@article {57941, title = {Review of the Balkan Isophya (Orthoptera: Phaneropteridae) with particular emphasis on the Isophya modesta group and remarks on the systematics of the genus based on morphological and acoustic data}, year = {2013}, abstract = {

A critical review of the taxonomy and systematics of the genus Isophya from the Balkan Peninsula, together with a revision of the I. modesta group, including its representatives outside the Balkans, has been made using morphological, bioacoustic and karyological data. As a result, the following taxonomic considerations have been proposed: (1) the status of two taxa has been reconsidered: Isophya rhodopensis leonorae Kaltenbach, stat.n., I. rhodopensis petkovi Peshev, stat.n.; (2) five synonymies have been established: I. hospodar (Saussure) = I. hospodar medimontana Nedelkov, syn.n.; I. plevnensis Peshev, sensu novo = I. pravdini pravdini Peshev, syn.n.; I. rhodopensis leonorae Kaltenbach = I. kisi Peshev, syn.n.; I. obtusa = I. pravdini bazyluki Peshev, syn.n.; I. modesta Frivaldszky = I. modesta intermedia Kis syn.n. The descriptions of the taxa under consideration are supplemented with unpublished morphological and/or bioacoustic data. An updated list of the taxa occurring on the Balkans includes 24 taxa (21 species, including the doubtful data on I. camptoxypha). A dichotomic and tabulated key for recognition and maps of distribution of the established taxa are presented.

}, keywords = {Anatolia, Barbitistini, Bush-crickets, distribution, evolution, grouping, keys, Southeastern Europe}, doi = {10.11646/zootaxa.3658.110.11646/zootaxa.3658.1.1}, url = {http://biotaxa.org/Zootaxa/issue/view/zootaxa.3658.1}, author = {Dragan Petrov Chobanov and Grzywacz, Beata and Ionut Stefan Iorgu and Battal Ciplak and ILIEVA, MAYA B. and Warcha{\l}owska-{\'S}liwa, El{\.z}bieta} } @article {57936, title = {Acoustic analysis reveals a new cryptic bush{\textendash}cricket in the Carpathian Mountains (Orthoptera, Phaneropteridae)}, year = {2012}, abstract = {

A new morphologically cryptic species of phaneropterid bush\–cricket from the genus Isophya is described from the Eastern Carpathian Mountains: Isophya dochia sp. n. Sound analysis and morphological details are discussed in the paper, comparing the new species with several Isophya species having similar morphol- ogy and acoustic behavior.

}, doi = {10.3897/zookeys.254.3892}, url = {http://zookeys.pensoft.net/articles.php?id=3512}, author = {Ionut Stefan Iorgu} } @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 {52835, title = {High-speed duetting {\textendash} latency times of the female acoustic response within the bush-cricket genera Leptophyes and Andreiniimon (Orthoptera, Phaneropteridae)}, journal = {ZooKeys}, volume = {750}, year = {2018}, month = {Apr-04-2019}, pages = {45 - 58}, abstract = {

To find a mate, male and female bush-crickets of the family Phaneropteridae typically engage in duets. The male sings and the female responds. For mutual recognition, the amplitude pattern of the male song and the species-specific timing of the female response have been shown to be very important. In the seven studied species, belonging to the genera Leptophyes and Andreiniimon, these duets are extremely fast and nearly completely in the ultrasonic range. The females produce very short sounds by fast closing movements of the tegmina. They respond with species-specific delays of 20 to 150 ms after the beginning of the male song. The different latency times are probably not important for species recognition, since in sympatric species they are quite similar.

}, keywords = {duet, female acoustic signals, katydid, Phaneropterinae, stridulatory movement}, issn = {1313-2989}, doi = {10.3897/zookeys.750.23874}, url = {https://zookeys.pensoft.net/articles.php?id=23874}, author = {Klaus-Gerhard Heller and Olga S. Korsunovskaya and Massa, Bruno and Ionut Stefan Iorgu} } @article {50908, title = {Subspecies-specific song preferences and diverged heterospecific discrimination in females of the bush-cricket Isophya kraussii (Orthoptera: Phaneropterinae)}, journal = {Biological Journal of the Linnean Society}, year = {2017}, month = {Sep-09-2017}, abstract = {

Divergence of the acoustic signals used in mate calling may be an important driver of speciation. Male song may vary accordingly to, in mismatch with or independently of female preferences. Therefore, to estimate the importance of male signal variation between subspecies, female preferences against subspecies-specific signal variants must be tested. We examined the female response probability in the two subspecies of the bush-cricket Isophya kraussii for consubspecific and heterosubspecific male signals, and also for the song of a closely related species (I. camptoxypha), which is sympatric with one, but allopatric to the other subspecies. Performing no-choice playback experiments, we found that females of both subspecies responded to the male song of their own subspecies with significantly higher probability than to heterosubspecific and heterospecific songs. Response specificity for consubspecific vs. heterosubspecific signals was not significantly asymmetric comparing the two subspecies. A significant difference was found, however, in the discrimination of heterospecific calls: females showed stronger discrimination against the song of I. camptoxypha in the subspecies sympatric with that species. Our results are best explained by a tightly covarying, stepwise coevolution of male signals and female preferences.

}, keywords = {acoustic communication, mate recognition, signal evolution, speciation}, issn = {0024-4066}, doi = {10.1093/biolinnean/blx094}, url = {http://academic.oup.com/biolinnean/article/doi/10.1093/biolinnean/blx094/4110201/Subspeciesspecific-song-preferences-and-diverged}, author = {Kirill M{\'a}rk Orci and Ionut Stefan Iorgu} } @article {47913, title = {A new, morphologically cryptic bush-cricket discovered on the basis of its song in the Carpathian Mountains (Insecta, Orthoptera, Tettigoniidae)}, journal = {ZooKeys}, volume = {680}, year = {2017}, month = {Feb-06-2018}, pages = {57 - 72}, abstract = {

A new, morphologically cryptic species of phaneropterine bush-crickets is described from the grasslands of the Romanian Eastern Carpathians. Despite the morphological and acoustic similarities with the recently described Isophya nagyi Sz\öv\ényi, Pusk\ás \& Orci, I. bucovinensis sp. n. is characterized by a peculiar male calling song, with faster syllable repetition rate (160\–220 syllables per minute, at 22\–27\°C) and less complex syllable structure (composed of only two elements instead of three observable in I. nagyi). The morphological description of the new species is supplemented with an oscillographic and spectrographic analysis of the male calling song and male\–female pair-forming acoustic duet. An acoustic signal-based identification key is provided for all the presently known species of the Isophya camptoxypha species group, including the new species.

}, keywords = {bioacoustics, Carpathians, Isophya, new species, taxonomy}, issn = {1313-2989}, doi = {10.3897/zookeys.680.12835}, url = {https://zookeys.pensoft.net/articles.php?id=12835}, author = {Ionut Stefan Iorgu and Elena Iulia Iorgu and Gergely Sz{\"o}v{\'e}nyi and Kirill M{\'a}rk Orci} } @article {47807, title = {The Orthoptera Fauna (Insecta: Orthoptera) from Paşcani and Surroundings (Romania, Iasi County)}, journal = {Analele Ştiinţifice ale Universităţii {\quotedblbase}Al. I. Cuza{\textquotedblright} Iaşi, s. Biologie animală}, volume = {LIV}, year = {2008}, pages = {73-80}, chapter = {73}, abstract = {Paşcani town is located on the western part of Iaşi County, between the rivers Siret and Moldova, this region being a mosaic of ecosystems: grasslands and lawns, decidous and coniferous forests with glades. During our studies on this area, which begun in 2001, there were identified 60 orthoptera species. Among those, 31 species live in town ecosystems. This high number of species is due to the higher temperatures, with 2-3oC inside the town. The forest Codrii Pascanilor represents the eastern limit for the distribution area of Isophya stysi, so far this species being known from the western and interior parts of the Carpathians Mountains. The species Acheta domestica and Tetrix tuerki are new reportings for Moldova, meanwhile the hybrid Chorthippus albomarginatus {\texttimes} oschei is new for Romanian fauna.}, keywords = {Chorthippus albomarginatus {\texttimes} oschei, fauna, Orthoptera, Paşcani}, author = {Ionut Stefan Iorgu} } @article {47792, title = {Bioacoustic studies on some cricket species (Insecta:Orthoptera: Gryllidae) from Romania}, journal = {Analele Ştiinţifice ale Universităţii {\quotedblbase}Al. I. Cuza{\textquotedblright} Iaşi, s. Biologie animală}, volume = {LIV}, year = {2008}, pages = {57-64}, chapter = {57}, abstract = {

There are 9 cricket species known from Romania belonging to the family Gryllidae. The ordinary stridulation of 7 species of those has been analyzed in this paper. The species belonging to the subfamily Gryllinae: Gryllus campestris, Acheta domestica, Melanogryllus desertus, Modicogryllus frontalis and Modicogryllus truncatus stridulate especially in the afternoon and in the evening, rarely during daytime, meanwhile the species Pteronemobius heydenii from the subfamily Nemobiinae stridulate only during daytime and especially by sunny weather, while the only species belonging to the subfamily Oecanthinae from our country fauna, Oecanthus pellucens, stridulate at night, very rarely during daytime (mostly in autumn). Details of the stridulatory vein and identification criteria for the studied cricket species are presented in this paper; also we have annalysed the spectrograms and the oscillograms for the ordinary stridulation of the 7 species. The species Modicogryllus truncatus, collected at Mărăşeşti, is a new report for Moldavia.

}, keywords = {bioacoustics, crickets, oscillogram, spectrogram}, author = {Ionut Stefan Iorgu and Gheorghe Mustata} } @article {47758, title = {The bush-cricket Isophya kraussii (Orthoptera: Phaneropteridae): bioacoustics, distribution and description of a new subspecies from Romania}, journal = {Zootaxa}, volume = {3640}, year = {2013}, month = {May-04-2014}, pages = {258}, issn = {1175-5326}, doi = {10.11646/zootaxa.3640.210.11646/zootaxa.3640.2.8}, url = {http://biotaxa.org/Zootaxa/issue/view/zootaxa.3640.2}, author = {Ionut Stefan Iorgu and Klaus-Gerhard Heller} } @article {47755, title = {The Orthoptera (Insecta) from Middle and Lower Prut River Basin}, journal = {Travaux du Mus?um National d?Histoire Naturelle ?Grigore Antipa?}, volume = {56}, year = {2013}, month = {Jan-01-2013}, abstract = {

The ecological preferences and bioacoustics of bush-crickets, crickets and grasshoppers species were studied in middle and lower Prut River basin, a research conducted in 55 localities from Romania and 33 localities in the Republic of Moldova. A total number of 91 species of Orthoptera were collected in the study area: 85 species encountered on the western side of Prut River basin (9 Phaneropteridae, 24 Tettigoniidae, 1 Bradyporidae, 5 Gryllidae, 1 Gryllotalpidae, 1 Tridactylidae, 5 Tetrigidae, 39 Acrididae) and 76 species found on the eastern side (7 Phaneropteridae, 19 Tettigoniidae, 1 Bradyporidae, 5 Gryllidae, 1 Gryllotalpidae, 1 Tridactylidae, 3 Tetrigidae, 39 Acrididae). Four species are recorded for the first time in the Orthoptera fauna of the Republic of Moldova: Barbitistes constrictus (Fabricius), Poecilimon fussii Brunner von Wattenwyl, Metrioptera roeselii fedtschenkoi (Saussure) and Pholidoptera frivaldskyi (Herman).

}, keywords = {acoustics, biodiversity, distribution, Orthoptera, Prut}, doi = {10.2478/travmu-2013-0012}, url = {http://www.degruyter.com/view/j/travmu.2013.56.issue-2/travmu-2013-0012/travmu-2013-0012.xmlhttps://www.degruyter.com/view/j/travmu.2013.56.issue-2/travmu-2013-0012/travmu-2013-0012.pdf}, author = {Ionut Stefan Iorgu and Elena Iulia Iorgu and Stahi, Nadejda} } @article {47513, title = {New data on the bush-cricket Montana medvedevi (Orthoptera: Tettigoniidae), critically endangered in Europe (EU 28), and a comparison of its song with all known song patterns within the genus}, journal = {Zootaxa}, volume = {4263}, year = {2017}, pages = {527-542}, chapter = {527}, abstract = {

Montana medvedevi is reported for the first time from Serbia. New information about the distribution, morphology and song of this species is discussed. The song of M. medvedevi is different from that of all other members of the genus, all figured for comparison. Montana is quite diverse regarding the amplitude pattern of the calling song of its members (known in 15 species). Surprisingly, some Montana species seem to have two song patterns, one produced during the day and one at night.

}, keywords = {bioacoustics, distribution, Platycleidini, Serbia}, doi = {10.11646/zootaxa.4263.3.5}, author = {Slobodan Ivkovi{\'c} and Ionut Stefan Iorgu and Laslo Horvat and Dragan Petrov Chobanov and Olga S. Korsunovskaya and Klaus-Gerhard Heller} } @article {16644, title = {Distinctive male{\textendash}female acoustic duetting supports the specific status of Isophya fatrensis , a West-Carpathian endemic bush-cricket (Insecta: Orthoptera: Tettigoniidae: Phaneropterinae)}, journal = {Bioacoustics}, year = {2017}, month = {Nov-01-2018}, pages = {1 - 14}, issn = {0952-4622}, doi = {10.1080/09524622.2016.1272005}, url = {https://www.tandfonline.com/doi/full/10.1080/09524622.2016.1272005}, author = {Ionut Stefan Iorgu and Kri{\v s}t{\'\i}n, Anton and Gergely Sz{\"o}v{\'e}nyi and Ka{\v n}uch, Peter and Jar{\v c}u{\v s}ka, Benjam{\'\i}n and Sahlean, Tiberiu Constantin and Elena Iulia Iorgu and Kirill M{\'a}rk Orci} } @article {16410, title = {The unexpected finding of Parapholidoptera castaneoviridis in south-eastern Romania (Insecta, Orthoptera, Tettigoniidae)}, journal = {ZooKeys}, volume = {643}, year = {2017}, month = {Jun-01-2017}, pages = {87 - 96}, abstract = {

The Balkano-Anatolian genus Parapholidoptera comprises 21 species and the westernmost one, Parapholidoptera castaneoviridis, previously recognized to occur in western Turkey, north-eastern Greece and south-eastern Bulgaria is recorded for the first time from south-eastern Romania, almost 300 km away from the closest known locality. Illustrations and measurements of morphological characters are given and the male calling song from this new, northernmost population is described.

}, keywords = {Balkan Peninsula, bush-cricket, calling song, distribution, relict population}, issn = {1313-2989}, doi = {10.3897/zookeys.643.10645}, url = {http://zookeys.pensoft.net/articles.php?id=10645}, author = {Ionut Stefan Iorgu and Dragan Petrov Chobanov and Elena Iulia Iorgu} }