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A New Genus and Species of Cicadina from Australia Belonging to a New Subtribe of the Tribe Risiini (Homoptera, Dictyopharidae)

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Abstract

A new monotypic genus Deuterrisius gen. n. with the type species Deuterrisius tobiasi sp. n. is described. This is the second known representative of the tribe Risiini in the fauna of Australia and of Notogaea as a whole. The new genus is most closely related to the previously described, also Australian genus Austrorgerius Woodward; these two genera are united into a new subtribe Deuterrisiina subtrib. n. The new genus has a unique structure of the interalar scutellum whose apex, unlike that in all other Cicadina, is formed by a section of the metanotum; an incomplete realization of this structural variant is observed in the genus Austrorgerius.

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Notes

  1. V.I. Tobias (1929–2011), a researcher at the Zoological Institute of the Russian Academy of Sciences and an eminent expert in Braconidae parasitoid wasps, visited Australia in 1978 and collected insects in the field together with the Australian colleagues.

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ACKNOWLEDGMENTS

I am sincerely grateful to R.A. Rakitov (Paleontological Institute of the Russian Academy of Sciences, Moscow; PIN) for making micrographs on the TESCAN VEGA scanning electron microscope, to D.E. Shcherbakov (PIN) for making light photos, to Mr. Mick Webb and Mr. Ken Werrifield (London, UK) for the kindly provided photos of the paratype of Austrorgerius collinus kept at the Natural History Museum in London. Thanks are also due to V.M. Gnezdilov (ZIN) and D.E. Shcherbakov (PIN) for assistance in the preparation of this paper.

Funding

This work was based on the collections of the Zoological Institute of the Russian Academy of Sciences (State Research Assignment 122031100272-3).

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  1. Zoological Institute, Russian Academy of Sciences, 199034, St. Petersburg, Russia

    A. F. Emeljanov

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  1. A. F. Emeljanov
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Correspondence to A. F. Emeljanov.

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Statement on the welfare of animals. All the applicable international, national, and/or institutional guidelines for the care and use of animals were followed. All the procedures performed in studies involving animals were in accordance with the ethical standards of the institution or practice at which the studies were conducted. The author of this work declares that he has no conflicts of interest.

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Emeljanov, A.F. A New Genus and Species of Cicadina from Australia Belonging to a New Subtribe of the Tribe Risiini (Homoptera, Dictyopharidae). Entmol. Rev. 103, 851–860 (2023). https://doi.org/10.1134/S0013873823080043

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