ZooKeys 310: 1–6, doi: 10.3897/zookeys.310.5125
A new species of Stenoloba Staudinger, 1892 from China (Lepidoptera, Noctuidae, Bryophilinae)
Oleg Pekarsky 1,†, Aidas Saldaitis 2,‡
1 H-1068 Budapest, Felsőerdősor u. 16-18, Hungary
2 Nature Research Centre, Akademijos str. 2, LT–08412 Vilnius-21, Lithuania

Corresponding author: Oleg Pekarsky (opbp@t-online.hu)

Academic editor: D. Lafontaine

received 13 March 2013 | accepted 12 June 2013 | Published 17 June 2013

(C) 2013 Oleg Pekarsky. This is an open access article distributed under the terms of the Creative Commons Attribution License 3.0 (CC-BY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

For reference, use of the paginated PDF or printed version of this article is recommended.


A new species of Stenoloba from the olivacea species group, Stenoloba solaris, sp. n. (Lepidoptera, Noctuidae), is described from Yunnan, China. Illustrations of the male holotype and its genitalia are provided. A diagnostic comparison is made with Stenoloba albistriata Kononenko & Ronkay, 2000, Stenoloba olivacea (Wileman, 1914), and Stenoloba benedeki Ronkay, 2001 (Fig. 4).


Lepidoptera, Noctuidae, Stenoloba, new species, China


Stenoloba Staudinger, 1892 is an East Asian genus of the subfamily Bryophilinae. The first comprehensive revisions of the genus were published by Kononenko and Ronkay (2000, 2001) and Ronkay (2001) based on the East Palaearctic and northern Oriental species.

Subsequently, several articles have increased taxonomic knowledge of this large and very diverse genus including most notably a 2010 publication by Behounek & Kononenko which listed 75 species arranged into 14 species-groups. Recently an additional three new species were described from the Oriental region (Pekarsky 2011), (Sohn and Tzuoo 2012), (Pekarsky et al. in press).

Descriptions of Chinese Stenoloba have rapidly increased in the last two decades. Chen (1999) listed only seven species from China, whereas a more comprehensive review of the Chinese Stenoloba, published by Han and Kononenko (2009), contained 37 species. This paper describes one more new species and found with the recent and intensive exploration of the Chinese insect fauna and further future discoveries are predicted.

During a spring expedition to north-west Yunnan, a striking specimen of an undescribed Stenoloba was collected. The new species, described below, resembles members of the Stenoloba olivacea species-group, especially Stenoloba albistriata Kononenko & Ronkay, 2000, Stenoloba olivacea (Wileman, 1914) and Stenoloba benedeki Ronkay, 2001, but displays clearly recognisable external and genital differences.

Abbreviations of material depositories: GBG/ZSM = Gottfried Behounek (Grafing, Germany)/Zoologische Staatssammlung, München (Germany); HNHM = Hungarian Natural History Museum, Budapest (Hungary); ZFMK = Zoologische Forschungsistitut und Museum Alexander Koenig (Bonn, Germany).

Systematic accounts
Type material.

Holotype Male (Fig. 1). China, NW Yunnan, Lijiang/Zhongdian near Tuguancum, 27°29'700"N, 99°53'700"E, 24–25.V.2012, 3200 m, leg. A. Floriani; slide No.: OP1780m (coll. GBG/ZSM).


The name “solaris” refers to the orange circular patch at the reniform stigma resembling the rising sun.


The new species belongs to the olivacea species-group and externally resembles Stenoloba albistriata (Fig. 2) and Stenoloba olivacea (Fig. 3), but is clearly separable from them by both wing pattern and genitalia. The most prominent distinguishing feature, unique within the genus, is the presence of circular orange patches in the forewing basal area and in the reniform stigma. Stenoloba solaris differs from all related species by its forewing’s bright lettuce-green colour, as opposed to the olive ground colour and dark grey hindwings of the other species. The specific features of the male genitalia can be found in the shape of the uncus, juxta, and valvae, and in the structure of the vesica. The male genitalia of Stenoloba solaris (Figs 6, 7) differ from those of Stenoloba albistriata (Figs 8, 9) by the wider base of the uncus, the wider, shorter and less curved valvae, and by the rounded juxta with straight lateral margins. The uncus of Stenoloba albistriata is constricted at the base and dilated medially, the longer and narrower valvae have more curved costal margins, and the juxta has concave lateral margins. The other somewhat similar species, Stenoloba olivacea (Figs 10, 11) and Stenoloba benedeki (Figs 12, 13) each have a longer uncus, rounded juxta, and a large, medially positioned cornuti field consisting of fine spiculi and the terminal cornutus is either small and nail-like (Stenoloba olivacea) or large and thorn-like (Stenoloba benedeki). In addition, the clasping apparatus of the latter two species is significantly larger than in the new species, but the size of the aedeagus and vesica is practically the same.


Male (Fig. 1). Wingspan 34 mm. Head and thorax lettuce green; collar with a row of black scales at base forming black line; tegulae edged by black line; abdomen blackish grey; forewing relatively elongated, with costa remarkably arched, apex finely pointed, outer margin oblique, ground colour lettuce green with dark-grey area medially; wing pattern well marked with well-developed cross-lines; basal field with circular orange patch bordered with white fascia distally; cross-lines black, basal line strongly marked; subbasal line strong, curved, bordered by white fascia proximally; antemedial line waved, oblique with wide white fascia; lower part of medial area dark grey; medial line nearly straight, slightly bent in middle; postmedial line undulate with white fascia; subterminal and terminal lines formed by large black arrowheads. Noctuid maculation typical and well developed; large orange reniform patch, rounded, defined by black scales; inner edge of stigma forming prominent semilunar arch; orbicular stigma black, dot-like; claviform stigma present as diffuse dark streak; cilia dark grey checkered with white. Hindwing grey, discal spot dark grey, terminal line heavy black. Female unknown. Male genitalia (Figs 6, 7). Uncus short and strong, wide at base and tapering towards apex; tegumen somewhat shorter than vinculum; transtilla relatively wide; juxta wide, rounded quadrangular with triangular cleft on posterior margin; vinculum strong, V-shaped; valva simple, elongate, evenly tapering distally and apex rounded, with a few short spine-like setae at apical margin; sacculus elongate, broad; costa slightly concave; clasper forming long, narrow, dorsally dentate plate. Aedeagus short and straight; vesica bulb-like, everted posteriorly, recurved ventrally; medial part of vesica with three diverticula, one with large, stout cornutus.

Biology and distribution.

The single male was collected at ultraviolet light on 24–25 May 2012 near Zhongdian in northwest China’s Yunnan province in the remote Baima Xue mountain range (Fig. 5). The new species was collected at an elevation of 3200 meters in a wide river valley near mountain mixed forests dominated by various conifer trees, bushes and rhododendron. Many other spring Noctuidae species were collected there at that time including Panolis pinicortex Draudt, 1950, Orthosia reserva Ronkay, Ronkay, Gyulai & Hacker, 2010 and Hada antonraui Gyulai, Ronkay & Saldaitis, 2011.

Figures 1–5.

Stenoloba spp. adults and biotope. 1 Stenoloba solaris, sp. n., male, holotypus, Yunnan, China (GBG/ZSM) 2 Stenoloba albistriata, male, paratypus, N. Vietnam (ZFMK) 3 Stenoloba olivacea, male, Taiwan (HNHM) 4 Stenoloba benedeki, male, paratypus, N. Vietnam (HNHM) 5 Type locality of Stenoloba solaris, sp. n. China, NW Yunnan, Lijiang/Zhongdian near Tuguancum, 27°29'700"N, 99°53'700"E.

Figures 6–13.

Stenoloba spp. male genitalia. 6 Stenoloba solaris, sp. n., male, China, capsule, prep. OP1780m 7 Stenoloba solaris, sp. n., male, China, aedeagus, prep. OP1780m 8 Stenoloba albistriata, male, Vietnam, capsule, prep. LR10566m 9 Stenoloba albistriata, male, Vietnam, aedeagus, prep. LR10566m 10 Stenoloba olivacea, male, Taiwan, capsule, prep. LR7131m 11 Stenoloba olivacea, male, Taiwan, aedeagus, prep. LR7131m 12 Stenoloba benedeki, male, Vietnam, capsule, prep. LR7127m 13 Stenoloba benedeki, male, Vietnam, aedeagus, prep. LR7127m.


We would like to express our gratitude to László Ronkay (HNHM, Budapest) for critical comments on the manuscript, and help with photos of the adults and genitalia slides of Stenoloba albistriata, Stenoloba olivacea and Stenoloba benedeki, and to Gábor Ronkay (Budapest, Hungary) for access of his extensive private collection. The authors are grateful to Tomas Zubacikas (Vilnius, Lithuania) for assistance with imago pictures.

Behounek G, Kononenko VS (2010) Fourteen new species of the genus Stenoloba Staudinger, 1892 from South East Asia (Lepidoptera: Noctuidae, Bryophilinae). Zootaxa 2679: 1-31.
Chen YX (1999) Lepidoptera, Noctuidae. In: Zhu HF et al. (Ed) Fauna Sinica Insect, Vol. 16. Science Press, Beijing, 1596 pp.
Han HL, Kononenko VS (2009) A review of the genus Stenoloba Staudinger, 1892 from China, with description of 6 new species and 7 new records for China (Lepidoptera: Noctuidae, Bryophilinae). Zootaxa 2268: 1-22.
Kononenko VS, Ronkay L (2000) A revision of the genus Stenoloba Staudinger, 1892 (Lepidoptera, Noctuidae, Bryophilinae) with description of 25 new species and 3 new subspecies from East Asia (I). Insecta Koreana, 17 (3): 137-174.
Kononenko VS, Ronkay L (2001) A revision of the genus Stenoloba Staudinger, 1892 (Lepidoptera, Noctuidae, Bryophilinae) with description of 15 new species and 3 new subspecies from East Asia (II). Insecta Koreana, 18 (2): 95-121.
Pekarsky O (2011) A new Stenoloba Staudinger species from China (Lepidoptera, Noctuidae, Bryophilinae). ZooKeys 108: 67-72. doi: 10.3897/zookeys.108.1208
Pekarsky O, Dvořák M, Ronkay G (in press) Three new species of Stenoloba Staudinger, 1892 from Southeast Asia (Lepidoptera, Noctuidae, Bryophilinae). Fibigeriana Supplement Vol. I. Heterocera Press, Budapest.
Ronkay L (2001) New Stenoloba Staudinger, 1892 species from Taiwan and Vietnam (Lepidoptera: Noctuidae, Bryophilinae). Annales Historico-Naturales Musei Nationalis Hungarici, Vol. 93, Budapest 2001, 219–229.
Sohn JC, Tzuoo HR (2012) Two new species of Stenoloba (Lepidoptera: Noctuidae) from East Asia with the first description of S. nora female genitalia. Journal of Asia-Pacific Entomology 15: 241-244. doi: 10.1016/j.aspen.2011.11.005