@article {58456, title = {Risk trading in mating behavior: forgoing anti-predatorresponses reduces the likelihood of missing terminalmating opportunities}, journal = {Behavioral Ecology and Sociobiology}, volume = {64}, year = {2010}, pages = {1485-1494}, chapter = {1485}, abstract = {

Life history theory predicts that organisms make certain adjustments to their current and future reproductive effort such that fitness is maximized. Moreover, these adjustments may be fine tuned in response to risks of attack by natural enemies. Thus, we may predict that as an organism ages it will accept increasing levels of exposure to predators during mating activities, effectively trading the risk of losing terminal mating opportunities for the risk of predation. We tested this prediction in an acoustic moth, Achroia grisella, in which females orient toward and evaluate males based on their ultrasonic calling song, and both sexes may be vulnerable to predation by insectivorous bats while in flight as well as on the substrate. In the latter situation, singing males and orienting females show silence and arrestment responses, respectively, when presented with synthetic bat echolocation signals broadcast above a threshold amplitude. We found that both males and females become less sensitive to these broadcasts over the course of their brief reproductive periods, 7 and 5 days, respectively. Over the same periods, sensitivity to male song in both males and females remains constant, and relatively little senescence in sexual behavior is observed. These results support the risk trading hypothesis, and they indicate that life history principles may apply over a very short lifespan.

}, doi = { 10.1007/s00265-010-0963-7}, author = {Marie Lafaille and Ga{\"e}lle Bimbard and Michael D. Greenfield} } @article {58182, title = {Bioacoustic of Cohnia andeana (Hebard, 1924) comb. nov. (Insecta: Orthoptera: Tettigoniidae)}, year = {2010}, abstract = {

The Ecuadorean species Dichopetala andeana Hebard, 1924, is transferred to the new genus Cohnia. Cohnia g. nov. is characterized by short pronotum, subexagonal undivided elongated female subgenital plate, regularly up-curved and coarsely serrulated ovipositor, male simple cerci and presence in male of a structure titillators-like. Cohnia andeana comb. nov. is extensively illustrated and described, its song is presented for the first time as well as some ecological data.

}, keywords = {Barbitistini, bioacoustics, Cohnia andeana comb. nov., Cohnia g. nov., Dichopetala, ecology, Odonturini, taxonomy}, doi = {10.11646/zootaxa.2661.110.11646/zootaxa.2661.1.4}, url = {https://biotaxa.org/Zootaxa/issue/view/zootaxa.2661.1https://biotaxa.org/Zootaxa/article/view/zootaxa.2661.1.4https://biotaxa.org/Zootaxa/article/viewFile/44735/38573}, author = {Buzzetti, F. M. and Fontana, P. and CAROTTI, G.} } @article {57966, title = {The Cercal Organ May Provide Singing Tettigoniids a Backup Sensory System for the Detection of Eavesdropping Bats}, year = {2010}, abstract = {

Conspicuous signals, such as the calling songs of tettigoniids, are intended to attract mates but may also unintentionally attract predators. Among them bats that listen to prey-generated sounds constitute a predation pressure for many acoustically communicating insects as well as frogs. As an adaptation to protect against bat predation many insect species evolved auditory sensitivity to bat-emitted echolocation signals. Recently, the European mouse-eared bat species Myotis myotis and M. blythii oxygnathus were found to eavesdrop on calling songs of the tettigoniid Tettigonia cantans. These gleaning bats emit rather faint echolocation signals when approaching prey and singing insects may have difficulty detecting acoustic predator-related signals. The aim of this study was to determine (1) if loud self-generated sound produced by European tettigoniids impairs the detection of pulsed ultrasound and (2) if wind-sensors on the cercal organ function as a sensory backup system for bat detection in tettigoniids. We addressed these questions by combining a behavioral approach to study the response of two European tettigoniid species to pulsed ultrasound, together with an electrophysiological approach to record the activity of wind-sensitive interneurons during real attacks of the European mouse-eared bat species Myotis myotis. Results showed that singing T. cantans males did not respond to sequences of ultrasound pulses, whereas singing T. viridissima did respond with predominantly brief song pauses when ultrasound pulses fell into silent intervals or were coincident with the production of soft hemi-syllables. This result, however, strongly depended on ambient temperature with a lower probability for song interruption observable at 21uC compared to 28uC. Using extracellular recordings, dorsal giant interneurons of tettigoniids were shown to fire regular bursts in response to attacking bats. Between the first response of wind-sensitive interneurons and contact, a mean time lag of 860 ms was found. This time interval corresponds to a bat-to-prey distance of ca. 72 cm. This result demonstrates the efficiency of the cercal system of tettigoniids in detecting attacking bats and suggests this sensory system to be particularly valuable for singing insects that are targeted by eavesdropping bats.

}, doi = {10.1371/journal.pone.0012698}, url = {https://dx.plos.org/10.1371/journal.pone.0012698}, author = {Hartbauer, Manfred and Ofner, Elisabeth and Grossauer, Viktoria and Siemers, Bj{\"o}rn M.}, editor = {Borst, Alexander} } @article {57956, title = {Sound emission and reception tuning in three cicada species sharing the same habitat}, journal = {The Journal of the Acoustical Society of America}, volume = {127}, year = {2010}, month = {Jan-03-2010}, pages = {1681 - 1688}, abstract = {

Many animal species acoustically communicate at the same place and time generating complex acoustic environments. However, the acoustic parameter space is usually structured, with each species emitting identifiable signals. While signal partitioning has been reported, very few analyses include the mechanical spectral response of auditory organs. The loud chorus generated by . The vibration pattern of L. plebejus shows traveling waves as previously observed in Ctra. atra. The spectral properties of both calling songs and tympanal auditory systems primarily indicate that each species uses its own frequency band.y, except for C. orni, which is sensitive to the lowest frequency band of its song. In contrast, female TMs are broadly tuned to the male songs. Ctra. atra females differ by tuning to frequencies slightly higher than the male song. Hence, acoustic space partitioning occurs for both emitter and receiver, but does not seem to fully preclude interference risk as some spectral overlap exists. In addition to the local physical ecology of each species, selective attention to conspecific signals is likely to be enhanced by further mechanical and neuronal processing.

}, issn = {0001-4966}, doi = {10.1121/1.3291036}, url = {http://asa.scitation.org/doi/10.1121/1.3291036}, author = {Sueur, Jerome and James F.C. Windmill and Daniel Robert} } @article {57892, title = {Acoustic-induced motion of the bushcricket (Mecopoda elongata, Tettigoniidae) tympanum}, year = {2010}, keywords = {Acoustic resonance, insect hearing, trachea, Vibration measurements}, doi = {10.1007/s00359-010-0577-6}, url = {http://link.springer.com/10.1007/s00359-010-0577-6}, author = {Nowotny, Manuela and Hummel, Jennifer and Weber, Melanie and M{\"o}ckel, Doreen and K{\"o}ssl, Manfred} } @article {57649, title = {A new species of Isophya (Orthoptera: Phaneropteridae) from the Romanian Carpathian Mountains A new species of}, year = {2010}, abstract = {

A new morphologically cryptic species from the genus Isophya Brunner von Wattenwyl is described from Ciucao Mountains in Romania: Isophya ciucasi n. sp. Diagnosis, images and a bioacoustic analysis are presented for the new species and compared with Isophya camptoxypha (Fieber), the species with a very similar morphology.

}, keywords = {bioacoustics., Isophya ciucasi n. sp., morphology}, doi = {10.2478/v10191-010-0012-9}, url = {http://archive.sciendo.com/TRAVMU/travmu.2010.53.issue--1/v10191-010-0012-9/v10191-010-0012-9.pdf}, author = {Ionut Stefan Iorgu and Elena Iulia Iorgu} } @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} } @conference {53510, title = {Acoustic sensing in snapping shrimp dominated environments}, booktitle = {Proceedings of 20th International Congress on Acoustics, ICA}, year = {2010}, abstract = {

Snapping shrimp dominate the high frequency soundscape in shallow warm waters. The noises produced by these small creatures are a result of the collapse of cavitation bubbles they produce. During the rapid collapse, the temperatures in the bubble can momentarily reach the surface temperature of the sun, and produce impulsive noise with source levels higher than 190 dB re 1 \μPa @ 1m. With millions of snapping shrimp in most warm shallow water environments, the resulting cacophony is heard in the form of a background crackle familiar to many tropical divers. The resulting ambient noise has highly non-Gaussian statistics. What implications does this have on acoustic sensing in these environments? Can signal processing techniques developed with Gaussian noise assumptions be used without significant penalty in these environments? Can these shrimp be used as sources of opportunity for sensing? To begin answering some of these questions, we present a review of some of the research on signal processing in impulsive noise. Snapping shrimp noise is modeled accurately by symmetric \α-stable distributions. Optimal signal processing in \α-stable noise is often computationally infeasible, but computationally simple near-optimal solutions can be applied with gains up to 5-10 dB. Communicating in environments with snapping shrimp noise has its own challenges. The errors due to the impulsive noise on sub-carriers of a multi-carrier communication system, or the in-phase and quadrature channels of a single carrier system are not independent. If handled inappropriately, forward error correction codes can perform poorly in such systems. However, if the dependence in the errors can be characterized, it can be exploited in the decoding process to get substantial communication performance gains. We show this through an information theoretic analysis of the communication channel with additive symmetric \α-stable noise. Finally, we turn to some applications where the snapping shrimp sounds can be used as sources of opportunity. They can serve as \“illumination\” for ambient noise imaging, where underwater objects can be imaged completely passively. They can also be used as sources for geoacoustic inversion of the surface sediment. We present some results from past experiments to show how sediment sound speed can indeed be inferred by simply listening passively to the cacophony of the shrimp.

}, author = {Chitre, Mandar} } @article {52747, title = {Sound production of two endemic Oedipodinae grasshoppers from the Iberian Peninsula: Jacobsiella imitans and Leptopternis candidus lusitanicus (Orthoptera: Acrididae)}, journal = {Italian Journal of Zoology}, volume = {77}, year = {2010}, month = {Sep-12-2010}, pages = {443 - 452}, abstract = {

In this study, which was conducted with captive specimens kept in wooden cages and separated by sex, the sounds produced by Jacobsiella imitans (Brunner, 1882) and Leptopternis candidus lusitanicus (Ebner, 1941) (Orthoptera, Acrididae) are described. Sounds were recorded with a digital audio tape recorder; the signal was digitized and then analysed with the Avisoft\® software. Two types of sound, both produced by stridulation, were recorded in these species: an interaction song, produced when specimens are disturbed by others, and a courtship song, emitted by males when mounting another individual in trying to copulate. In both species, females are mute. Data concerning the time and frequency domains of these sounds are presented. The behaviour observed by both species in nature and that displayed when interacting with other individuals and during courtship are described. The role of song as an isolation mechanism is discussed.

}, keywords = {behaviour, Jacobsiella, Leptopternis, Oedipodinae, Orthoptera, sound production}, issn = {1125-0003}, doi = {10.1080/11250000903457830}, url = {http://www.tandfonline.com/doi/abs/10.1080/11250000903457830}, author = {Larrosa, E. and M. Garcia and Presa, J. J.} } @article {50741, title = {El comportamiento ac{\'u}stico de Fenestra bohlsii Giglio-Tos (Orthoptera: Acrididae: Gomphocerinae)}, journal = {Neotropical Entomology}, volume = {39}, year = {2010}, month = {Jan-01-2010}, pages = {839 - 853}, issn = {1519-566X}, doi = {10.1590/S1519-566X2010000600001}, url = {http://www.scielo.br/scielo.php?script=sci_arttext\&pid=S1519-566X2010000600001\&lng=es\&nrm=iso\&tlng=es}, author = {Lorier, Estrellita and Juan Jos{\'e} Presa} } @article {50695, title = {A new genus of African Acrometopini (Tettigoniidae: Phaneropterinae) based on morphology, chromosomes, acoustics, distribution, and molecular data, and the description of a new species}, journal = {Zoological Journal of the Linnean Society}, volume = {158}, year = {2010}, month = {Jan-01-2010}, pages = {66 - 82}, abstract = {

A new genus, Altihoratosphaga, is erected for species formerly assigned to Horatosphaga Schaum, 1853, and a new species is described. Four species are included in Altihoratosphaga: Altihoratosphaga nomima (Karsch, 1896), Altihoratosphaga montivaga (Sj\östedt, 1909), Altihoratosphaga nou (Hemp, 2007) and Altihoratosphaga hanangensis sp. nov. All four species are restricted to Tanzanian localities, and, except for A. nomima, for which no ecological data are available, are confined to montane forest habitats. Data on ecology, acoustics, chromosomes, and molecular relationships are provided, as well as a key to Altihoratosphaga species. The present-day distribution of Altihoratosphaga species suggests former migration events at times when wetter and colder climatic fluctuations favoured connections between montane forest communities, which today are isolated, enabling flightless taxa such as Altihoratosphaga and Monticolaria to spread.

}, keywords = {Altihoratosphaga, bush crickets, Horatosphaga, montane forest, speciation, Tanzania}, issn = {00244082}, doi = {10.1111/zoj.2010.158.issue-110.1111/j.1096-3642.2009.00542.x}, url = {http://blackwell-synergy.com/doi/abs/10.1111/zoj.2010.158.issue-1https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2009.00542.x}, author = {Claudia Hemp and Kjetil Lysne Voje and Klaus-Gerhard Heller and Warcha{\l}owska-{\'S}liwa, El{\.z}bieta and Hemp, Andreas} } @article {50518, title = {Sounds, Behaviour, and Auditory Receptors of the Armoured Ground Cricket, Acanthoplus longipes}, journal = {Journal of Insect Science}, volume = {10}, year = {2010}, month = {Jan-06-2010}, pages = {1 - 15}, abstract = {

The auditory sensory system of the taxon Hetrodinae has not been studied previously. Males of the African armoured ground cricket, Acanthoplus longipes (Orthoptera: Tettigoniidae: Hetrodinae) produce a calling song that lasts for minutes and consists of verses with two pulses. About three impulses are in the first pulse and about five impulses are in the second pulse. In contrast, the disturbance stridulation consists of verses with about 14 impulses that are not separated in pulses. Furthermore, the inter-impulse intervals of both types of sounds are different, whereas verses have similar durations. This indicates that the neuronal networks for sound generation are not identical. The frequency spectrum peaks at about 15 kHz in both types of sounds, whereas the hearing threshold has the greatest sensitivity between 4 and 10 kHz. The auditory afferents project into the prothoracic ganglion. The foreleg contains about 27 sensory neurons in the crista acustica; the midleg has 18 sensory neurons, and the hindleg has 14. The auditory system is similar to those of other Tettigoniidae.

}, keywords = {calling song, courtship behaviour, disturbance sound, hearing system, scolopidial organ, sensory physiology}, issn = {1536-2442}, doi = {10.1673/031.010.5901}, url = {https://academic.oup.com/jinsectscience/article-lookup/doi/10.1673/031.010.5901https://academic.oup.com/jinsectscience/article/843007/Sounds-behaviour-and-auditory-receptors-of-the}, author = {Kowalski, Kerstin and Lakes-Harlan, Reinhard} } @article {48152, title = {An Aerial-Hawking Bat Uses Stealth Echolocation to Counter Moth Hearing}, journal = {Current Biology}, volume = {20}, year = {2010}, month = {Jan-09-2010}, pages = {1568 - 1572}, abstract = {

Ears evolved in many nocturnal insects, including some moths, to detect bat echolocation calls and evade capture [1, 2]. Although there is evidence that some bats emit echolocation calls that are inconspicuous to eared moths, it is difficult to determine whether this was an adaptation to moth hearing or originally evolved for a different purpose [2, 3]. Aerial-hawking bats generally emit high-amplitude echolocation calls to maximize detection range [4, 5]. Here we present the first example of an echolocation counterstrategy to overcome prey hearing at the cost of reduced detection distance. We combined comparative bat flight-path tracking and moth neurophysiology with fecal DNA analysis to show that the barbastelle, Barbastella barbastellus, emits calls that are 10 to 100 times lower in amplitude than those of other aerial-hawking bats, remains undetected by moths until close, and captures mainly eared moths. Model calculations demonstrate that only bats emitting such low-amplitude calls hear moth echoes before their calls are conspicuous to moths. This stealth echolocation allows the barbastelle to exploit food resources that are difficult to catch for other aerial-hawking bats emitting calls of greater amplitude.

}, issn = {09609822}, doi = {10.1016/j.cub.2010.07.046}, url = {http://linkinghub.elsevier.com/retrieve/pii/S0960982210009917}, author = {Goerlitz, Holger R. and ter Hofstede, Hannah M. and Zeale, Matt R.K. and Jones, Gareth} } @article {47912, title = {Female Field Crickets Incur Increased Parasitism Risk When Near Preferred Song}, journal = {PLoS ONE}, volume = {5}, year = {2010}, month = {Sep-03-2010}, pages = {e9592}, abstract = {

Female animals often prefer males with conspicuous traits because these males provide direct or indirect benefits. Conspicuous male traits, however, can attract predators. This not only increases the risk of predation for conspicuous males but also for the females that prefer them. In the variable field cricket, Gryllus lineaticeps, males that produce preferred song types provide females with greater material benefits, but they are also more likely to attract lethal parasitoid flies. First, we conducted a field experiment that tested the hypothesis that females have a greater risk of fly parasitism when in association with preferred high chirp rate males. Females were nearly twice as likely to be parasitized when caged with high chirp rate song than when caged with low chirp rate song. Females may thus be forced to trade off the quality of the benefits they receive from mating with preferred males and the risk of being killed by a predator when near these males. Second, we assessed female parasitism rates in a natural population. Up to 6\% of the females were parasitized in field samples. Because the females we collected could have become parasitized had they not been collected, this provides a minimum estimate of the female parasitism rate in the field. In a laboratory study, we found no difference in the proportion of time parasitized and unparasitized females spent hiding under shelters; thus, differences in activity patterns do not appear to have biased our estimate of female parasitism rates. Overall, our results suggest that female association costs have the potential to shape the evolution of female mating preferences.

}, doi = {10.1371/journal.pone.000959210.1371/journal.pone.0009592.g00110.1371/journal.pone.0009592.g002}, url = {http://dx.plos.org/10.1371/journal.pone.0009592}, author = {Martin, Cassandra M. and William E. Wagner} } @article {47809, title = {Long-distance signals influence assessment of close range mating displays in the field cricket, Gryllus integer}, journal = {Biological Journal of the Linnean Society}, volume = {100}, year = {2010}, month = {Jan-08-2010}, pages = {856 - 865}, abstract = {

Male sexual displays often include components detected across long distances, and those perceived only at close range. Understanding what information females gain from each component of a complex display and how they use these signals to make decisions are questions of major interest in sexual selection research. We evaluated content-based hypotheses (\‘redundant signals\’ and \‘multiple messages\’) for the courtship displays of field crickets (Gryllus integer) by measuring female responses to males\’ long-distance calling song (calls) and close-range chemical cues. Females\’ responses to a male\’s calls and chemical cues were uncorrelated, supporting the \‘multiple messages\’ hypothesis. We also tested the \‘inter-signal interaction\’ hypothesis by investigating how long-distance calls influence evaluation of close-range courtship. The relationship between long- and close-range signals was complex and conditional: females accepted close-range courtship more quickly after exposure to attractive calling song than they did after exposure to either unattractive calling song or silence, and unattractive calls were no more or less effective than silence. This inter-signal interaction could affect our understanding of mate choice in species with multiple mating signals because it implies that females may save time and energy by not assessing the close-range signals of attractive long-distance signalers.

}, keywords = {acoustic signal, chemical cues, courtship, mate choice, multimodal signals, multiple cues, multiple messages, redundant signals}, doi = {10.1111/bij.2010.100.issue-410.1111/j.1095-8312.2010.01472.x}, url = {http://blackwell-synergy.com/doi/abs/10.1111/bij.2010.100.issue-4https://academic.oup.com/biolinnean/article-lookup/doi/10.1111/j.1095-8312.2010.01472.xhttps://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111\%2Fj.1095-8312.2010.01472.x}, author = {Anne S. Leonard and Ann V. Hedrick} } @article {47343, title = {A new genus and species of African Phaneropterinae (Orthoptera: Tettigoniidae), with data on its ecology, bioacoustics and chromosomes}, journal = {Organisms Diversity \& Evolution}, volume = {10}, year = {2010}, month = {Jan-07-2010}, pages = {215 - 226}, abstract = {

A new genus is proposed for a new East African Phaneropterinae species, Lunidia viridis, occurring on Mt. Kilimanjaro, Tanzania. Based on 33 records, notes on distribution and habitat are given, as well as acoustical data provided. Climate and vegetation parameters obtained along several transects on Mt. Kilimanjaro were evaluated describing the ecological niche of the new species. This interdisciplinary approach allows not only a profound characterisation of the ecological demands of the new genus but also predictions of the potential distribution area, which is tested for the first time for an African bush cricket species. Lunidia viridis n. gen. n. sp. occurs within humid and perhumid forests and Chagga home gardens, avoiding subhumid conditions on the mountain. It is found from 1,330 m upwards on the southern slopes, whereas the same ecological conditions are expressed from 1,930 m upwards on the drier northern slopes. Lunidia viridis has an unusually complex and variable song, which is described from field and laboratory recordings. The FISH technique for characterizing chromosomes is applied for the first time for an African species; L. viridis exhibits a karyotype typical for most Tettigoniidae.

}, keywords = {East Africa, Eastern Arc, ecological niche, Mount Kilimanjaro, new species}, issn = {1439-6092}, doi = {10.1007/s13127-010-0013-3}, url = {http://link.springer.com/10.1007/s13127-010-0013-3}, author = {Claudia Hemp and Klaus-Gerhard Heller and Warcha{\l}owska-{\'S}liwa, El{\.z}bieta and Hemp, Andreas} } @article {47339, title = {The Phlesirtes complex (Orthoptera, Tettigoniidae, Conocephalinae, Conocephalini) reviewed: integrating morphological, molecular, chromosomal and bioacoustic data}, journal = {Systematic Entomology}, volume = {35}, year = {2010}, month = {Jan-07-2010}, pages = {554 - 580}, abstract = {

The tettigoniid genus Phlesirtes Bolivar and its allies are reviewed. Morphological, ecological and molecular data prompt the erection of the new genus Chortoscirtesgen.n. with type species Xiphidion meruense Sj\östedt. The genera Phlesirtes, Chortoscirtes, Karniella and Naskreckiella are characterized by morphological characters supported by molecular, acoustic, ecological and chromosomal data. Four species, Chortoscirtes pseudomeruensissp.n., C. masaicussp.n., C. puguensissp.n. and C. serengetisp.n., are described from localities in northern and coastal Tanzania and one Karniella, K. crassicercasp.n., is described from Uganda. The following comb n. are proposed: Phlesirtes kibonotensis (Sj\östedt) and Phlesirtes kilimandjaricus (Sj\östedt). Subtribal status is proposed for the four investigated African genera. A key to the Chortoscirtes species is provided.

}, doi = {10.1111/j.1365-3113.2009.00512.x}, url = {http://doi.wiley.com/10.1111/j.1365-3113.2009.00512.xhttps://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111\%2Fj.1365-3113.2009.00512.x}, author = {Claudia Hemp and Klaus-Gerhard Heller and KEHL, SIEGFRIED and Warcha{\l}owska-{\'S}liwa, El{\.z}bieta and Johann Wolfgang W{\"a}gele and Hemp, Andreas} } @article {47336, title = {A new genus of African Karniellina (Orthoptera, Tettigoniidae, Conocephalinae, Conocephalini): integrating morphological, molecular and bioacoustical data}, journal = {Systematic Entomology}, volume = {35}, year = {2010}, month = {Jan-07-2010}, pages = {581 - 595}, abstract = {

Melanoscirtes gen.n. is established within Karniellina. The members of this subtribe are small conocephaline bush crickets, confined to Africa. Melanoscirtes is erected on Phlesirtes kibonotensis, a species restricted to forest clearings and forest edge in the submontane and montane zones of Mt. Kilimanjaro. A subspecies, M. kibonotensis uguenoensis, is described from the North Pare mountains, a mountain range of the Eastern Arc adjacent to Mt. Kilimanjaro. Further species of Melanoscirtes occur on other mountain ranges of the northern branch of the Eastern Arc mountains of northern Tanzania and southern Kenya. The South Pare mountains harbour M. shengenae; the West Usambaras, M. usambarensis, and the Taita Hills, M. taitensis. All species and subspecies of Melanoscirtes exhibit a similar morphology and occupy analogous habitats on the respective mountains. The song patterns for all species found within this genus are very similar, and this, together with evidence from molecular data, suggests that allopatric speciation is the reason for the biogeographic pattern found in this genus. A key for the subspecies and species of Melanoscirtes is provided.

}, doi = {10.1111/j.1365-3113.2010.00528.x}, url = {http://doi.wiley.com/10.1111/j.1365-3113.2010.00528.xhttps://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111\%2Fj.1365-3113.2010.00528.x}, author = {Claudia Hemp and KEHL, SIEGFRIED and Klaus-Gerhard Heller and Johann Wolfgang W{\"a}gele and Hemp, Andreas} } @article {47332, title = {Clinal variation explains taxonomic discrepancy in the calling songs of shield-back katydids (Orthoptera: Tettigoniidae: Tettigoniinae: Aglaothorax)}, journal = {Biological Journal of the Linnean Society}, volume = {101}, year = {2010}, month = {Jan-12-2010}, pages = {910 - 921}, abstract = {

Understanding the relationship between mating trait evolution and speciation requires data from a variety of taxa. I analysed the calling songs of the shield-back katydid genus Aglaothorax, which represents a little-known lineage of acoustic insects. Field-collected males of all described species and most subspecies were recorded under controlled laboratory conditions. Discriminant analysis was 90.5\% successful in separating song types, but the song types thus delineated did not correspond to currently recognized taxa as defined by morphology. The discrepancy is caused by two species, Aglaothorax morsei and Aglaothorax longipennis, the songs of which vary in a cline across the Transverse Ranges and the Los Angeles Basin of southern California. From west to east, pulse rate and duty cycle decrease and interpulse interval increases. Selection for species recognition at a contact zone, sexual selection and interactions between signals and the environment are considered as causes of the cline.

}, keywords = {bioacoustics, California, cline, discriminant analysis, speciation, transverse ranges}, doi = {10.1111/bij.2010.101.issue-410.1111/j.1095-8312.2010.01532.x}, url = {http://doi.wiley.com/10.1111/bij.2010.101.issue-4https://academic.oup.com/biolinnean/article-lookup/doi/10.1111/j.1095-8312.2010.01532.xhttps://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111\%2Fj.1095-8312.2010.01532.x}, author = {Jeffrey A. Cole} } @article {16624, title = {New World Thermometer Crickets: The Oecanthus rileyi Species Group and a New Species from North America}, journal = {Journal of Orthoptera Research}, volume = {19}, year = {2010}, month = {Jan-12-2010}, pages = {371 - 376}, issn = {1082-6467}, doi = {10.1665/034.019.022710.1665/034.019.0227.s1}, url = {http://www.bioone.org/doi/abs/10.1665/034.019.0227}, author = {Thomas J. Walker and Collins, Nancy} }