Movatterモバイル変換

Ambulyx siamensis Inoue, 1991,Tinea13(14): 130.Type locality: Thailand, [Chaiyaphum,] Nam Proam, 800m.

Male similar toAmbulyx substrigilis but forewing upperside pattern paler and more indistinct, subbasal spot much smaller than inAmbulyx substrigilis or even absent, subterminal line narrow in blackish, slightly arched and fading just before reaching the tornus, no spot in the submarginal area between veins CuA1 and CuA2; underside subterminal line indistinct, brownish. Hindwing patterns heavier than inAmbulyx substrigilis with more scattered black scales (Jiang, Kitching, Xu, Xu, Yan, Yu, Liu & Hu, 2025).

In the male genitalia, uncus and gnathos similar toAmbulyx substrigilis. Sacculus slender, dorsal margin with a large, sharply pointed and curved, triangular hook, harpe narrowed to a blunt finger-like lobe. Phallus slender and curved, posterior lobe sharply pointed apically and with tiny teeth laterally.

Little known.

China: 17.iv (Yunnan); vii (Yunnan); 6-29.viii (Yunnan).

OVUM: Unknown.

LARVA:

Photos: Larvae ofAmbulyx species from China. (A)Ambulyx moorei, Foshan, Guangdong, China; (B)Ambulyx sericeipennis sericeipennis, Hongkong, China; (C)Ambulyx ochracea, Guangzhou, Guangdong, China; (D)Ambulyx kuangtungensis, Guangzhou, Guangdong, China; (E)Ambulyx semiplacida montana, Pingbian County, Yunnan, China; (F)Ambulyx schauffelbergeri, Chongqing City, China; (G)Ambulyx siamensis, Mengla County, Yunnan, China; (H)Ambulyx siamensis, Mengla County, Yunnan, China; (I)Ambulyx liturata, Mt. Maoershan, Guangxi, China; (J)Ambulyx tobii, Kunming, Yunnan, China. (© Jiang, Kitching, Xu, Xu, Yan, Yu, Liu & Hu, 2025)

PUPA: Unknown.

Larval hostplants. FromParashorea chinensis in China, but in Thailand recorded fromShorea obtusa (Eitschberger & Ihle, 2010).

Unknown.

China: Yunnan (Xima, Yingjiang County, 1500m; Mengla Couny; Menglun, Xishuangbanna; Nabanhe Nature Reserve, Xishuangbanna, 1093m; Bulangshan, Menghai County, 1450m).

Southwestern China (Yunnan) and Thailand, Laos and Vietnam.

Map: Distribution of assorted species ofAmbulyx from China:Ambulyx substrigilis (purple dotted line);Ambulyx siamensis (ochre squares);Ambulyx liturata (blue dotted line);Ambulyx moorei (red dotted line);Ambulyx canescens (green dotted line);Ambulyx ochracea (yellow patch);Ambulyx maculifera (black triangles); andAmbulyx zhejiangensis (pink triangles). (© Jiang, Kitching, Xu, Xu, Yan, Yu, Liu & Hu, 2025).