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| Paraplangia sinespeculo Heller
in Heller, Hemp, Massa, et al., 2018.
DOI: 10.3897/jor.27.24243
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Abstract
Madagascar is a well-known hotspot of biodiversity. However, many Orthoptera, and especially the Tettigonioidea, belong to little-studied groups. Here we describe a new genus and species of bush-cricket reared from field-collected eggs. Paraplangia sinespeculo gen. nov., sp. nov. belongs to Phaneropterinae and shares diagnostic characteristics with members of the tribe Amblycoryphini and its African subtribe Plangiina stat. nov. Paraplangia, which has a chromosome number of 31 X0, differs from other African members of the tribe and subtribe such as Eurycorypha and Plangia, which both have 29 X0. In addition to morphology, we describe the male calling song, female acoustic response, and mating behavior. As calling song, the male produces two series of short syllables. At the end of the second series the female responds with signals of similar duration and spectral composition as the male sounds (peak about 8-9 kHz). To make future identification easier, a key to all genera of Phaneropterinae found in Madagascar is presented.
Key words: Amblycoryphini, bioacoustics, chromosomes, duetting, Orophus
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| Figure 1. Habitus. A. Adult male; B. Egg (lateral and ventral view, scale 5 mm); C. Nymph, 3rd March; D. Nymph, 30th March; E. Female nymph, 10th May, 10 days before imaginal molt. |
Paraplangia Heller, gen. n.
Derivatio nominis: Para, Greek = nearby; Plangia, another Plangiina genus. Paraplangia feminine.
Paraplangia sinespeculo Heller, sp. n.
Derivatio nominis: Sinespeculo (Latin = without mirror). To be treated as noun in the nominative singular.
