A multi-taxon analysis of European Red Lists reveals major threats to biodiversity.

Biodiversity loss is a major global challenge and minimizing extinction rates is the goal of several multilateral environmental agreements. Policy decisions require comprehensive, spatially explicit information on species' distributions and threats. We present an analysis of the conservation status of 14,669 European terrestrial, freshwater and marine species (ca.

A review of (Orthoptera, Tettigoniidae) from Crete, Gavdos, Gavdopoula, and Andikithira.

Being nocturnal, hiding in prickly bushes and shrubs during the day, species in Crete and its neighbouring islands are easily overlooked, and until now our knowledge about their distribution was based on some thirty sightings across 11 species. In this paper results are presented of a study of specimens collected between 1987 and 2020 by hand-catches and pitfall and fermenting traps on the Greek islands of Crete, Gavdos, Gavdopoula, and Andikithira. Diagnostic features of all known species are presented and illustrated with stacked images.

Geographic differentiation in male calling song of (Orthoptera, Tettigoniidae, Phaneropterinae).

We studied the songs and morphology of the stridulatory file of across its complete geographic range, in order to test our hypothesis that the male calling song of the species shows strong differentiation between the northern (Pannonian) and southern (Balkan) parts of its distribution range, reflecting its disjunct distribution. Our analyses confirm this hypothesis, separating analyzed specimens of into two main groups - one present in the central part of the Balkan Peninsula (representing ), with the second group occurring in the Pannonian Basin, Dinarides, Slovenia and NE Italy. The most reliable difference between the groups is the duration of the main syllable, the number of stridulatory teeth and number of pulses in the main syllable, where all values are higher in specimens from the Balkan Peninsula.

Review of song patterns and sound production in armoured ground crickets (Orthoptera: Tettigoniidae: Hetrodini) with karyological data and taxonomic notes.

In the mate finding system of bush-crickets, acoustical signals play a central role. Here we review and describe the bioacoustics of Hetrodini, a morphologically uniform group of Tettigonioidea with a distribution centered in Africa. The male calling songs are produced by tegmino-tegminal stridulation.

On some Moroccan Pamphagidae, with the description of a new species of Euryparyphes (Orthoptera: Caelifera).

An update to the distribution records of the Moroccan Pamphagidae is presented. One new species to science, Euryparyphes minor sp. n.

A taxonomic outline of the complex (Orthoptera) using the geometric morphometric approach.

The genus contains 145 species, widely distributed in the Palaearctic, among which the group has the greatest diversity in the Balkans. Despite several revisions of the genus, the systematics of the species group, and in particular, of the taxa associated with the species , is still unsolved. Due to morphological similarity, with its subspecies, and form the complex.

Songs in the genus Uromenus (Orthoptera: Tettigoniidae: Ephippigerini): A review with new information about some species.

With nearly 60 described forms Uromenus is the most species-rich genus of the tribe Ephippigerini, a west Palearctic group of flightless bush-crickets (katydids). As it is typical for bush-crickets, Uromenus males produce species-specific calling songs to attract females prepared to mate. These insects are relatively large and their songs have always components audible to humans.

Bioacoustics of poorly known Poecilimon taxa (Insecta: Orthoptera: Tettigoniidae) with redescriptions of P. pechevi and P. stschelkanovzevi.

The genus Poecilimon has been object of several studies dealing with its systematics, sound communication and evolution. Yet, published data contradict in the classification, while many taxa are still insufficiently known. In the present study we supplement the knowledge of 13 poorly known species and one additional subspecies with data on their sound communication and/or morphology.

Ceraeocercus Uvarov, a genus recorded in China for the first time (Orthoptera, Tettigoniidae; Tettigoniinae; Drymadusini).

Ceraeocercus Uvarov, 1910 of Tettigoniinae; Drymadusini is receded in China for the first time. Ceraeocercus fuscipennis fuscipennis Uvarov, 1910 is documented. Morphology and male calling songs are described and illustrations are provided.

Comparative analysis of C-heterochromatin, ribosomal and telomeric DNA markers in chromosomes of Pamphagidae grasshoppers from Morocco.

The karyotypes and the localization of C-bands, clusters of ribosomal DNA and telomeric repeats of 10 species of the family Pamphagidae from Morocco are described for the first time. The species studied belong to the subfamilies and . All species have karyotypes consisting of 19 and 20 acrocentric chromosomes and X0/XX sex chromosome system in males and females, respectively (2n♂=19, NF=19; 2n♀=20, NF=20).

The first record of genus Gryllomorpha Fieber in Romania (Orthoptera: Gryllidae: Gryllomorphinae).

Although the fauna of Dobrogea (south-eastern Romania and north-eastern Bulgaria) is relatively well studied, the discovery of a crevice cricket was quite unexpected. Described from Ukraine and known to occur in Bulgaria, Greece, Turkey, Kazakhstan and possibly Uzbekistan, Gryllomorpha miramae is now recorded for the first time in Romania.

New insights into the karyotype evolution of the genus (Orthoptera, Tettigoniinae, Gampsocleidini).

Five species belonging to the genus Fieber, 1852 were analyzed using fluorescence hybridization (FISH) with 18S rDNA and telomeric probes, as well as C-banding, DAPI/CMA staining and silver impregnation. The studied species showed two distinct karyotypes, with 2n = 31 (male) and 2n = 23 (male) chromosomes. The drastic reduction in chromosome number observed in the latter case suggests multiple translocations and fusions as the main responsible that occurred during chromosome evolution.

Review of Poecilimon species with inflated pronotum: description of four new taxa within an acoustically diverse group.

Poecilimon Fischer (Orthoptera, Tettigoniidae) consists of about 130 species and a functional taxonomy of the genus requires arranging species into phylogenetic groups. However, this is a task that requires detailed empirical testing. This paper documents data on Poecilimon species with an inflated pronotum.

Comparative analysis of chromosomes in the Palaearctic bush-crickets of tribe Pholidopterini (Orthoptera, Tettigoniinae).

The present study focused on the evolution of the karyotype in four genera of the tribe Pholidopterini: Mařan, 1953, Mařan, 1953, Wesmaël, 1838, Mařan, 1953. Chromosomes were analyzed using fluorescence hybridization (FISH) with 18S rDNA and (TTAGG) telomeric probes, and classical techniques, such as C-banding, silver impregnation and fluorochrome DAPI/CMA staining. Most species retained the ancestral diploid chromosome number 2n = 31 (male) or 32 (female), while some of the taxa, especially a group of species within genus , evolved a reduced chromosome number 2n = 29.

Corrigenda: Iorgu IȘ, Iorgu EI, Puskás G, Ivković S, Borisov S, Gavril VD, Chobanov DP (2016) Geographic distribution of (Insecta, Orthoptera, Gryllotalpidae) in South-eastern Europe, with first records for Romania, Hungary and Serbia. ZooKeys 605: 73-82, doi: 10.3897/zookeys.605.8804.

[This corrects the article DOI: 10.3897/zookeys.605.

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.

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.

An annotated checklist and key to the Bulgarian cockroaches (Dictyoptera: Blattodea).

An annotated checklist of the Bulgarian species of cockroaches is prepared based on a full published scientific record and own unpublished data. According to the current state of knowledge the Bulgarian cockroach fauna includes 17 species and subspecies. One synonymization is established-Phyllodromica marginata erythronota Br.

Geographic distribution of Gryllotalpa stepposa in south-eastern Europe, with first records for Romania, Hungary and Serbia (Insecta, Orthoptera, Gryllotalpidae).

Described from the steppe zones north of the Black Sea, Caucasus, and central Asia, Gryllotalpa stepposa Zhantiev was recently recorded from a few localities in Greece, R. Macedonia, and Bulgaria. In May 2015, several specimens were collected from Ivrinezu Mare in Romania, which suggested a continuous distribution area of the species, stretching from the central Balkans to central Asia.

Contribution to the taxonomy of Poecilimon bosphoricus species group (Orthoptera: Phaneropteridae): two new species from its core range.

The Poecilimon bosphoricus species group, representing the most diverse lineage of the bushcricket genus Poecilimon, has been studied in the Basin of Marmara Sea. Two new species, P. warchalowskae sp.

Review of Psorodonotus Specularis Group (Orthoptera, Tettigoniidae, Tettigoniinae): two new species from North-east Anatolia.

The Anatolio-Caucasio-Balkan genus Psorodonotus (Orthoptera, Tettigoniidae) presently includes 13 species belonging to three species groups. In the present study we review the Specularis group and describe two new species-P. rize Kaya & Ciplak sp.

A comparative study of genome organization and inferences for the systematics of two large bushcricket genera of the tribe Barbitistini (Orthoptera: Tettigoniidae: Phaneropterinae).

Background: Poecilimon and Isophya are the largest genera of the tribe Barbitistini and among the most systematically complicated and evolutionarily intriguing groups of Palearctic tettigoniids. We examined the genomic organization of 79 taxa with a stable chromosome number using classical (C-banding, silver and fluorochrome staining) and molecular (fluorescence in situ hybridization with 18S rDNA and (TTAGG)n telomeric probes) cytogenetic techniques. These tools were employed to establish genetic organization and differences or similarities between genera or species within the same genus and determine if cytogenetic markers can be used for identifying some taxonomic groups of species.

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.

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.

Re-visiting phylogenetic and taxonomic relationships in the genus Saga (Insecta: Orthoptera).

Twelve of the 13 bushcricket species of the Saga genus are bisexuals and diploids, except the parthenogenetic and tetraploid bush cricket, Saga pedo. Despite a continuous research effort stretching through the 1900s, the taxonomic relationships of the Saga species are still disputed. In this study, our primary aim was to reveal natural relationships of the European Saga species and three of their Asian relatives, with special attention to the problematic taxonomy of two subspecies: S.

Taxonomy of the genus Isophya (Orthoptera, Phaneropteridae, Barbitistinae): comparison of karyological and morphological data.

The genus Isophya represents one of the largest orthopteran genera with about 45 species occurring in Europe. All over its range the genus includes groups of sibling species, the recognition of which is hampered by their morphological similarity. In part, some species were grouped according to their morphology: the Isophya straubei-group, the I.