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A new species of the genus Zographetus Watson, 1893 from China (Lepidoptera: Hesperiidae)

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Abstract

Zographetus rienki sp. nov. is described from southern China based upon two males and one female which are associated by COI barcode. The male of this new species is distinguishable by the following combination of external characters: on the ventral side of the forewing, there is a black hair tuft at basal dorsum, cubitus and basal Cu2 are swollen, and the origin of vein Cu2 is much nearer to wing base than to vein Cu1; both sides of the hindwing are unmarked. The structure of male genitalia also differs from those of all the known congeneric species. Adults and genitalia of the type specimens are illustrated. A key to species of the genus is provided based upon previous works.

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... The genus Zographetus Watson, 1893 (Hesperiidae: Hesperiinae) is distributed in the Oriental Region from the Himalaya and north-eastern India through southern China, Indo-China, and the Malay Peninsula to the Philippines, Sulawesi and the Lesser Sunda Islands (Xue et al. 2019). Along with the type-species, Isoteinon satwa de Nicéville, [1884] (now Z. satwa (de Nicéville, [1884])), 13 species are known so far (Xue et al. 2019). ...
... The genus Zographetus Watson, 1893 (Hesperiidae: Hesperiinae) is distributed in the Oriental Region from the Himalaya and north-eastern India through southern China, Indo-China, and the Malay Peninsula to the Philippines, Sulawesi and the Lesser Sunda Islands (Xue et al. 2019). Along with the type-species, Isoteinon satwa de Nicéville, [1884] (now Z. satwa (de Nicéville, [1884])), 13 species are known so far (Xue et al. 2019). In India, two species are recorded: (a) Z. satwa (de Nicéville, [1884]), which occurs from Kumaon eastward into the Himalaya and NE India, extending to Myanmar, Indo-China, Thailand, Peninsular Malaysia, Sumatra and Java, and (b) Z. ogygia (Hewitson, [1866]), which occurs in India in the Western Ghats, Eastern Himalaya and NE India, extending to Myanmar, Indo-China, Thailand, Peninsular Malaysia, Sumatra, Java, and Borneo (Corbet et al. 1992;Ek-Amnuay 2012;Evans 1932Evans , 1949Inayoshi 2020;Kunte et al. 2021;Maruyama 1991;Sondhi et al. 2013;Sondhi & Kunte 2018a;b). ...
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A new species, Zographetus dzonguensis sp. nov., is described based on three male specimens from Upper Dzongu, North Sikkim District, Sikkim, India. The new species is closely similar to Z. pangi from Guangdong and Z. hainanensis from Hainan, China, from which it is distinguished based on the following combination of external characters: (a) forewing with the white spot at the base of space M3 being sharply pointed at the inner edge and conspicuously more elongated, and (b) on underside of hindwing, all chocolate-brown spots being smaller, in Z. dzonguensis sp. nov. compared with both Z. pangi and Z. hainanensis. In Z. dzonguensis sp. nov., the male genitalia may be distinguished as follows: (c) tegumen and uncus are almost equal in length, (d) the dorsal outline of tegumen is relatively flat, and (e) saccus is distinctly bent upward as angle between vinculum and saccus is more acute than in Z. pangi and Z. hainanensis.
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