taxonID	type	description	language	source
462B8790FFEEC34FFF3E6FF20694AE15.taxon	materials_examined	Type species: Miltochrista aberrans Butler, 1877	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFEEC34AFF3E6EC3077EACA6.taxon	description	urn: lsid: zoobank. org: act: 8442 D 22 A-F 5 E 2 - 47 E 9 - A 642 - 36 DFE 852 CCB 5 (Figs 1 A – D, 2 A, 3 A)	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFEEC34AFF3E6EC3077EACA6.taxon	materials_examined	Type material. Holotype (Figs 1 A, B, 2 A): ♂, Vietnam, Kon Tum Province, 9 km NW Mang Den, Ngoc Le Mount, 14 ° 37 ’ 55 ” N, 108 ° 12 ’ 57 ” E, 1550 m, 11 – 12. IV. 2024, leg. Evgeny S. Koshkin (ex EKC, will be deposited in ZISP). Paratypes (Figs 1 C, D, 3 A): 2 ♀, same data as holotype (EKC, ZISP).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFEEC34AFF3E6EC3077EACA6.taxon	diagnosis	Diagnosis. Aberrasine ryabinini is easily distinguished from all its congeners by the following combination of external features: contrasting yellow veins on forewings and hindwings, the absence of a discal spot, and an almost straight medial line parallel to the outer margin on the forewing. In the male genitalia, the new species is characterized by a sharply separated wide distal part of the valva with several toothed processes of irregular size on the costa. Vesica of Aberrasine ryabinini sp. n. bear a single cluster of cornuti, while all other Aberrasine species have two. Externally, the new species resembles Aberrasine atuntseensis (Daniel, 1951) in the shape of the antemedial and medial lines and in the absence of a discal spot on the forewing. However, unlike A. ryabinini sp. n., A. atuntseensis is larger, the costal margin of its forewing is dark, and the postmedial line continues from the costa to the CuA 2 vein (in A. ryabinini sp. n. it reaches the inner margin of the wing); all veins from the postmedial line to the outer margin are black, and in the rest of the forewing and on the hindwing the veins are not yellow (Daniel 1951; Fang 2000). A faint yellow color appears along limited sections of some veins in several specimens of A. aberrans (Butler, 1877), but is not nearly as well developed as in A. ryabinini sp. n., in which all veins are strongly outlined in yellow. All other Aberrasine species lack the yellow contrasting coloration of the veins. The discal spot on the forewing, except A. ryabinini sp. n. and A. atuntseensis, is absent also in several other Aberrasine species: A. variata, A. shiou, A. dingjiai, all three species of the strigivenata group. At the same time, these species are clearly distinguished from A. ryabinini sp. n. by other external characters. A straight medial line with a similar slope (so that it is almost parallel to the outer margin of the forewing), except A. ryabinini sp. n. and A. atuntseensis, is also present in three species of the strigivenata group (A. strigivenata (Hampson, 1894), A. pangsau N. Singh, Kirti & Bisht, 2021 and A. tiani S. - Y. Huang, Volynkin, N. Singh & M. Wang, 2021). At the same time, other elements of the wing pattern are practically absent in the above-mentioned species. The female genitalia of A. ryabinini sp. n. are most similar to those of A. aberrans, differing in a wider ostium bursae, a shorter ductus bursae, a larger appendix bursae with a more extensive area covered with spinules, and a less strongly concave posterior margin of the 7 th sternite than in A. aberrans.	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFEEC34AFF3E6EC3077EACA6.taxon	description	Description. Adult. Male (Figs 1 A, B). Wingspan 24.5 mm. Forewing length 12.5 mm. Head. Antennae yellowish, weakly ciliate. Labial palps yellowish, short. Proboscis short, short, slender, light brown. Head and frons yellow. Eyes rounded, brown. Thorax. Thorax yellow-orange with two rounded black spots dorsally; patagium unicolor orange-yellow; tegula orange with black spot. Legs unicolorous, yellowish. Forewing narrow, costa medially curved; ground color orange-red; veins yellow; transverse antemedial, medial and postmedial lines black; basal dot black; subbasal area with two elongated black spots; antemedial line curved at right angle in upper third; medial line straight, slightly curved at inner margin of forewing; antemedial and medial lines join at right angles near forewing costa; postmedial line strongly zigzagging; subterminal area with black streaks along veins; discal spot absent. Hindwing pale pink with pale yellow veins. Cilia on fore and hind wings yellow. Underside of forewing pinkish with slightly translucent dark pattern (Fig. 1 B). Underside of hindwing pinkish with yellowish costa and veins. Abdomen. Abdomen paler than thorax, yellow, terminal segments with long dark hairs. Female (Figs 1 C, D) similar to male, but antennae filiform, forewing costa not curved, antemedial and medial lines not joined. Abdomen pale yellow without long dark hairs. Wingspan 23 – 24.5 mm. Forewing length 12 – 13 mm. Male genitalia (Fig. 2 A). Uncus long, slender, pointed; tegumen short and broad; vinculum broad; saccus broad, rounded; costa with rounded protrusion medially; distal part of costa differentiated by a deep notch and bearing several toothed processes of irregular size; apical process large, spine-like; distal part of valva wide, with membranous lobe; distal saccular process long, pointed; phallus straight, short and thick. Vesica about size of phallus, sack-shaped, with two subbasal short, rounded diverticula and one cluster of tooth-like cornuti; series of cornuti beginning as a wide area of 7 – 8 rows of cornuti, continuing to distal end as a long sinuous band 1 – 2 cornuti thick, with a slight widening in the middle; base of vesica ejaculatorius with crescentic sclerotized plate. Female genitalia (Fig. 3 A). Papillae anales broad, rectangular with rounded edges; apophyses anteriores and posteriores long and thin, about equal in length; 7 th sternite wide, its posterior margin slightly concave; ostium bursae wide; ductus bursae wide and short; corpus bursae oval, densely covered with spinules, which are small in basal half of corpus bursae and larger in its distal part; appendix bursae large and long, strongly curved inwards, densely covered with large spinules on inner side.	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFEEC34AFF3E6EC3077EACA6.taxon	biology_ecology	Ecology. Aberrasine ryabinini sp. n. was collected in a slightly disturbed mountain deciduous forest at an altitude of 1550 m (Fig. 4). The new species occurs sympatrically with another species of the genus, A. peraffinis (Fang, 1991), which is found at the foot of Mount Ngoc Le at an altitude of about 1000 to 1100 m.	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFEEC34AFF3E6EC3077EACA6.taxon	distribution	Distribution. Currently, Aberrasine ryabinini sp. n. is only known from Ngoc Le Mount in the northern part of the Central Highlands region (Kon Tum Province, Central Vietnam).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFEEC34AFF3E6EC3077EACA6.taxon	etymology	Etymology. The new species is dedicated to the memory of Prof. Dr. Nikolay Andreevich Ryabinin (1946 – 2023), a famous Russian soil zoologist, my teacher and friend.	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFEBC34BFF3E6F6B05F1A816.taxon	description	(Figs 1 E – H, 2 B, C, 3 B, C)	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFEBC34BFF3E6F6B05F1A816.taxon	materials_examined	Material. 1 ♂, Vietnam, Vinh Phuc Province, Tam Dao, 21 ° 27 ’ 24 ” N, 105 ° 38 ’ 23 ” E, 900 m, 4. IV. 2024, leg. Evgeny S. Koshkin (EKC); 1 ♀, with the same data as for the male, but 2. IV. 2024.	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFEBC34BFF3E6F6B05F1A816.taxon	discussion	Remarks. This is the first record of this species for Vietnam and the Indochina peninsula. However, Aberrasine aberrans is widespread throughout East Asia, reaching as far south as Guangdong Province and the Guangxi Zhuang Autonomous Region (China), which border Vietnam. Specimens from northern Vietnam have a well-defined, slightly curved dark medial line on the forewings (Figs 1 E, F), as do many specimens from Southern and Eastern China (Fang 2000; Dubatolov et al. 2012 b; Wu & Kishida 2020). In many specimens from the northern part of the species range this line is not pronounced, it is either absent or yellow (Figs 1 G, H). The genitalia of male and female Aberrasine aberrans from Vietnam do not differ significantly from more northern specimens (Figs 2 B, C, 3 B, C). Following is an updated list of valid taxa in the genus Aberrasine based on the works by Volynkin & Huang (2019), Volynkin (2020), and Singh et al. (2021), taking into account recently described taxa, and newly clarified data on species distributions.	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE9C348FF3E687700EEAB0B.taxon	distribution	Distribution: Far East of Russia (southern Amur Oblast’, Jewish Autonomous Oblast’, southern Khabarovsk Krai, Primorsky Krai and Kunashir Island), Korea, China (Heilongjiang, Jilin, Shaanxi, Henan, Jiangsu, Zhejiang, Jiangxi, Fujian, Hubei, Hunan, Sichuan, Guangdong and Hainan Provinces, Guangxi Zhuang Autonomous Region, Beijing), Northern Vietnam (present study), Japan (Hokkaido, Honshu, Shikoku, Kyushu, Yakushima Islands) (Fang 2000; Dubatolov et al. 2012 a, 2012 b; Kishida 2011; Wu & Kishida, 2020; Spitsyna & Spitsyn, 2023).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE9C348FF3E6BFD04F5AA20.taxon	distribution	Distribution: Southern Japan (Okinawa, Amamioshima and Tokunoshima Islands) (Matsumura 1930; Kishida 2011).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE9C348FF3E6F8005EBAECE.taxon	distribution	Distribution: Southern China (Deqin County and Weixi Lisu Autonomous County, Northwest Yunnan Province) (Daniel 1951; Fang 2000).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE9C348FF3E6A98006DAD3A.taxon	distribution	Distribution: Northern Vietnam (Cho Ganh, Ninh Binh Province) (de Joannis 1928).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE9C348FF3E6DEF00E8AC33.taxon	distribution	Distribution: Northern Vietnam (Hoang Su Phi District, Ha Giang Province) (de Joannis 1928).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE9C348FF3E6CE504CAAF28.taxon	distribution	Distribution: Southern China (Northwest Yunnan Province and Southern Sichuan Province) (Daniel 1951; Fang 2000).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE8C349FF3E6DE90109AC2A.taxon	distribution	Distribution: Thailand, Cambodia and Vietnam (Černý 2016; Volynkin 2018; Bayarsaikhan et al. 2020).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE8C349FF3E6C9F0799AFC4.taxon	distribution	Distribution: China (Lanyu Island, Taiwan Province) (Hsu et al. 2018).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE8C349FF3E69C700DCA86B.taxon	distribution	Distribution: Southern Japan (Ishigaki, Iriomote and Yonaguni Islands) (Inoue 1988; Kishida 2011).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE8C349FF3E68DD0798AB64.taxon	distribution	Distribution: Southeastern China (Fujian Province) (Fang 1991, 2000).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE8C349FF3E6BD40172AA1A.taxon	distribution	Distribution: Southeastern China (Guangxi Zhuang Autonomous Region and Guangdong Province), Northeastern Laos (Huaphanh Province), Northern and Central Vietnam (Fang 1991, 2000; Volynkin 2018; Bucsek 2020).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE8C349FF3E6FB407F7AEDE.taxon	distribution	Distribution: Taiwan Island (China) (Wu & Kishida 2020; Volynkin 2020).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE8C349FF3E6ACF0580AD3F.taxon	distribution	Distribution: Southeastern China (Guangxi Zhuang Autonomous Region and Guangdong Province) (Fang 2000; Dubatolov et al. 2012 b).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE7C346FF3E69C707F7A86B.taxon	distribution	Distribution: Taiwan Island (China) (Wu & Kishida 2020; Volynkin 2020).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE7C346FF3E6AF40026AD3F.taxon	distribution	Distribution: Northeastern India (Arunachal Pradesh State) (Singh et al. 2021).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE7C346FF3E68DD06F1A8A7.taxon	distribution	Distribution: Central Vietnam (Kon Tum Province).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE7C346FF3E6BD90642AA04.taxon	distribution	Distribution: Northeastern India and Southwestern China (Xizang Autonomous Region) (Hampson 1894; Fang 2000; Singh et al. 2021; Zhu et al. 2021).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
462B8790FFE7C346FF3E6DE9001EAC2A.taxon	distribution	Distribution: Southwestern China (Xizang Autonomous Region) (Zhu et al. 2021).	en	Koshkin, Evgeny S. (2025): New contribution to the knowledge of the genus Aberrasine Volynkin & Huang, 2019 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) of Vietnam, with description of a new species. Zootaxa 5604 (4): 565-574, DOI: 10.11646/zootaxa.5604.4.8
