taxonID	type	description	language	source
6F578E08FFA0FFC88BACE787FF40F9FD.taxon	description	Fig. 1 – 3, 5, 7 – 8, 9 – 10	en	Ouyang, Si-Qi, Zhang, Tong, Yu, Xia, Pan, Zhaohui (2025): Two new species of the genus Nygmia Hübner, 1820 (Lepidoptera, Erebidae, Lymantriinae) from China. Zootaxa 5620 (4): 589-594, DOI: 10.11646/zootaxa.5620.4.6, URL: https://doi.org/10.11646/zootaxa.5620.4.6
6F578E08FFA0FFC88BACE787FF40F9FD.taxon	materials_examined	Type material. Holotype (Figs 1, 5): male, “ STS- 51141, Beibeng Township, Motuo County, Linzhi City, Xizang, China, N: 29 ° 24.351 ′, E: 095 ° 16.974 ′, 16 - Ⅴ - 2023, h [Altitude] 781 m (coll. Pan Zhaohui and Jiang Xinrui) ” gen. prep. No. STS- 51141 (XAAHU). Paratypes: 1 female, Beibeng Township, Motuo County, Linzhi City, Xizang, China, N: 29 ° 24.351 ′, E: 095 ° 16.974 ′, 13 - Ⅴ - 2023, h [Altitude] 781 m (coll. Pan Zhaohui); 1 female, Motuo County, Linzhi City, Xizang, China, N: 29 ° 27.085 ′, E: 095 ° 32.815 ′, 29 - Ⅹ - 2011, h [Altitude] 1111 m (coll. Pan Zhaohui), unique numbers: STS- 72861, STS- 19786, gen. preps. in glycerol by Siqi Ouyang (XAAHU).	en	Ouyang, Si-Qi, Zhang, Tong, Yu, Xia, Pan, Zhaohui (2025): Two new species of the genus Nygmia Hübner, 1820 (Lepidoptera, Erebidae, Lymantriinae) from China. Zootaxa 5620 (4): 589-594, DOI: 10.11646/zootaxa.5620.4.6, URL: https://doi.org/10.11646/zootaxa.5620.4.6
6F578E08FFA0FFC88BACE787FF40F9FD.taxon	diagnosis	Diagnosis: Within the genus Nygmia, Nygmia linzhiensis sp. n. is only reminiscent of N. hanuman from Laos and N. postgrisea from Sundaland, but it can be distinguished from its congeners by the fewer brown scales on the forewing and the presence of a dark brown spot at the end of the discal cell. In the male genitalia, the new species can be distinguished from its congeners in the thickness of the distal saccular process and the broader saccus. The phallus structures display no significant difference from N. hanuman, but differs from N. postgrisea in that the distal section of the vesica covered by large cornuti field.	en	Ouyang, Si-Qi, Zhang, Tong, Yu, Xia, Pan, Zhaohui (2025): Two new species of the genus Nygmia Hübner, 1820 (Lepidoptera, Erebidae, Lymantriinae) from China. Zootaxa 5620 (4): 589-594, DOI: 10.11646/zootaxa.5620.4.6, URL: https://doi.org/10.11646/zootaxa.5620.4.6
6F578E08FFA0FFC88BACE787FF40F9FD.taxon	description	Description. Adult: Forewing length 41 mm in males and 47 mm in females. Head. Antennae short and bipectinate. Head brown, frons yellow. Thorax. Pale yellow. Abdomen. Yellowish-brown in basal one third, brown in distal two thirds and with yellow tuft ditally. Forewing ground color yellow, irrorated with blackish brown scales from wing bas antemedial area; discal spot black; postmedial line broad and diffuse; two black spots present at the termen of spaces R 5 and M 1. Hindwing pale yellow with a black spot at the distal end of the discal cell and irrorated with blackish brown along inner margin. Female. Similar to male except antenna with shorter rami and hindwing with less blackish brown irroration. Male genitalia: Uncus triangular with rod-like terminus. Tegumen trapezoidal. Saccus broad U-shaped. Valvae short and strongly sclerotized, basal saccular process blade like; medial saccular processes divided into a spike-like dorsal process medially with a short spine and a triangular ventral process; distal saccular process long and broad, curved medially and distally with a sharp end. Cucullus long and slender, membranous. Phallus cylindrical with triangular carinal plate. Vesica short, its main chamber and the distal diverticulum covered thoroughly by short cornuti. Female genitalia: Papilla analis trapezoidal, with small distal triangular protrusion. Apophyses thin, apophysis anterioris thicker than apophysis posterioris and nearly of the same length. Postvaginal plate and antevaginal plate broand trapezoidal and medially concave. Ductus bursae sclerotized and rugose in its posterior end. Corpus bursae long pyriform with an oval signum.	en	Ouyang, Si-Qi, Zhang, Tong, Yu, Xia, Pan, Zhaohui (2025): Two new species of the genus Nygmia Hübner, 1820 (Lepidoptera, Erebidae, Lymantriinae) from China. Zootaxa 5620 (4): 589-594, DOI: 10.11646/zootaxa.5620.4.6, URL: https://doi.org/10.11646/zootaxa.5620.4.6
6F578E08FFA0FFC88BACE787FF40F9FD.taxon	distribution	Distribution. The new species is known only in Linzhi, Xizang, China (fig. 9, 10).	en	Ouyang, Si-Qi, Zhang, Tong, Yu, Xia, Pan, Zhaohui (2025): Two new species of the genus Nygmia Hübner, 1820 (Lepidoptera, Erebidae, Lymantriinae) from China. Zootaxa 5620 (4): 589-594, DOI: 10.11646/zootaxa.5620.4.6, URL: https://doi.org/10.11646/zootaxa.5620.4.6
6F578E08FFA0FFC88BACE787FF40F9FD.taxon	etymology	Etymology. The specific epithet linzhiensis is derived from the type locality, which is an adjective in the genitive.	en	Ouyang, Si-Qi, Zhang, Tong, Yu, Xia, Pan, Zhaohui (2025): Two new species of the genus Nygmia Hübner, 1820 (Lepidoptera, Erebidae, Lymantriinae) from China. Zootaxa 5620 (4): 589-594, DOI: 10.11646/zootaxa.5620.4.6, URL: https://doi.org/10.11646/zootaxa.5620.4.6
6F578E08FFA2FFCF8BACE65DFB3BFF02.taxon	description	Fig. 4, 6, 11	en	Ouyang, Si-Qi, Zhang, Tong, Yu, Xia, Pan, Zhaohui (2025): Two new species of the genus Nygmia Hübner, 1820 (Lepidoptera, Erebidae, Lymantriinae) from China. Zootaxa 5620 (4): 589-594, DOI: 10.11646/zootaxa.5620.4.6, URL: https://doi.org/10.11646/zootaxa.5620.4.6
6F578E08FFA2FFCF8BACE65DFB3BFF02.taxon	materials_examined	Type material. Holotype (Figs 4, 6): male, “ STS- 55397, 80 K, Motuo County, Linzhi City, Xizang, China, N: 29 ° 39 ˊ 4.5 ″, E: 94 ° 42 ˊ 51.5 ″, 25 - VII- 2015, h [Altitude] 3932 m (coll. Pan Zhaohui) ” gen. prep. No. STS- 55397 (XAAHU).	en	Ouyang, Si-Qi, Zhang, Tong, Yu, Xia, Pan, Zhaohui (2025): Two new species of the genus Nygmia Hübner, 1820 (Lepidoptera, Erebidae, Lymantriinae) from China. Zootaxa 5620 (4): 589-594, DOI: 10.11646/zootaxa.5620.4.6, URL: https://doi.org/10.11646/zootaxa.5620.4.6
6F578E08FFA2FFCF8BACE65DFB3BFF02.taxon	diagnosis	Diagnosis: Within the Nygmia genus, the adult of Nygmia motuoensis sp. n. almost identical N. hanuman from Laos, and the genitalia are very similar. However, the differences are as follows: 1) more brown scales in posterior to the middle chamber of the forewings of N. motuoensis sp. n.; 2) the valvae of the N. motuoensis sp. n. were asymmetrical, with a sclerotized small spine at the left base and two small sclerotized spines at the right basal half, while the valva of the N. hanuman was symmetrical, and with a large sclerotized branch in the middle; 3) the N. motuoensis sp. n. has a wisp of caudate spikes in the center of the vesica base, which the N. hanuman does not have. Compared with other congeners, N. motuoensis sp. n. can be distinguished by the aforementioned characteristics of the sclerotized branching valva structure and the central caudate spike at the base of the vesica.	en	Ouyang, Si-Qi, Zhang, Tong, Yu, Xia, Pan, Zhaohui (2025): Two new species of the genus Nygmia Hübner, 1820 (Lepidoptera, Erebidae, Lymantriinae) from China. Zootaxa 5620 (4): 589-594, DOI: 10.11646/zootaxa.5620.4.6, URL: https://doi.org/10.11646/zootaxa.5620.4.6
6F578E08FFA2FFCF8BACE65DFB3BFF02.taxon	description	Description. Adult: Male wingspan 38 mm. Antennae double-toothed, the antennae yellow, and the doubletoothed brown. Head brownish-yellow, forehead yellow, thorax pale yellow, and the back of the thorax with brownish-yellow tufts. The dorsal plate of the 1 st to 3 rd abdominal segments on the dorsal surface of the abdomen yellow, yellow-brown hair tufts on both sides of the 1 st to 2 nd abdominal segments, the rest brown, and an irregular black-brown patch in the middle of the dorsal plate of the 4 th and 6 th abdominal segments, the ventral surface of the abdomen grayish-yellow. The undercolor of the forewings yellow, the inner and outer lines brown, the half of the midline at the apex of the near wing yellow, the other half brown, the subterminal line yellow, a large number of dark brown scales from the base of the wing to the outer line, the left and right sides of the half segment near the wing end of the midline yellow, the dark brown scales few, the inner, midline, and outer lines arcuate, a black spot in the middle chamber of the forewing, a black oval dot at the terminal line between the R 5 vein and the M 1 vein, the M 1 vein and the M 2 vein, and the marginal hairs yellow. The background color of the hindwings light yellow, with brown scales distributed to the entire wing surface in the upper part, less distribution from the subterminal line to the margin hairs, dark brown hair tufts obviously distributed on each vein between the M 1 vein and the 3 A vein, and a brown irregular shape at 1 / 3 of the R 1 vein, M 1 vein and M 2 vein at the base of the wing. The tufts of anal hairs yellow and broom-shaped. Male genitalia: Uncus conical, covered with fine hairs. Tegumen broadband-shaped, slight short. Valva asymmetrical, broad base, strong sclerotization, valva base dorsal margin medial side of a long antennae-like protrusion, antennal protrusions membranous, fat, covered with fine hairs, sacculus base with four branches, all sclerotized, two long, two short, the left long branch at the base and middle of the branch each heavy branch out of a short spiny structure, the right long branch and another long branch in the middle and a quarter of its own heavy branch out of a short spiny structure, all sclerotized. Saccus tongue-shaped and well-developed. Many long spines on the apex of vesica, arranged haphazardly, with a caudate spike in the center of the base of vesica, a sclerotized labial sheet on the lower side of the end of vesica, and a group of spines on the ventral surface. Female. Unknown.	en	Ouyang, Si-Qi, Zhang, Tong, Yu, Xia, Pan, Zhaohui (2025): Two new species of the genus Nygmia Hübner, 1820 (Lepidoptera, Erebidae, Lymantriinae) from China. Zootaxa 5620 (4): 589-594, DOI: 10.11646/zootaxa.5620.4.6, URL: https://doi.org/10.11646/zootaxa.5620.4.6
6F578E08FFA2FFCF8BACE65DFB3BFF02.taxon	distribution	Distribution. The new species is known only in Linzhi, Xizang, China (fig. 11).	en	Ouyang, Si-Qi, Zhang, Tong, Yu, Xia, Pan, Zhaohui (2025): Two new species of the genus Nygmia Hübner, 1820 (Lepidoptera, Erebidae, Lymantriinae) from China. Zootaxa 5620 (4): 589-594, DOI: 10.11646/zootaxa.5620.4.6, URL: https://doi.org/10.11646/zootaxa.5620.4.6
6F578E08FFA2FFCF8BACE65DFB3BFF02.taxon	etymology	Etymology. The specific epithet motuoensis is derived from the type locality, Motuo.	en	Ouyang, Si-Qi, Zhang, Tong, Yu, Xia, Pan, Zhaohui (2025): Two new species of the genus Nygmia Hübner, 1820 (Lepidoptera, Erebidae, Lymantriinae) from China. Zootaxa 5620 (4): 589-594, DOI: 10.11646/zootaxa.5620.4.6, URL: https://doi.org/10.11646/zootaxa.5620.4.6
