Organisms Diversity & Evolution

, Volume 15, Issue 3, pp 471–488 | Cite as

Review of the Plangia graminea (Serville) complex and the description of new Plangia species from East Africa (Orthoptera: Phaneropteridae, Phaneropterinae) with data on habitat, bioacoustics, and chromosomes

  • Claudia Hemp
  • Klaus-Gerhard Heller
  • Elżbieta Warchałowska-Śliwa
  • Beata Grzywacz
  • Andreas Hemp
Original Article

Abstract

The Plangia graminea complex is partly reviewed and two new species of Plangia are described, Plangia multimaculata n. sp. from savanna habitats and Plangia satiscaerulea n. sp. from the submontane zones in northern Tanzania. Plangia compressa (Walker 1869) is synonymized with P. graminea (Serville, 1838). Data on habitat, bioacoustics, and chromosomes are provided. Both analyzed Plangia species showed the same chromosomal number. Compared to other investigated African Phaneropterinae, Plangia had a reduced chromosome number and thus shows a derived condition in its genome. The sex chromosomes differed morphologically in both investigated species of Plangia suggesting different mechanisms leading to these differences. Niche specialization and the male calling song are discussed as drivers for speciation in fully alate and thus mobile taxa.

Keywords

New species Bioacoustics Chromosomes Speciation Tanzania Mt Kilimanjaro Eastern Arc Mountains 

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Copyright information

© Gesellschaft für Biologische Systematik 2015

Authors and Affiliations

  • Claudia Hemp
    • 1
  • Klaus-Gerhard Heller
    • 2
  • Elżbieta Warchałowska-Śliwa
    • 3
  • Beata Grzywacz
    • 3
  • Andreas Hemp
    • 4
  1. 1.Department of Animal Ecology and Tropical Biology (Zoology III)University of WürzburgWürzburgGermany
  2. 2.MagdeburgGermany
  3. 3.Institute of Systematics and Evolution of AnimalsPolish Academy of SciencesKrakówPoland
  4. 4.Department of Plant SystematicsUniversity of BayreuthBayreuthGermany

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