Grillenstieg 18

Magdeburg, Germany

Grillenstieg 18

Magdeburg, Germany
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Hemp C.,Biodiversity and Climate Research Center | Ingrisch S.,Zoologisches Forschungsmuseum Alexander Koenig | Heller K.-G.,Grillenstieg 18
Zootaxa | Year: 2017

The genus Dendrobia n. gen. is erected to include D. amaniensis n. sp. from the East Usambara Mountains as type species. A second species in this genus, D. octopuncata n. sp., is described from the Udzungwa Mountains of Tanzania. Dendrobia n. gen. is a canopy dweller found only high up on trees in closed submontane and montane forest. The peak frequency of its song is lower than in all other known African Agraeciini, correlating with the large resonant areas in the tegmina. Two new Afroanthracites species, A. ngologolo n. sp. and A. nguru n. sp. are described from the Eastern Arc Mountains in Tanzania. These species are dwellers of understory vegetation in closed forest in the Udzungwa and Nguru Mountains respectively.

Hemp C.,Biodiversity and Climate Research Center | Heller K.-G.,Grillenstieg 18
Zootaxa | Year: 2017

New species of Amytta are described from East Africa. Beside tegminal length, they differ mainly in the structure of the complicated male genitalic organs, notably the last abdominal tergite and cerci. Data on habitat and the acoustics of some species and a key to the species are provided. The songs of all seven Amytta species studied are very similar, consisting of long trills with a syllable repetition rate of about 60 Hz (at 20°C) and a broad frequency peak in the ultrasound at around 40 kHz. The biogeographic pattern and phylogenetic relationships are discussed for the group. © Copyright 2017 Magnolia Press.

Ciplak B.,Akdeniz University | Chobanov D.,Bulgarian Academy of Science | Heller K.-G.,Grillenstieg 18
Zootaxa | Year: 2012

More than 20 species were reported under the circum Black Sea lineage Poecilimon bosphoricus group (Orthoptera, Tet-tigonioidea, Phaneropterinae). The taxonomy of the group has for a long time been controversial; once these species were transferred to Eupoecilimon and many new species have been described since the revision by Ramme (1933) or synonyms have been suggested/re-established. This study aims to test the classification of the group presently based on morphological characters by bioacoustic data. The following results were obtained or conclusions arrived. First, several qualitative morphological characters previously used in descriptions/diagnoses of the species are variable and overlap between species. Those are the elevation and widening of pronotum in metazona, the emargination of caudal margin of pronotal disc and the structure of male subgenital plate at caudal margin. Thus, still the male cercus, especially the orientation of denticles, is the most productive structure may allow more objective delimitation of species. As in qualitative morphology the general morphometry seems uninformative for the taxonomy of the group. Second, male calling song and partly the number of stridulatory pegs are more useful characters both for delimitation of species and describing their relationships. Especially, the pattern of the syllable, the number of impulses per syllable and the duration of early part of syllable in species group allow us a more objective delimitation of the species and definition of relationships. Third, from the distribution and relationships of species, we suggested three radiation centres for the lineage: (1) Northwest Anatolia + Eastern Balkans, (2) Northeast Anatolia + Caucasus and (3) Crimea. Fourth, after evaluating morphological and song phenotypes we considered 21 species in P. bosphoricus group constituting three subgroups: (1) P. sureyanus and P. kocaki (+ P. athos), (2) P. turcicus + P. turciae and (3) P. bidens, P. bischoff i, P. bosphoricus, P. cervus, P. demirsoyi, P. geoktschajcus, P. hei-nrichi, P. istanbul, P. miramae, P. pliginskii, P. proximus, P. roseoviridis sp. n., P. scythicus, P. similis and P. tauricus (+ P. djakonovi). The following nomenclatural actions were made: (1) P. roseoviridis Chobanov & Kaya sp. n. described, (2) P. similis proximus Ünal, 2010 raised to species level as P. proximus stat. n., (3) P. naskrecki Ünal, 2001 syn.n. syn-onymised with P. demirsoyi Sevgili, 2001 (4) P. diversus Ünal, 2010 syn.n. and P. anatolicus Ramme 1933 syn.n. put in synonymy with P. sureyanus Uvarov, 1930, (5) P. oligacanthus Miram, 1938 syn.n. and P. tereckensis Stshelkanovtzev, 1910 stat.rev. resynonymised with P. similis Retowski, 1889, (6) P. beybienkoi Tarbinsky, 1932 syn.n. and P. kusnezovi Miram, 1929 syn.n. synonymised with P. tauricus Retwoski, 1888, and (7) P. boldyrevi Miram, 1938 syn.n. synonymised with P. pliginskii Miram, 1929. © 2012 Magnolia Press.

Grzywacz B.,Polish Academy of Sciences | Chobanov D.P.,Bulgarian Academy of Science | Maryanska-Nadachowska A.,Polish Academy of Sciences | Karamysheva T.V.,RAS Institute of Cytology and Genetics | And 2 more authors.
BMC Evolutionary Biology | Year: 2014

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. Results: Differences between the karyotypes of the studied genera include some general changes in the morphology of the X chromosome in Isophya (in contrast to Poecilimon). The number of major rDNA clusters per haploid genome divided Poecilimon into two main almost equal groups (with either one or two clusters), while two rDNA clusters predominated in Isophya. In both genera, rDNA loci were preferentially located in the paracentromeric region of the autosomes and rarely in the sex chromosomes. Our results demonstrate a coincidence between the location of rDNA loci and active NORs and GC-rich heterochromatin regions. The C/DAPI/CMA3 bands observed in most Poecilimon chromosomes suggest the presence of more families of repetitive DNA sequences as compared to the heterochromatin patterns in Isophya. Conclusions: The results show both differences and similarities in genome organization among species of the same genus and between genera. Previous views on the systematics and phylogenetic grouping of certain lineages are discussed in light of the present cytogenetic results. In some cases, variation of chromosome markers was observed to correspond with variation in other evolutionary traits, which is related to the processes of ongoing speciation and hybridization in zones of secondary contact. It was concluded that the physical mapping of rDNA sequences and heterochromatin may be used as an additional marker for understanding interspecific relationships in these groups and their routes of speciation. © 2014Grzywacz et al.; licensee BioMed Central Ltd.

Heller K.-G.,Grillenstieg 18 | Hemp C.,University of Würzburg | Ingrisch S.,Zoological Research Museum Alexander Koenig | Liu C.,CAS Institute of Zoology
Journal of Orthoptera Research | Year: 2015

Phaneropterinae is the largest subfamily within the bush-crickets/katydids (Tettigonioidea), with about 2451 species, and with a world-wide distribution. Its acoustic communication differs from all other tettigonioid groups in that females primarily and typically respond to the male calling song with their own acoustic reply, a behaviour referred to as duetting. This type of response seems to have been lost only in a few species with wingless females. According to our literature review, information about the song patterns of about 330 species of Phaneropterinae have been published world-wide. Included in this number are ca 170 species of Barbitistini, a flightless West Palearctic tribe, which are treated separately. In the present study we summarize information from the above 330 species. We examine the morphology of stridulatory and hearing organs, and analyze the acoustic signals for frequency, number of syllables and number of interval types. We also have examined if and how responding by sound may have influenced other aspects of the acoustic communication system, especially the structure of the male calling song. Overall, the songs of male Phaneropterinae are similar to those of other tettigonioids. However, some Phaneropterinae species with very long and complex songs are found on all continents, exceeding in these characters nearly all other Ensifera species. These songs contain several different types of syllables and intervals of various duration. Because of this high interspecific variability (reaching from very simple to extremely complex), male phaneropterine songs are by far more variable than those of other tettigonioid families. However, since there are so few data on the behaviour of most Phaneropterinae species, and especially for females, we still are limited in our understanding of the reasons behind the song variability. Sexual selection by females choosing to respond preferentially to certain song types could be an important evolutionary force, but probably only in combination with some unknown ecological and behavioural factors. © 2015, Bio-One. All rights reserved.

Grzywacz B.,Polish Academy of Sciences | Heller K.-G.,Grillenstieg 18 | Lehmann A.W.,Friedensallee 37 | Warchalowska-Sliwa E.,Polish Academy of Sciences | Lehmann G.U.C.,Humboldt University of Berlin
Journal of Zoological Systematics and Evolutionary Research | Year: 2014

We used molecular characters to infer the phylogenetic position of the Western Mediterranean bushcricket genus Odontura and to trace its high karyotype diversity. Analysis of 1391 base pairs of two mitochondrial genes (COI and ND1) and one nuclear sequence (ITS2) was conducted. Phylogenetic topologies were estimated using maximum parsimony, maximum likelihood and likelihood-based Bayesian inference. The genus Odontura is a phylogenetic outlier in respect of all other European Phaneropterinae genera and has been proposed to have originated from a hitherto unknown ancestor. Our results support the monophyly of the genus Odontura and the recognition of two subgenera: Odontura and Odonturella. We found that both Sicilian taxa of the subgenus Odontura have a completely identical morphology and song patterns. Combining these results, we proposed that both should be treated as subspecies: O. (Odontura) stenoxypha stenoxypha and O. (O.) st. arcuata. Bioacoustic data also proved to support independent markers, with song characteristics reflecting the molecular topology. Mapping the karyotypic characters onto the phylogenetic tree allows a reconstruction of the directions and transitional stages of chromosome differentiation. The number of autosomes within the genus Odontura ranges from 26 to 30. In addition to the ancestral X0 sex determination mechanism, neo-XY and neo-X1X2Y sex chromosomes have evolved independently. © 2013 Blackwell Verlag GmbH.

Heller K.-G.,Grillenstieg 18 | Hemp C.,University of Würzburg | Liu C.,CAS Institute of Zoology | Volleth M.,Otto Von Guericke University of Magdeburg
Zootaxa | Year: 2014

During a 14-day excursion in March 1990, 28 species of tettigonioids were found at Irangi (1°54'S, 28°27'E), ca.100 km north west of Bukavu at Lake Kivu (Democratic Republic of the Congo, formerly Zaire), and at other localities near Bu-kavu. One species -Arantia (Arantia) gracilicercata Heller sp. n. - is new to science, another one-Pantecphyllus hel-leri Schmidt et al. 2004-was already described as new in a generic revision. All our specimens of the morphologically quite diverse and sexually dimorphic phaneropterine genus Arantia were studied using molecular methods. We propose a new subgenus Arantia (Euarantia) Heller subgen. n. based on relative tegmen width. Songs and stridulatory organs were studied in 9 species. Two phaneropterines, Horatosphaga leggei and Pardalota asymmetrica, showed remarkable calling songs lasting more than 10 s and produced by quite complicated stridulatory movements. The song of the large phanerop-terine Zeuneria biramosa is noteworthy because of its unusually low carrier frequency of 3.7 kHz. Based on the exami-nation of other specimens and species, some taxonomic changes are proposed (Phaneropteridae Burmeister, 1838 stat. rev.; Afromecopoda monroviana (Karsch, 1886) stat. rev.; Leproscirtus ebneri Karny, 1919, syn. n., Leproscirtus karschi Karny, 1919, syn. n., Leproscirtus granulosus aptera Karny, 1919, syn. n., all synonyms of Leproscirtus granulosus (Karsch, 1886); Lanistoides Sjöstedt, 1913 stat. rev.; Plastocorypha cabrai Griffini, 1909 stat. n.). Copyright © 2014 Magnolia Press.

Ciplak B.,Akdeniz University | Heller K.-G.,Grillenstieg 18 | Willemse F.,Laurastraat 67
Systematic Entomology | Year: 2010

Recently, the systematics and biogeography of the Mediterranean biota have received much attention. This paper deals with Eupholidoptera Mařan, a Mediterranean lineage of Tettigoniidae. The genus is restricted to the northern and eastern basin of the Mediterranean, with a significant number of species found on the Aegean islands. To produce a phylogeny and use it to make assumptions about the historical biogeography of Eupholidoptera, material of 46 species from several collections was studied. A phylogenetic analysis based mainly on morphological characters suggested two lineages in the genus: the E. chabrieri and the E. prasina groups. Based on the consistency between historical geographical events and branching events on the phylogenetic tree, Eupholidoptera is assumed to have evolved from an ancestor present in the Aegeid plate in the Mid-Miocene. The division of the Aegeid plate into Anatolia and Greece in the Tortonian, the reoccurrence of terrestrial corridors between these mainlands in the Messinian, the regression of the Aegean area in the Pliocene and sea level changes in the Pleistocene are assumed to have been the main palaeogeographical events directing speciation in Eupholidoptera. As most of the species are allopatric, vicariance is suggested to be the main pattern. By combining the nature of the characters used in the phylogenetic analysis, the phylogenetic tree produced and the biogeographical assumptions, four tentative conclusions can be made: (i) radiation in the genus is a result of divergence in morphology; (ii) because the main character source is male genitalia, there has possibly been intensive sexual selection, which leads to morphological speciation; (iii) as the difference in temporal parameters of the song is prominent in sympatric/parapatric species pairs only, co-occurrence is suggested to be the main reason driving divergence in the song; (iv) there seems to be a negative correlation between the size of the distribution range and the evolutionary rate in speciation; this may be the reason why the E. prasina group (restricted to a small part of the range of the genus) is more diverse than the E. chabrieri group, which is distributed over the entire range. © 2010 The Authors. Systematic Entomology © 2010 The Royal Entomological Society.

Chobanov D.P.,Bulgarian Academy of Science | Heller K.-G.,Grillenstieg 18
European Journal of Entomology | Year: 2010

The Poecilimon ornatus group has an exclusively European distribution and includes the largest species in the genus. A revision of the taxa belonging to this group in Bulgaria and Macedonia (Central and Eastern Balkan Peninsula) is presented. Nine taxa described from Bulgaria are synonymised with 3 previously known species, as follows: Poecilimon ornatus (= P. mistshenkoi marzani, syn. n., P. mistshenkoi tinkae, syn. n., P. mistshenkoi vlachinensis, syn. n.), P. affinis s. str. (= P. mistshenkoi mistshenkoi, syn. n., P. affinis ruenensis, syn. n., P. affinis rilensis, syn. n., P. affinis medimontanus, syn. n., P. harzi, syn. n.) and P. hoelzeli (= P. kisi, syn. n.). The synonymy of P. poecilus with P. affinis and the subspecific status of P. affinis komareki are confirmed. One species, Poecilimon jablanicensis, sp. n., is described as new to science. A tabulated key, lists and maps of all known localities and oscillograms of the songs of all the species in this group are presented. The phylogenetic relationships and evolutionary trends in the Poecilimon ornatus group are discussed. © 2003 Institute of Entomology.

Warchalowska-Sliwa E.,Polish Academy of Sciences | Grzywacz B.,Polish Academy of Sciences | Maryanska-Nadachowska A.,Polish Academy of Sciences | Karamysheva T.V.,RAS Institute of Cytology and Genetics | And 2 more authors.
European Journal of Entomology | Year: 2013

Chromosomes of six European species (one with two subspecies) of Orthoptera belonging to the tribes Ephippigerini and Bradyporini were analyzed using C-banding, Ag-NOR, DAPI (AT-rich)/CMA3 (GC-rich) staining and fluorescence in situ hybridization (FISH) using the 18S rDNA and (TTAGG)n telomeric probes with the aim to better understand chromosomal organization and evolutionary relationships between genera and subgenera within and across both tribes. The evolution of karyotypes was studied in terms of changes in chromosome number (2n) and morphology (FN, the fundamental number - i.e. the number of chromosome arms including the X chromosome). The ancestral 2n = 31 was reduced to 2n = 29 (FN = 31) and 27 (FN = 31) by one or two Robertsonian fusions in the Ephippigerini. Whereas in the Bradyporini 2n = 27 (FN = 32) as a result of two Robertsonian translocations and a pericentric inversion in the X chromosome. The quantity of heterochromatin in GC-rich regions distinguished the karyotypes of Ephippigerini (only a single CG-rich band on one autosome pair) from those of Bradyporini (CG-rich bands on all chromosomes). FISH using the 18S rDNA probe localized 1-3 rDNA clusters to autosomes and/or to the X chromosome in all species examined. The rDNA loci coincided with active NORs as determined by Ag-NOR staining. A comparison of the location of the single NOR/rDNA in two species of the genus Steropleurus (Ephippigerini) suggests that the reduced chromosome number in S. pseudolus results from a Robertsonian fusion between two pairs of autosomes, one of them carrying the NOR/rDNA as in S. stalii (and also in E. ephippiger). Whereas the karyotypes of three species of the genus Bradyporus, though showing the same chromosome number and morphology, differed in the number and distribution of NORs/rDNA sites [one autosomal in B. (B.) dasypus versus three in B. macrogaster and B. (C.) oniscus, two of them X-linked]. Trends in karyotype diversification of the taxa based on the present data and previous research are discussed. In some individuals belonging to the species Bradyporus (B.) dasypus and B. (C.) m. macrogaster B chromosomes (Bs) were detected: acrocentric (the smallest elements in the complement) and submetacentric (similar to medium-sized autosomes), respectively.

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