IV. Rondotia Moore, 1885 (FIGURES 7–8)

Rondotia Moore, 1885, Ann. Mag. nat. Hist. 15 (5): 491. Type species: Rondotia menciana Moore, by monotypy. Ectrocta Hampson, [1893], Fauna Br. India (Moths) 1: 33. Type species: Ectrocta diaphana Hampson, [1893], by original designation. Synonymized by Leech, 1898.

Diagnosis. Characterized by the following features: body slender, yellow or whitish-gray; forewing with outer margin concave below apex and a projection at the end of M3, antemedial and submarginal lines black and distinct, medial line a short black line across apex of discal cell; hindwing with antemedial line reduced to a black spot and postmedial line arched; uncus divided into three lobes; valva elongate, apex broader with a large and a small tooth; saccus short and swollen distally. Overall, the species of the genus resemble day-flying geometrid moths.

Distribution. Mainland China (Guangdong, Guangxi, Sichuan) and Taiwan, the Oriental Region and the eastern Mainland Asia except Europe.

Remarks. This genus was established by Moore (1885) based on Rondotia menciana Moore, 1885 . It consists of three species (Hampson, 1892; Seitz, 1924; Dierl, 1978; Chu & Wang, 1996): R. lineata Leech, 1889, R. menciana and R. diaphana (Hampson, 1893), all three of which are here recorded from China (Map 4).

Map 4. Distribution of Rondotia spp. mainly in China.