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Ionuţ Ştefan Iorgu and Elena Iulia Iorgu

Abstract

Isophya pienensis Mařan, 1952 is a mesophytic bush-cricket occurring in Romania, western Ukraine, southeastern Poland, Slovakia, northeastern Hungary and a few isolated localities in the Czech Republic and Austria (Chobanov et al., 2016). Species distribution in the Romanian Eastern Carpathians and Apuseni Mountains is reviewed, based on literature and personal data.

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Ionuţ Ştefan Iorgu and Elena Iulia Iorgu

Abstract

Although occupying a vast area, the distribution range of Saga pedo is f ragmented and populations are small, severely threatened by habitat destruction and pollution. In Romania, the species is known to occur in xeric and semi–xeric meadows from Dobrogea, Eastern Moldavia, Transylvania and Banat. During a short trip in late June 2014, we found three nymphs of Saga pedo at Berca Mud Volcanoes, the first record of the species in the historical region of Muntenia (Southern Romania).

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Elena Iulia Iorgu and Ana Maria Krapal

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Ionuţ Ştefan Iorgu and Elena Iulia Iorgu

Abstract

The bush-cricket Isophya zubowskii Bey-Bienko, 1954 was surveyed in the period 2002- 2012 in 11 locations from Romania. The calling song, described hereby for the first time, consists of a long series of syllables, each formed by 85-118 impulses and lasting for 236-319 ms in the populations near Iaşi, while the individuals from three other populations in Southern Romania produce shorter syllables, consisting of 74-105 impulses and, lasting for 182-251 ms. Sound frequency ranges in the interval 10-40 kHz, with highest peak at about 18-26 kHz. Based on the description of its calling song, we conclude that Isophya zubowskii belongs to the Isophya kraussii species group.

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Ionuţ Ştefan Iorgu, Alexandru Ioan Tatu and Elena Iulia Iorgu

Abstract

During the period 2008-2012, the bush-cricket Isophya harzi Kis, 1960 has been the subject of several collecting trips in Cozia Mountains, where it was believed to be endemic, in order to study its acoustic behaviour. However, on a recent trip to Piatra Craiului Mountains, to study its Orthoptera fauna, I. harzi was surprisingly found in clearings and mountain steppe slopes covered with tall subalpine vegetation from Northern and Western areas. Bioacoustic analysis and some ecological notes are presented in the paper.

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Ionuţ Ştefan Iorgu, Elena Iulia Iorgu and Nadejda Stahi

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).

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Anton Krištín, Benjamín Jarčuška, Peter Kaňuch, Elena Iulia Iorgu and Ionuţ Ştefan Iorgu

Abstract

The Carpathian Mountains, particularly the Eastern Carpathians, represent an area with a high diversity and endemism in grasshoppers and bush-crickets. The well-preserved mountain grassland habitats are populated by diverse orthopteran assemblages. During the second half of July 2013, we visited 24 sites in Romanian Carpathians within altitudes ranging from 237 to 1700 m a.s.l. and found 71 Orthoptera species (36 Ensifera and 35 Caelifera). These represent 37.3% of the 190 species known to occur in Romania. Nine Carpathian endemics (Isophya stysi, Pholidoptera frivaldskyi, Pholidoptera transsylvanica, Miramella ebneri, Pseudopodisma transilvanica, Isophya harzi, Isophya nagyi, Isophya sicula, Zubovskya banatica), of which the last four are endemic to Romania and Eastern Carpathians, were recorded. Four environmental characteristics, i.e. habitat type, altitude, mean temperature and precipitation on sampled sites, are used to examine the structure of orthopteran assemblages by using DCA. Also, more detailed information on the occurrence of rare and endemic species is given.

Open access

Ana Maria Krapal, Oana Paula Popa, Alexandra Levarda, Elena Iulia Iorgu, Luis Ovidiu Popa, Marieta Costache and Fabio Crocetta

Abstract

The use of DNA barcoding in alien invasions has recently proved to be a powerful tool in delineating dispersal pathways and clarifying doubtful identifications. Morphological similarities between Anadara kagoshimensis (Tokunaga, 1906) and Anadara inaequivalvis (Bruguière, 1789) require the use of genetic markers in identifying the ark shell species that has recently invaded the Black Sea. The high genetic similarity (99.8-100%) hereby found between COI sequences obtained from the Black Sea samples and Japanese A. kagoshimensis confirms at a molecular level that the ark clam species invading the Romanian Black Sea belong to this taxon.