Ecologica Montenegrina 20: 97-104 (2019) This journal is available online at: www.biotaxa.org/em

https://zoobank.org/urn:lsid:zoobank.org:pub:6369D456-6953-4DA5-8B2E-120FA3134F1F

Description of the new Longarista Volynkin, gen. nov., with a new species from northern Indochina (, , )

ANTON V. VOLYNKIN1, 2

1 Altai State University, Lenina str. 61, RF-656049, Barnaul, Russia. E-mail: [email protected] 2 Tomsk State University, Lenina Avenue, 36, RF-634050, Tomsk, Russia.

Received 2 February 2019 │ Accepted by V. Pešić: 27 February 2019 │ Published online 28 February 2019.

Abstract The new genus Longarista Volynkin, gen. nov. is described for Miltochrista longaria Daniel, 1951. The new genus belongs to the Asura / Miltochrista generic complex and is related to Barsine Walker, 1854 and Miltochrista Hübner, [1819]. A new species, Longarista kareli Volynkin, sp. nov. is described from northern Indochina (Myanmar, Thailand, Laos and Vietnam). The new combination is established: Barsine convexa (Wileman, 1910) comb. nov. Adults, male and female genitalia of both Longarista species and representatives of the related genera are illustrated.

Key words: , Asia, China, Myanmar, Thailand, Laos, Vietnam, new genus, new species.

Introduction

The species M. longaria was described from southeastern China (Zhejiang) (Daniel, 1951) and long time was considered as a member of the genus Miltochrista (Fang, 1991; 2000). Externally, this species is very similar to some species of the genus Barsine, but the study of its male and female genitalia demonstrated that it belongs not to Barsine or Miltochrista, but a separated, yet undescribed genus. In addition, during our studies of the genitalia of externally similar specimens from Myanmar, Thailand, Laos and Vietnam proved their belonging to another species, which is new to science. Descriptions of the new genus and the new species are given below.

Material and Methods

Abbreviations used: CAV = private collection of Anton Volynkin (Barnaul, Russia); CKC = private collection of Karel Černý (Innsbruck, Austria); HT = holotype; MWM/ZSM – Museum Witt Munich / the Bavarian State Collection of Zoology (Museum Witt München / Zoologische Staatssammlung München, Munich, Germany); NHMUK = Natural History Museum (formerly British Museum of Natural History, London, UK); PT = paratype; ZFMK = Zoological Research Museum Alexander Koenig (Zoologisches

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Forschungsmuseum Alexander Koenig, Bonn, Germany); ZMB = Museum of Natural History, Berlin (Museum für Naturkunde, Berlin, Germany). The genitalia were dissected and mounted in euparal on glass slides. The photos of imagoes were taken using the camera Nikon D3100/AF-S Nikkor, 18–55 mm. The photos of genitalia where taken by the same camera attached to a microscope with an LM-scope adapter. All pictures were processed using the Adobe Photoshop CC 2018® software.

Longarista Volynkin, gen. nov. Type species: Miltochrista longaria Daniel, 1951.

Etymology. The genus name is a combination of the name of the type species, longaria, and the generic name Miltochrista. Gender is feminine.

Diagnosis. Members of the new genus (Figs 1–9) resemble some species of the genus Barsine, especially females of the Vietnamese Barsine bachma bachma Volynkin & Černý, 2018 (Figs 13, 21, 28), males of the Chinese Barsine delineata (Walker, 1854) (Figs 10–12, 20, 27) and both sexes of Taiwanese Barsine convexa (Wileman, 1910) comb. nov. (Figs 14, 15, 22, 29) as well. Nevertheless, species of Longarista can be easily distinguished from female specimens of B. bachma bachma by their broader forewing, presence of yellow suffusion and red hindwing cilia at outer and anal margin. Unlike B. delineata and B. convexa, species of Longarista have no discal spot of forewing. Despite the external similarity, the male genitalia of Longarista (Figs 16–19) differ clearly from those of Barsine (Figs 20–23) by the absence of a medial costal process, the presence of which is the main synapomorphy of the genus Barsine and its allies (Cyme Felder, 1861, Melanaema Butler, 1877, Barsura Volynkin, Dubatolov & Kishida, 2017, Nebulene Volynkin & Černý, 2018 and Asura Walker, 1854). Compared to those of members of the genus Miltochrista (Figs 24, 25), the male genitalia of Longarista have no distal membranous lobe of valva. In addition, the vesica of Longarista is armed with numerous small but robust cornuti, the feature bringing it closer to most Barsine (the vesica of Miltochrista has one or several large, thorn- or blade-like cornuti). The autapomorphic feature of Longarista is the structure of its juxta, which is swollen, heavily sclerotised and densely covered with small denticles, whereas other members of the Asura / Miltochrista generic complex have flattened juxta, which is moderately or weakly sclerotised and has no denticles. The female genitalia of the new genus (Fig. 26) are characterized by the presence of a swollen postvaginal plate, which is absent or flattened in Barsine and Miltochrista (Figs 27–31) and other genera of the Asura / Miltochrista generic complex as well.

Description. Adults (Figs 1–9). Medium-sized ; male antennae ciliate, female antennae filiform. Wings red with slight yellow suffusion. Forewing pattern dark grey or blackish, consists of two small subbasal spots, antemedial line angled in the cell, wavy medial line, curved and shortly dentate postmedial line and a series of longitudinal strokes of different length between the veins. Forewing cilia blackish. Hindwing without pattern, sometimes with slight dark grey suffusion along veins in the subterminal and terminal areas. Hindwing cilia blackish at apex and red at outer and anal margin. Male genitalia (Figs 16– 19). Uncus robust, laterally flattened, curved subapically, pointed apically. Tuba analis broad, membranous; scaphium narrow and weakly sclerotised. Tegumen moderately sclerotised, shorter than valva, its distal half strongly angled dorsally; vinculum U-shaped, short; juxta bilobate, heavily sclerotised, strongly swollen, its dorsal surface densely dentate. Valva heavily sclerotized, lobe-like, with short broadly trigonal costal process directed distally and narrower thorn-like medial process directed distally-ventrally. Sacculus broad, weakly setose, without processes. Aedeagus elongated, narrow, slightly broadened and dentate distally. Vesica short, membranous, has long medial cluster of short but robust cornuti and several short diverticula with small short cornuti or granulation. Female genitalia (Fig. 26). Papillae anales trapezoidal. Apophyses thin; apophyses anteriores ca. 2 times shorter than apophyses posteriores. Ostium bursae broad. Postvaginal plate rounded, rugose, swollen dorsally. Ductus bursae elongated, dorso-ventrally flattened, heavily sclerotised. Corpus bursae ovoid, its inner surface with strong spinulose scobination. Appendix bursae small, globular, situated postero-laterally, with granulation laterally.

Distribution. Species of the genus are distributed in southern China and northern Indochina.

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Figures 1–8. Longarista (1–9) and Barsine (10–15) spp.: adults. 1, L. longaria, holotype male, China, Zhejiang (ZFMK); 2, L. longaria, male, China, Hainan (MWM/ZSM); 3, L. longaria, female, China, Guangdong (ZMB); 4, L. kareli, holotype male, N Myanmar (MWM/ZSM); 5, L. kareli, paratype male, N Myanmar (MWM/ZSM); 6, L. kareli, paratype male, N Myanmar (MWM/ZSM); 7, L. kareli, paratype male, N Thailand (MWM/ZSM); 8, L. kareli, paratype male, N Laos (MWM/ZSM); 9, L. kareli, paratype male, N Virtnam (MWM/ZSM); 10, B. delineata, male, China, Zhejiang (ZFMK); 11, B. delineata, male, China, Jiangxi (MWM/ZSM); 12, B. delineata, female, China, Shanghai (ZFMK); 13, B. bachma bachma, paratype female, S Vietnam (CAV); 14, B. convexa, male, Taiwan (MWM/ZSM); 15, B. convexa, female, Taiwan (MWM/ZSM).

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Figures 16–19. Longarista spp.: male genitalia. 16, L. longaria, China, Guangdong, slide AV4241 Volynkin; 17, L. longaria, China, Hainan, slide MWM 33570 Volynkin; 18, L. kareli, holotype, N Myanmar, slide MWM 33597 Volynkin; 19, 18, L. kareli, paratype, N Vietnam, slide MWM 33571 Volynkin.

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Longarista longaria (Daniel, 1951), comb. nov. (Figs 1–3, 16, 17, 26)

Miltochrista longaria Daniel, 1951, Bonner zoologische Beiträge 2 (3–4): 318, text fig. 19; pl. 1, fig. 21. (Type locality: [Zhejiang] “Wenchow”).

Type material examined. Holotype (Fig. 1): male, “Wenchow (Chekiang), Juni 1938, H. Höne” / “Präp. Nr. 690 Slg. Franz Daniel München” / dark pink label “Holotype ♂ Miltochrista longaria Daniel” (Coll. ZFMK).

Other material examined: 1 male, [China, N Guangdong, Tsha-yun-shan] Te, 15.VIII. / China, ex coll. R. Mell, slide AV4240 Volynkin (Coll. ZMB); 1 female, [China, N Guangdong, Tsha-yun-shan] Te, 2.VI.[19]11 / China, ex coll. R. Mell, slide AV4242 Volynkin (Coll. ZMB); 1 male, [China, N Guangdong, Linping, Shuiyuenshan, Mantsishan] M, 2.VIII.[19]15 / China, ex coll. R. Mell, slide AV4241 Volynkin (Coll. ZMB); 1 male, China, Hainan Isl., Wuzhi Shan Mts., 18°53’N 109°43’E, 20.II.–10.IV.2001, leg. local collector, ex coll. Dr. R. Brechlin, slide MWM 33570 Volynkin (Coll. MWM/ZSM).

Note. The specimens in the collection ZFMK labeled as paratypes of M. longaria belong to the polymorphic Barsine delineata.

Diagnosis. Forewing length is 10–12 mm in males and 13 mm in females. Wingspan 20–25 mm in males is 26.5 mm in females. Males significantly vary in size and forewing width. The differences between L. longaria and L. kareli are listed in the diagnosis of the latter.

Distribution. Southeastern China (Zhejiang, Guangdong and Hainan).

Longarista kareli Volynkin, sp. nov. (Figs 4–9, 18, 19)

Type material. Holotype (Figs 4, 16): male, “Myanmar (Burma), 16 km E Putao, Kaung Mu Lon village, 500 m, 28–30.IV.1998, leg. Murzin & Sinjaev”, slide MWM 33597 Volynkin (Coll. MWM/ZSM).

Paratypes: 2 males, Myanmar (Burma), 21 km E Putao, Nan Sa Bon village, 550 m, 1–5.V.1998, leg. Murzin & Sinjaev”, slides MWM 33584, MWM 33695 Volynkin (Coll. MWM/ZSM); 2 males, Thailand, Changwat Chiang Rai, 1 km SE of Khun-Kon, 600 m, 15.XI.1998, leg. Tibor Csővári & László Mikus, slides MWM 33585, MWM 33680 Volynkin (Coll. MWM/ZSM); 1 male, Laos, prov. Vientiane, Vang Vieng, 270m, 18°55’40’’N 102°24’49’’E, 20.IV.2017, leg. K. Černý, slide AV4132 Volynkin (Coll. CKC); 1 male, N Vietnam [Hoa Binh Province], 1400 m, Mai-chau, primary forest, 40 km SE Moc-chau, 20.50’N 104.50’E, 07–15.IV.1995, leg. Sinjaev & loc. coll., slide MWM 33571 Volynkin (Coll. MWM/ZSM).

Diagnosis. Forewing length 10–12 mm in males. Wingspan is 20–25 mm. The new species (Figs 4–9) has no external differences from L. longaria (Figs 1–3) and can be distinguished by the genitalia structure only. Compared to those of L. longaria (Figs 16, 17), the male genitalia of L. kareli (Figs 18, 19) have the much narrower and less curved uncus, the slightly more elongated tegumen, the broader juxta with weaker dentation, the broader valva, and the broader aedeagus and vesica. Female is unknown.

Distribution. The new species is found in northern Myanmar (Kachin State), northern Thailand (Chiang Rai Province), northern Laos (Vientiane Province) and northern Vietnam (Hoa Binh Province).

Etymology. The species name is dedicated to Dr. Karel Černý, an expert in Asian Arctiinae and my friend.

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Figures 20–23. Barsine spp.: male genitalia. 20, B. delineata, China, Jiangxi, slide MWM 33574 Volynkin; 21, B. bachma bachma, holotype, C Vietnam; 22, B. convexa, Taiwan, slide MWM 33589 Volynkin; 23, B. defecta defecta, type species of Barsine, Nepal, slide MWM 33925 Volynkin.

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Figures 24–28. Miltochrista spp.: male genitalia (24–25), Longarista (26) and Barsine (27–28): female genitalia. 24, M. miniata, type species of Miltochrista, Russia, slide AV2289 Volynkin; 25, M. humilis, Nepal, slide AV2351 Volynkin; 26, L. longaria, SE China, slide AV4242 Volynkin; 27, B. delineata, E China, slide AV1929 Volynkin; 28, B. bachma bachma, paratype, C Vietnam, slide AV2511 Volynkin.

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Figures 29–31. Barsine (29–30) and Miltochrista (31) spp.: female genitalia (24–25). 29, B. convexa, Taiwan, slide MWM 33590 Volynkin; 30, B. defecta defecta, NE India, slide AV1998 Volynkin; 31, M. miniata, Russia, slide AV2289 Volynkin.

Acknowledgements I express my sincere thanks to the following colleagues for their kind assistance provided during my studies at their institutions: Dr Marianne Espeland (ZFMK, Bonn, Germany); Dr Wolfram Mey (ZMB, Berlin, Germany); Dr. Axel Hausmann, Dr Wolfgang Speidel and Mr Ulf Buchsbaum (ZSM, Munich, Germany); Dr Alberto Zilli and Mr Geoff Martin (NHMUK, London, UK).

References

Daniel, F. (1951) Beiträge zur Kenntniss der Arctiidae Ostasiens unter besonderer Berücksichtigung der Ausbeuten von Dr. h. c. H. Höne aus diesem Gebiet (Lep.-Het.). III. Teil: Lithosiinae. Bonner zoologische Beiträge, 2 (3–4), 291–327. [in German] Fang, C. (1991) Studies of the genus Miltochrista of China (Lepidoptera: Arctiidae: Lithosiinae). Sinozoologia, 8, 383–397. [in Chinese, with English summary] Fang, C. (2000) Lepidoptera. Arctiidae. Fauna Sinica (Insecta) 19. Science Press, Beijing, 590 pp. [in Chinese, with English summary]

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