Anambulyx szechuanus Clark, 1938, Proc. New Engl. zool. Club 17: 43. Type locality: Southwestern China, Szechuan [Sichuan], Mt Omei [Emei Shan], 9000'.
Synonym. Smerithus [sic] litulinea Zhu & Wang, 1997, Fauna Sinica, Insecta 11: 272. Type locality: China, Sichuan, ??Yahongmu.
Note. The original Chinese description of S. litulinea incorrectly stated that the type locality was Yunnan, while the English description and the holotype label (in Chinese) give Sichuan. However, we were unable to find the locality 'Yahongmu' on any map or in any gazetteer.
No information available.
Unknown.
China: iv-vi (Yunnan); 8.v (Chongqing); 15-20.v (Chongqing; Sichuan); vi (Guangxi); 10.vi-13.vii (Sichuan; Yunnan); vii (Hunan; Guizhou; Fujian; Guangxi); 23.viii (Chongqing); 16.ix (Hunan); 3.x (Hunan).
OVUM: Unknown.
LARVA: Unknown.
PUPA: Unknown.
Larval hostplants. Unknown.
Unknown.
China: Hubei (Xingshan, 1300m; Xianning; Huawancun); Sichuan (Ya'an; Emei Shan, 2700m; Meigu; ??Yahongmu; Maipu; Longcanggou; Leshan); Chongqing (Simian Mountain National Scenic Resort, 1060m; Wuxi County, 1205m); Yunnan (Mengla; Gaoligong Shan; Dabaoshan; Wenshan, Malipo County); Guizhou (Tongren; Qiannan Buyei and Miao Autonomous Prefecture; Wanjuanshu; Niujiao Cave; Leigong Shan, 1304m; Libo County); Hunan (Fenghuang; Yangming Shan, 1600m; Huangshizhai; Fushou Shan, 1040m); Fujian (Sanming County, 925m); Guangdong (north); Guangxi (Maoer Shan, 1800m; Huopei; Dayao Shan, 1120m).
Southern China, Laos (Houaphan Province, 1800m, 29.v.2014, (Alexandre Teynié, pers. comm. 2017)), and south to central Vietnam (Le & Vu, 2024).
Map: Distribution of the genus Smerinthus in eastern Asia. The blue dotted line indicates the range of S. caecus, the red dotted line indicates the range of S. kindermannii, the orange spots indicate the range of S. minor, the green dotted line indicates the range of S. o. ocellata, the purple patch indicates the range of S. planus, the black spots indicate the range of S. szechuanus and the yellow spots indicates the range of S. tokyonis (© Jiang, Li, Yan, Wang, Zheng & Hu, 2024).
Holarctic; eastern Palaearctic region. Pleistocene refuge: Monocentric -- Sinoeremic refugium.
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