Calling songs and duets of two new species in the Amblycorypha rotundifolia complex (Tettigoniidae, Phaneropterinae)

Two new species in the rotundifolia complex of Amblycorypha from the southern Appalachian Mountains of the USA are described. The calling songs and duets of these two phaneropterine katydids are characterized and discussed. Unlike other members of the rotundifolia complex, Amblycorypha zipticka sp....

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Main Authors: Timothy G. Forrest, Jennifer A. Hamel, C. Tate Holbrook
Format: Article
Language:English
Published: Pensoft Publishers 2025-08-01
Series:Journal of Orthoptera Research
Online Access:https://jor.pensoft.net/article/145640/download/pdf/
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author Timothy G. Forrest
Jennifer A. Hamel
C. Tate Holbrook
author_facet Timothy G. Forrest
Jennifer A. Hamel
C. Tate Holbrook
author_sort Timothy G. Forrest
collection DOAJ
description Two new species in the rotundifolia complex of Amblycorypha from the southern Appalachian Mountains of the USA are described. The calling songs and duets of these two phaneropterine katydids are characterized and discussed. Unlike other members of the rotundifolia complex, Amblycorypha zipticka sp. nov. and A. monticola sp. nov. have multicomponent calling songs. The songs of Amblycorypha zipticka sp. nov. have two syllable types that differ in their rates with temperature (1.5/s and 3.8/s at 25oC). Male A. monticola sp. nov. emit syllables that are grouped into regular echemes. Syllable and echeme rates are temperature dependent. Syllable rates of A. monticola sp. nov. are the fastest in the rotundifolia complex (45/s at 25°C). While calling, males of both species produce ticks that resemble the tick responses of females during duets. As predicted, the timing of the males’ ticks within their songs occurs when female replies are expected, and their timing does not change when they call alone or in duets with females. These findings are discussed regarding acoustic countermeasures to competitor eavesdropping and the evolution of signal complexity in the phaneropterines.
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series Journal of Orthoptera Research
spelling doaj-art-74b2ba60e6b74adeb57c48e86d4a316f2025-08-03T07:30:46ZengPensoft PublishersJournal of Orthoptera Research1937-24262025-08-0134223324810.3897/jor.34.145640145640Calling songs and duets of two new species in the Amblycorypha rotundifolia complex (Tettigoniidae, Phaneropterinae)Timothy G. Forrest0Jennifer A. Hamel1C. Tate Holbrook2University of North Carolina at AshevilleElon UniversityCollege of Coastal GeorgiaTwo new species in the rotundifolia complex of Amblycorypha from the southern Appalachian Mountains of the USA are described. The calling songs and duets of these two phaneropterine katydids are characterized and discussed. Unlike other members of the rotundifolia complex, Amblycorypha zipticka sp. nov. and A. monticola sp. nov. have multicomponent calling songs. The songs of Amblycorypha zipticka sp. nov. have two syllable types that differ in their rates with temperature (1.5/s and 3.8/s at 25oC). Male A. monticola sp. nov. emit syllables that are grouped into regular echemes. Syllable and echeme rates are temperature dependent. Syllable rates of A. monticola sp. nov. are the fastest in the rotundifolia complex (45/s at 25°C). While calling, males of both species produce ticks that resemble the tick responses of females during duets. As predicted, the timing of the males’ ticks within their songs occurs when female replies are expected, and their timing does not change when they call alone or in duets with females. These findings are discussed regarding acoustic countermeasures to competitor eavesdropping and the evolution of signal complexity in the phaneropterines.https://jor.pensoft.net/article/145640/download/pdf/
spellingShingle Timothy G. Forrest
Jennifer A. Hamel
C. Tate Holbrook
Calling songs and duets of two new species in the Amblycorypha rotundifolia complex (Tettigoniidae, Phaneropterinae)
Journal of Orthoptera Research
title Calling songs and duets of two new species in the Amblycorypha rotundifolia complex (Tettigoniidae, Phaneropterinae)
title_full Calling songs and duets of two new species in the Amblycorypha rotundifolia complex (Tettigoniidae, Phaneropterinae)
title_fullStr Calling songs and duets of two new species in the Amblycorypha rotundifolia complex (Tettigoniidae, Phaneropterinae)
title_full_unstemmed Calling songs and duets of two new species in the Amblycorypha rotundifolia complex (Tettigoniidae, Phaneropterinae)
title_short Calling songs and duets of two new species in the Amblycorypha rotundifolia complex (Tettigoniidae, Phaneropterinae)
title_sort calling songs and duets of two new species in the amblycorypha rotundifolia complex tettigoniidae phaneropterinae
url https://jor.pensoft.net/article/145640/download/pdf/
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AT jenniferahamel callingsongsandduetsoftwonewspeciesintheamblycorypharotundifoliacomplextettigoniidaephaneropterinae
AT ctateholbrook callingsongsandduetsoftwonewspeciesintheamblycorypharotundifoliacomplextettigoniidaephaneropterinae