@article {57891, title = {Processing of simple and complex acoustic signals in a tonotopically organized ear}, year = {2014}, abstract = {

Processing of complex signals in the hearing organ remains poorly understood. This paper aims to contribute to this topic by presenting investigations on the mechanical and neuronal response of the hearing organ of the tropical bushcricket species Mecopoda elongata to simple pure tone signals as well as to the conspecific song as a complex acoustic signal. The high-frequency hearing organ of bushcrickets, the crista acustica (CA), is tonotopically tuned to frequencies between about 4 and 70 kHz. Laser Doppler vibrometer measurements revealed a strong and dominant low-frequency-induced motion of the CA when stimulated with either pure tone or complex stimuli. Consequently, the high-frequency distal area of the CA is more strongly deflected by low-frequency-induced waves than by high-frequency-induced waves. This low-frequency dominance will have strong effects on the processing of complex signals. Therefore, we additionally studied the neuronal response of the CA to native and frequency-manipulated chirps. Again, we found a dominant influence of low-frequency components within the conspecific song, indicating that the mechanical vibration pattern highly determines the neuronal response of the sensory cells. Thus, we conclude that the encoding of communication signals is modulated by ear mechanics.

}, keywords = {bushcricket, crista acustica, Electrophysiology, insect hearing, laser Doppler vibrometry, Tettigoniidae}, doi = {10.1098/rspb.2014.1872}, url = {https://royalsocietypublishing.org/doi/10.1098/rspb.2014.1872https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2014.1872}, author = {Hummel, Jennifer and Wolf, Konstantin and K{\"o}ssl, Manfred and Nowotny, Manuela} } @article {53547, title = {Studies in Australian Tettigoniidae: Australian Pseudophylline katydids (Tettigoniidae; Pseudophyllinae; Phyllomimini)}, journal = {Zootaxa}, volume = {2566}, year = {2010}, month = {Jan-08-2011}, pages = {1}, abstract = {

The genus Acauloplacella Karny is recorded from Australia. Four new species are described, all in the subgenus Acauloplacella. The Australian representatives are related to those in New Guinea. All species occur in rainforest, especially along the margins. They are known from the east coast from disjunct populations from Iron Range south to near Townsville, Qld. They are nocturnal plant feeders with males uttering a stuttering call after dark.

}, keywords = {Acauloplacella, biology, Orthoptera, Phyllomimini, Pseudophyllinae, taxonomy, Tettigoniidae}, issn = {1175-5326}, doi = {10.11646/zootaxa.2566.110.11646/zootaxa.2566.1.1}, url = {https://biotaxa.org/Zootaxa/issue/view/zootaxa.2566.1https://biotaxa.org/Zootaxa/article/view/zootaxa.2566.1.1https://biotaxa.org/Zootaxa/article/viewFile/44075/37973}, author = {D. C. F. Rentz and Su, You Ning and Norihiro Ueshima} } @article {53378, title = {A new species and a new record of genus Hexacentrus Serville, 1831 (Orthoptera: Tettigoniidae: Hexacentrinae) from India}, journal = {Zootaxa}, volume = {4526}, year = {2018}, month = {Mar-12-2018}, pages = {547}, abstract = {

The paper deals with a new record Hexacentrus japonicus Karny, 1907 and a new species Hexacentrus bifurcata sp. nov. from India. Necessary and important illustrations with SEM images of stridulatory file of Hexacentrus japonicus and Hexacentrus bifurcata sp. nov. are provided. A key to the Indian species of Hexacentrus and morphometric ranges of all the species have also been included. Type specimens have been preserved for further investigation in Zoology Department, Aligarh Muslim University (ZDAMU).

}, keywords = {Hexacentrinae, India, new species, Orthoptera, Tettigoniidae}, issn = {1175-5326}, doi = {10.11646/Zootaxa.4526.410.11646/zootaxa.4526.4.7}, url = {https://biotaxa.org/Zootaxa/issue/view/Zootaxa.4526.4https://biotaxa.org/Zootaxa/article/view/zootaxa.4526.4.7} } @article {53096, title = {Review of genus Conocephalus Thunberg, 1815 (Orthoptera: Tettigoniidae: Conocephalinae) with one new species from India}, journal = {Zootaxa}, volume = {4461}, year = {2018}, month = {Oct-08-2019}, pages = {381}, abstract = {

The present paper includes description of one new species Conocephalus (Anisoptera) rentzi sp. nov. and some known species of genus Conocephalus Thunberg, 1815 from India. Brief diagnosis of genus and subgenus with a key to species of subgenus Anisoptera and morphometric ranges of all the species are provided. The distributional map and illustrations of all the described and reported species with SEM photography of stridulatory files of C. (Anisoptera) maculatus \& C. (Anisoptera) rentzi sp. nov. have also been included. All type specimens have been deposited for posterity in the Zoology Department, Aligarh Muslim University, India (ZDAMU).

}, keywords = {Conocephalinae, Conocephalus, India, new species, Tettigoniidae}, issn = {1175-5326}, doi = {10.11646/zootaxa.4464.3.4}, url = {https://biotaxa.org/Zootaxa/article/view/zootaxa.4464.3.4}, author = {Mohd Kaleemulla Farooqi and Mohd Kamil Usmani} } @article {52731, title = {Two new katydids of the genus Melanonotus from Costa Rica with Comments on their life history strategies (Tettigoniidae pseudophyllinae)}, journal = {Entomological News}, volume = {86}, year = {1975}, pages = {129-140}, chapter = {129}, abstract = {

Two new katydids are described from Costa Rica extending the known range of\ Melanonotus\ northward. The contrast in life history and morphology between primary forest katydids and secondary growth or temperate species is discussed. The absence of regular nightly stridulation and morphological differences such as the extremely long antennae of the two\ Melanonotus\ species and other primary forest epiphyllic katydids are suggested as adaptations to bat predation.

}, keywords = {bat predation, behaviour, Costa Rica, Melanonotus, Pseudophyllinae, Tettigoniidae}, author = {D. C. F. Rentz} } @article {52581, title = {Antennal sensilla of the armoured ground cricket, Eugaster powysi Kirby, 1891 (Orthoptera, Tettigoniidae, Hetrodinae)}, journal = {Bulletin de l{\textquoteright}Institut Scientifique, Rabat, Section Sciences de la Vie}, volume = {39}, year = {2017}, pages = {1-17}, chapter = {1}, abstract = {

Sensilla on the antennae of the adult armoured ground cricket, Eugaster powysi, were studied using scanning electron microscopy to determine the sensilla morphology and their possible chemo- and mechanoreceptive functions for food detection. Twelve types or subtypes occur in males and thirteen in females: aporous sensilla chaetica (62.6 \% of total sensilla in males, 63.5\% in females) with a tactile mechanoreceptive function; uniporous sensilla chaetica of three subtypes (12.5-12.7\%) with a contact chemoreceptive function; multiporous sensilla trichodea (5.6-7.9\%); multiporous sensilla basiconica of three subtypes (13.1-13.9\%); multiporous sensilla coeloconica (0.8-0.9\%), all multiporous sensilla being olfactory receptors; aporous sensilla coeloconica (2.2\%) and aporous sensilla coelocapitula (0.1\% in female) with a possible thermo- hygroreceptive function; aporous B\öhm sensilla (0.4-0.5\%) and sensilla campaniformia (0.5-0.6\%) which are proprioceptors. These results are related to the behaviour of Eugaster and compared with those obtained in other Orthoptera, Mantodea and Blattodea.

}, keywords = {antenna, behaviour, Eugaster, sensilla, Tettigoniidae}, author = {Michel J. Faucheux} } @article {51469, title = {First record of subfamily Mecopodinae (Orthoptera: Tettigoniidae) from Bihar along with description of Indian species}, journal = {Journal of Entomology and Zoology Studies 2017}, volume = {5}, year = {2017}, pages = {803-807}, chapter = {803}, abstract = {The present study was based on the specimens of Mecopodinae during the course of a survey from (01/03/2015 to 30/03/2015) from various agricultural areas of different regions of Bihar. Four male specimens were collected from different localities and identified as a species Mecopoda elongata elongata (Linnaeus, 1758) (Orthoptera: Tettigoniidae), was newly recorded from Bihar, India. The description was based on both conventional morphological and genitalic characters. The identifying features of the species were body very large, brown in color, tibial tympana opened on both the sides, stridulatory file having 98 teeth arranged in lamelliform manner under the side of left tegmen, male subgenital plate developed conically from region of bifurcation with short styli and hind femur \& tibiae very long and large. A morphological description, as well as detailed illustrations of this species is presented. Distribution and morphometrically data is also provided.}, keywords = {India, Mecopoda elongata elongata, new record, Orthoptera, Tettigoniidae}, author = {Mohd Kaleemulla Farooqi and Mohd Kamil Usmani} } @article {11172, title = {Wing stridulation in a Jurassic katydid (Insecta, Orthoptera) produced low-pitched musical calls to attract females}, journal = {Proceedings of the National Academy of Sciences}, volume = {109}, year = {2012}, month = {Jun-03-2012}, pages = {3868 - 3873}, abstract = {

Behaviors are challenging to reconstruct for extinct species, particularly the nature and origins of acoustic communication. Here we unravel the song of Archaboilus musicus Gu, Engel and Ren sp. nov., a 165 million year old stridulating katydid. From the exceptionally preserved morphology of its stridulatory apparatus in the forewings and phylogenetic comparison with extant species, we reveal that A. musicus radiated pure-tone (musical) songs using a resonant mechanism tuned at a frequency of 6.4 kHz. Contrary to previous scenarios, musical songs were an early innovation, preceding the broad-bandwidth songs of extant katydids. Providing an accurate insight into paleoacoustic ecology, the low-frequency musical song of A. musicus was well-adapted to communication in the lightly cluttered environment of the mid-Jurassic forest produced by coniferous trees and giant ferns, suggesting that reptilian, amphibian, and mammalian insectivores could have also heard A. musicus\&$\#$39; song.

}, keywords = {biological asymmetry, biomechanics, bushcricket, call evolution, Tettigoniidae}, issn = {0027-8424}, doi = {10.1073/pnas.1118372109}, url = {http://www.pnas.org/cgi/doi/10.1073/pnas.1118372109}, author = {Gu, J.-J. and Fernando Montealegre-Zapata and Daniel Robert and Engel, M. S. and Qiao, G.-X. and Ren, D.} }