Karyotypes of Two Indian Grasshoppers of Mecopodinae(Orthoptera-Tettigoniidae).

Aswathanarayana, N. V.; Ashwath, S. K.

doi:10.1508/cytologia.59.285

Cited by 5 publications

(2 citation statements)

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“…Up to now, cytotaxonomic studies of the Mecopodinae are scarce. Karyological information is available only for two Australian species of Austromecopoda (Rentz et al 2006), one African species of Philoscirtus (Hemp et al 2015) and some Indian (Asana et al 1938;Aswathanarayana & Aswath 1994), Japanese (Hareyama 1932) and Malaysian (Hewitt 1979, Bugrov et al 2004) species belonging to the genus Mecopoda. Here the chromosome number was 2n = 29 or 27 in males.…”

Section: Discussionmentioning

confidence: 99%

“…The chromosomes were characterized by a high level of differentiation among populations and a distinct morphology (fN = 32, 54, 56). They consisted of two to fourteen bi-armed autosomes (meta-/submeta-/subacrocentric) and a meta-/submetacentric X chromosome (Aswathanarayana & Aswath 1994, see review Warchałowska-Śliwa 1998, Bugrov et al 2004). Our results corroborate previous studies that revealed that Mecopoda showed an advanced karyotype evolution.…”

Section: Discussionmentioning

confidence: 99%

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Bioacoustics and systematics of Mecopoda (and related forms) from South East Asia and adjacent areas (Orthoptera, Tettigonioidea, Mecopodinae) including some chromosome data

Heller¹,

Baker

Ingrisch

et al. 2021

Zootaxa

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Bush-crickets (or katydids) of the genus Mecopoda are relatively large insects well-known for their sounds for centuries. Bioacoustic studies in India and China revealed a surprisingly large diversity of sound patterns. We extend these studies into the tropics of South East Asia using integrative taxonomy, combining song analysis, morphology of sound producing organs and male genitalia as well as chromosomes, to get a better understanding of the phylogeny and evolution of this widespread group. Besides the closely related genus Eumecopoda, the genus Mecopoda contains some isolated species and a large group of species which we assign to the Mecopoda elongata group. Some species of this group have broad tegmina and stridulatory files with different tooth spacing patterns and produce continuous, often relatively complicated, trill-like songs. The species of another subgroup with narrower wings have all similar files. Their songs consist of echemes (groups of syllables) which differ in syllable number and syllable repetition rate and also in echeme repetition rate. Our results show that South East Asia harbours a large and certainly not yet fully explored number of Mecopoda species which are most easily and clearly identified by song. Based on the data, five new forms are described: Mecopoda mahindai Heller sp. nov., Mecopoda paucidens Ingrisch, Su & Heller sp. nov., Mecopoda sismondoi Heller sp. nov., Mecopoda niponensis vietnamica Heller & Korsunovskaya subsp. nov., Eumecopoda cyrtoscelis zhantievi Heller subsp. nov. In addition, some taxonomic changes are proposed: Eumecopoda Hebard, 1922 stat. rev., Paramecopoda Gorochov, 2020, syn. nov. of Eumecopoda Hebard, 1922, Mecopoda javana (Johansson, 1763) stat. nov. (neotype selected) with M. javana minahasa Gorochov, 2020 stat. nov., M. javana darevskyi Gorochov, 2020 stat. nov., M. javana buru Gorochov, 2020 stat. nov., Mecopoda macassariensis (Haan, 1843) stat. rev., Mecopoda ampla malayensis Gorochov, 2020 syn. nov., Mecopada ampla javaensis Gorochov, 2020 syn. nov., Mecopoda fallax aequatorialis Gorochov, 2020 syn. nov., the last three are all synonyms of Mecopoda himalaya Liu, 2020, Mecopoda yunnana Liu 2020, stat. nov.

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