Smerinthus populi var. populetorum Staudinger, 1887, Stettiner Entomologische Zeitung 48: 65. Type locality: [Kyrgyzstan,] Osch [Osh] (Haberhauer) [MNHU]; Lectotype designated by Danner, Eitschberger & Surholt, 1998, Herbipoliana 4(1): 111.
Wingspan: 70--120mm. Very like subsp. populi. Many have a reddish tone, which is easily produced by subjecting developing pupae to heat, or grey replacing the pinkish tint.
China: 23.iv.-v (Xinjiang).
Probably bivoltine; April-May and again in July/August.
OVUM: Pale green, almost sperical and large for the size of moth.
Larval hostplants. Unknown in China but recorded elsewhere on Populus and Salix (Pittaway, 1993).
China: Xinjiang (Yining/Gulja).
The above records (two specimens in SACS recorded by Pittaway & Kitching (2000) as Laothoe populi populeti (Bienert, )) confirm the occurrence of Laothoe populi populetorum in China.
River valleys in the mountains and foothills of eastern Uzbekistan, Tajikistan, Kyrgyzstan and south-eastern Kazakhstan (south of the Kyrgyz Steppe) to northwest China (Alphéraky, 1882), possibly as far as the southern Altai Mountains.
Holarctic; western Palaearctic region. Pleistocene refuge: Monocentric -- Turkestan refuge.