Ecologica Montenegrina 29: 51-55 (2020) This journal is available online at: www.biotaxa.org/em http://dx.doi.org/10.37828/em.2020.29.8

https://zoobank.org/urn:lsid:zoobank.org:pub:401A7E9C-BBA5-4377-9AEC-742B984EED3E

Eupterote elisavetae sp. nov. from Flores Island, Indonesia (: )

VITALY M. SPITSYN* & IVAN N. BOLOTOV

N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Northern Dvina Emb. 23, 163000, Arkhangelsk, Russia *Corresponding author: [email protected]

Received 19 February 2020 │ Accepted by V. Pešić: 25 March 2020 │ Published online 30 March 2020.

Abstract Here, we report on the first record of the genus Eupterote Hübner, [1820] (Lepidoptera: Eupterotidae) from Flores Island, East Nusa Tenggara, Indonesia. This represents the new species Eupterote elisavetae sp. nov. that is described here. Previously, two endemic eupterotid species, i.e. Ganisa floresiaca Nässig, 2009 and Pseudojana floresina Nässig & Bouyer, 2010, were known to occur on the Flores Island.

Key words: new species, zoogeography, , Wallacea, Lesser Sunda Archipelago, East Nusa Tenggara.

Introduction

Recently, numerous Lepidoptera species new to science were discovered from the East Nusa Tenggara Islands, primarily from Flores (Brechlin 2001; Zolotuhin & Witt 2005; Yakovlev 2006, 2015; Nässig et al. 2009; Zolotuhin 2009; Nässig & Bouyer 2010; Spitsyn et al. 2016, 2019; Bolotov et al. 2017, 2018; Spitsyn & Bolotov 2018; Volynkin 2019). The Eupterotidae fauna on Flores contains two endemic species: Ganisa floresiaca Nässig, 2009 and Pseudojana floresina Nässig & Bouyer, 2010 (Nässig et al. 2009; Nässig & Bouyer 2010). This study aims to describe one more Eupterotidae species from this island.

Materials and methods

The study is based on the material from the collection of the Russian Museum of Biodiversity Hotspots (RMBH), N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Arkhangelsk, Russia. The genitalia were dissected, mounted on temporary glass slides with 70% ethanol and photographed using a research stereomicroscope (AXIO Zoom.V16, Carl Zeiss, Germany). The genitalia are kept in a micro-tube with glycerin pinned to the type specimen. The images of the type specimen were taken with a Canon EOS 80D camera (Canon Inc., Tokyo, Japan).

Ecologica Montenegrina, 29, 2020, 51-55

EUPTEROTE ELISAVETAE SP. NOV. FROM FLORES ISLAND

Figure 1. Holotype male of Eupterote elisavetae sp. nov., Flores Island, Indonesia: A) upperside; B) underside. Scale bar = 10 mm. Photos: Vitaly M. Spitsyn.

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Taxonomy

Family Eupterotidae Swinhoe, 1892 Genus Eupterote Hübner, [1820] Type species: Phalaena fabia Cramer, [1779]

Eupterote elisavetae sp. nov. Figs 1-3 https://zoobank.org/urn:lsid:zoobank.org:act:95CA86F1-89F5-4DD4-BCF6-0CF3A1987751

Type material. Holotype male RMBH Sph0826: INDONESIA, East Nusa Tenggara Islands, Flores Island, Bajawa, Manulalu Ecolodge, eucalyptus plantation with fragmented areas of natural vegetation, altitude 1120 m, 8º51'45"S, 120º59'40"E, 01-02.ii.2020, E. Spitsyna leg. Diagnosis. This species is externally similar to Eupterote multiarcuata Holloway, 1976, E. naessigi Holloway, 1987, and E. chinensis Leech, 1898 but could be distinguished from these taxa by having a clear postdiscal band on both wings. The new species is much larger than Eupterote jaresia Swinhoe, 1904 and differs from the latter species by wing marking patterns. It can be distinguished from Eupterote celebica Nässig, Holloway & Beeke, 2011 by the lack of zigzag submarginal band, and by the presence of rounded spot on the forewing and two rounded spots on the hindwing. Additionally, Eupterote celebica does not have semicircular spots with silver scales. The new species differs from Eupterote multiarcuata and E. naessigi by having a well-developed apical process of the aedeagus (vs a small tubercle in those two species) and from E. celebica by having a longer vinculum with rounded apex.

Figure 2. Holotype male genitalia and aedeagus of Eupterote elisavetae sp. nov., Flores Island, Indonesia. Scale bar = 1 mm. Photos: Vitaly M. Spitsyn.

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EUPTEROTE ELISAVETAE SP. NOV. FROM FLORES ISLAND

Description. Male morphology: Wingspan 84 mm, forewing length 49 mm. Eye grey. Antenna bipectinate, yellowish-brown. Base of antenna yellow. Head brown with scarce yellow scales. Labial palpus short (equal to eye diameter), brown, with yellowish ventral side. Thorax, patagium, and tegula yellow. Legs yellow, with brown stripe dorsally. Forewing upperside ochraceous; unclear dark brown spots along costal margin; postdiscal narrow brown band; several unclear zigzag stripes between the wing base and postdiscal band; submarginal dark-brown rounded spot close to anal margin; a series of marginal spots, with three upper spots densely covered by silver scales. Hindwing upperside is similar to that of the forewing; postdiscal band slightly curved; two submarginal dark-brown rounded spots (one spot in apical part and second spot close to anal margin); unclear submarginal zigzag brownish band. Underside of both wings bright yellow; marking patterns are mostly similar to those of the wing upperside. Abdomen yellow. Male genitalia: Typical structure for the genus. Tegumen very broad, strongly sclerotized. Uncus broad, its dorsal process large, broad near the base and tapering apically. Saccus large, densely sculptured. Vinculum elongated, rounded apically. Juxta rounded, covered by saccus ventrally. Valva strongly curved, sclerotized, with a rounded apex. Aedeagus small, with a curved, claw-like apex and a spinulose field on vesica. Female: Unknown. Distribution. This species is not known beyond its type locality on Flores. Etymology. This species is dedicated to Elisaveta Spitsyna (Arkhangelsk, Russia) who collected the holotype specimen.

Figure 3. Type locality of Eupterote elisavetae sp. nov. near Bajawa, Flores Island, Indonesia. Photo: Vitaly M. Spitsyn.

Acknowledgements This study was partly supported by the Russian Ministry of Science and Higher Education (project No. АААА-А17-117033010132-2) and the Russian Foundation for Basic Research, RFBR (project No. 19-34- 90012).

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