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A new genus and species of the subtribe Leptopsaltriina (Hemiptera: Cicadidae: Leptopsaltriini) from Vietnam, with a key to the genera of Leptopsaltriina

https://doi.org/10.1016/j.aspen.2021.07.011Get rights and content

Highlights

  • Vietanna Lee & Pham gen. nov. is described.

  • Vietanna hanoiensis Pham & Lee sp. nov. is described from Vietnam.

  • The new genus is placed in Leptopsaltriina of Leptopsaltriini in Cicadinae.

  • This new genus is morphologically similar to Tanna.

  • A key to the genera of Leptopsaltriina is provided.

Abstract

Vietanna Lee & Pham, gen. nov. and Vietanna hanoiensis Pham & Lee, sp. nov. are described based on a cicada specimen from Hanoi, Vietnam and placed in the subtribe Leptopsaltriina Moulton, 1923 of the tribe Leptopsaltriini Moulton, 1923 in the subfamily Cicadinae Latreille, 1802 (Hemiptera: Cicadidae). This new genus is morphologically similar to Tanna Distant, 1905 but distinguished from Tanna by the timbal cover exposing the inner part of timbal, the male abdominal epipleurite 3 with a distinct oblique linear fold, the male abdominal sternites without tubercle-like projections, and the aedeagus bifurcate at the apex. A key to the genera of Leptopsaltriina is provided.

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Introduction

The subtribe Leptopsaltriina Moulton, 1923, belonging to the tribe Leptopsaltriini Moulton, 1923 in the subfamily Cicadinae Latreille, 1802, currently contains nine genera according to Lee (2016): Aetanna Lee, 2014, Cabecita Lee, 2014, Formocicada Lee & Hayashi, 2004, Galgoria Lee, 2016, Inthaxara Distant, 1913, Leptopsaltria Stål, 1866, Nabalua Moulton, 1923, Taiwanosemia Matsumura, 1917, and Tanna Distant, 1905.

Leptopsaltriina had been treated as one of the subtribes within the tribe Cicadini Latreille, 1802 of the subfamily Cicadinae Latreille, 1802 since Lee and Hill (2010) placed 14 genera in the subtribe Leptopsaltriina [Purana Distant, 1905, Maua Distant, 1905, Formosemia Matsumura, 1917, Leptopsaltria, Tanna, Nabalua, Taiwanosemia, Gudaba Distant, 1906, Euterpnosia Matsumura, 1917, Calcagninus Distant, 1892, Neocicada Kato, 1932, Leptosemia Matsumura, 1917, Puranoides Moulton, 1917, and Terpnosia Distant, 1892] and suggested two other genera as possible members of the subtribe [Inthaxara and Formocicada].

Lee (2012a) redefined Terpnosia and moved it into the subtribe Psithyristriina Distant, 1905 and at the same time resurrected Yezoterpnosia Matsumura, 1917 from junior synonymy with Terpnosia to place it in Leptopsaltriina. Lee, 2012b, Lee, 2013 described Paratanna Lee, 2012 and Miniterpnosia Lee, 2013, respectively, and placed them in Leptopsaltriina.

Later, Leptopsaltriina was elevated to the tribe level, becoming Leptopsaltriini Moulton, 1923, by Lee and Emery (2013), who placed six subtribes under Leptopsaltriini [Puranina Lee, 2013, Leptopsaltriina, Mosaicina Lee, 2013, Gudabina Lee, 2013, Euterpnosiina Lee, 2013, and Leptosemiina Lee, 2013]. Lee (2014) and Lee (2016) followed this classification.

A new species from Vietnam is described in the latter part of the present paper based on a specimen found in the collection of the Vietnam National Museum of Nature (VNMN), Hanoi, Vietnam. This new species is morphologically very similar to the species of Tanna Distant, 1905 and might have been placed under Tanna if it weren’t for a few strongly distinctive characteristics unseen in the Tanna species, such as the timbal cover exposing the inner part of timbal, the male abdominal epipleurite 3 with a distinct oblique linear fold, the male abdominal sternites without tubercle-like projections, and the aedeagus bifurcate at the apex. Thus, a new genus, Vietanna Lee & Pham, gen. nov., is erected in the present paper to accommodate this new species and is placed under Leptopsaltriina as Tanna is.

A key to all the ten genera, including the new genus, of the subtribe Leptopsaltriina is provided in this paper.

Section snippets

Material and methods

Morphological measurements for the new species were made in millimeters with Vernier calipers. Holotype of the new species is deposited in the Vietnam National Museum of Nature (VNMN), Hanoi, Vietnam.

The male genitalia of the holotype were examined and photographed using a dissecting microscope (Leica MZ7 5). Images of the genitalia were enhanced using Photoshop 7.0 software to increase the depth of field.

Taxonomy

Subfamily Cicadinae Latreille, 1802

Tribe Leptopsaltriini Moulton, 1923

Diagnosis. Head including eyes about as wide as or narrower than mesonotum. Posterior pronotal collar very narrow. Wings hyaline. Male operculum small, scale-like. Male abdominal sternite III (and sometimes sternite IV) with tubercle-like projection on each lateral surface in many genera. Male abdominal sternite VII distinctly separated from tergite 7 by folding [See Lee and Emery (2013)].

Included subtribes (6). Puranina Lee,

Declaration of Competing Interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Acknowledgments

The present study was supported by the Vietnam National Foundation for Science and Technology Development (NAFOSTED) under the grant number 106-NN.05-2016.04, Vietnam, and the Fulbright Program for the 2019 Fulbright Vietnamese Scholar Program. The Vietnam Academy of Science and Technology supported the first author with the senior researchers program.

References (7)

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Cited by (3)

  • A new genus and species of the subtribe Leptopsaltriina (Hemiptera: Cicadidae: Leptopsaltriini) from Sabah, Malaysia

    2022, Journal of Asia-Pacific Biodiversity
    Citation Excerpt :

    Thus, a new genus, Brevitanna gen. nov., is erected here to accommodate this new species and is placed under Leptopsaltriina. A key is provided for the eleven genera of Leptopsaltriina, including the new genus, by revising the work of Pham and Lee (2021). The holotype of the new species will be deposited in the Korea National Insect Collection of the Korea National Arboretum in Pocheon, Korea.

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