.