Macrocentrus

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František Šťáhlavský - One of the best experts on this subject based on the ideXlab platform.

  • Karyotypes of Southeastern Turkish Scorpions Hottentotta saulcyi and Buthacus Macrocentrus (Scorpiones: Buthidae)
    European Journal of Biology, 2019
    Co-Authors: Halil Koç, Ersen Aydın Yağmur, František Šťáhlavský
    Abstract:

    Objective: The species Hottentotta saulcyi is widely distributed from Mardin to Hakkari while the distribution of Buthacus Macrocentrus is limited to the south-east of Turkey (only Şanliurfa). The aim of this study is to analyze the cytogenetic structure of Hottentotta saulcyi and Buthacus Macrocentrus. Materials and Methods: The specimens were collected during the night from Şirnak and Şanliurfa using a UV lamp. The male Hottentotta saulcyi were collected from Şirnak and male and female Buthacus Macrocentrus from Şanliurfa. Chromosome preparations were made using cells from the male testes and the female ovariuteri of the species studied. Chromosome preparations were made using the classical spreading method. Results: The diploid chromosome number for Hottentotta saulcyi was 2n=14, and 2n=28 for Buthacus Macrocentrus. Conclusion: The karyotypes of Hottentotta saulcyi and Buthacus Macrocentrus have been presented for the first time. Both analyzed species have holocentric chromosomes that gradually decrease in size. Quadrivalent and hexavalent were observed during the first meiotic division in males of Buthacus Macrocentrus.

Kovařík František - One of the best experts on this subject based on the ideXlab platform.

  • Scorpions of Iran (Arachnida, Scorpiones). Part IX. Hormozgan Province, with a description of \u3cem\u3eOdontobuthus tavighiae\u3c/em\u3e sp. n. (Buthidae)
    Marshall Digital Scholar, 2016
    Co-Authors: Navidpour Shahrokh, Soleglad, Michael E., Fet Victor, Kovařík František
    Abstract:

    Twenty species of scorpions belonging to three families are reported from the Hormozgan Province of Iran. Of these, eight species and subspecies are recorded from the province for the first time: Buthacus Macrocentrus (Ehrenberg, 1828), Compsobuthus persicus Navidpour et al., 2008, Iranobuthus krali Kovařík, 1997, Mesobuthus eupeus persicus (Pocock, 1899), Mesobuthus phillipsii (Pocock, 1889), Odontobuthus bidentatus Lourenço & Pézier, 2002, Odontobuthus doriae (Thorell, 1876), and Razianus zarudnyi (Birula, 1903). Odontobuthus tavighiae sp. n. is described and compared with all species of the genus Odontobuthus Vachon, 1950. Paraorthochirus goyffoni Lourenco et Vachon, 1995 is synonymized with Orthochirus farzanpayi (Vachon et Farzanpay, 1987). Also presented are keys to all species of scorpions found in the Hormozgan province and all species of the genus Odontobuthus Vachon, 1950

  • Taxonomic position of species of the genus \u3cem\u3eButhacus\u3c/em\u3e Birula, 1908 described by Ehrenberg and Lourenço, and description of a new species (Scorpiones: Buthidae)
    Marshall Digital Scholar, 2015
    Co-Authors: Kovařík František
    Abstract:

    Lectotypes are designated for Androctonus (Leiurus) leptochelys Ehrenberg, 1829, Androctonus (Leiurus) thebanus Ehrenberg, 1828 and Androctonus (Leiurus) Macrocentrus Ehrenberg, 1828. In recent papers the latter two species have been regarded as synonyms of Buthacus leptochelys, however its type series is composed of seven specimens that in reality belong to three species. The type series of Androctonus leptochelys includes specimens belonging to Buthacus leptochelys and Buthacus spatzi (Birula, 1911), and the type series of Androctonus Macrocentrus includes specimens belonging to Buthacus leptochelys and Buthacus tadmorensis (Simon, 1892). In order to preserve stability, I designate as the lectotype of A. leptochelys a specimen that does not cause changes in the taxonomic position of Buthacus leptochelys and its complex. Upon designation of the lectotype of A. Macrocentrus (Fig. 8), it becomes a valid species Buthacus Macrocentrus (Ehrenberg, 1828) stat. n. with the synonyms Buthus tadmorensis Simon, 1892, Buthus pietschmanni Penther, 1912 and Buthacus yotvatensis Levy, Amitai & Shulov, 1973. Buthacus mahraouii Lourenço, 2004 from Morocco is considered a nomen dubium because its description is confused and characters unclear, which precludes determination of whether it belongs to the Buthacus leptochelys complex or the Buthacus arenicola complex. Buthacus ehrenbergi sp. n. from Mauritania is described. This new species belongs in the Buthacus leptochelys complex and has tibial spurs moderate on legs IV and extremely reduced on legs III, which distinguishes it from the other two species of Buthacus known to occur in Mauritania. B. huberi Lourenço, 2001 has tibial spurs on legs III and IV reduced, and B. occidentalis Vachon, 1953 has them moderately well developed. A key to the species of the genus Buthacus is also presented

Halil Koç - One of the best experts on this subject based on the ideXlab platform.

  • Karyotypes of Southeastern Turkish Scorpions Hottentotta saulcyi and Buthacus Macrocentrus (Scorpiones: Buthidae)
    European Journal of Biology, 2019
    Co-Authors: Halil Koç, Ersen Aydın Yağmur, František Šťáhlavský
    Abstract:

    Objective: The species Hottentotta saulcyi is widely distributed from Mardin to Hakkari while the distribution of Buthacus Macrocentrus is limited to the south-east of Turkey (only Şanliurfa). The aim of this study is to analyze the cytogenetic structure of Hottentotta saulcyi and Buthacus Macrocentrus. Materials and Methods: The specimens were collected during the night from Şirnak and Şanliurfa using a UV lamp. The male Hottentotta saulcyi were collected from Şirnak and male and female Buthacus Macrocentrus from Şanliurfa. Chromosome preparations were made using cells from the male testes and the female ovariuteri of the species studied. Chromosome preparations were made using the classical spreading method. Results: The diploid chromosome number for Hottentotta saulcyi was 2n=14, and 2n=28 for Buthacus Macrocentrus. Conclusion: The karyotypes of Hottentotta saulcyi and Buthacus Macrocentrus have been presented for the first time. Both analyzed species have holocentric chromosomes that gradually decrease in size. Quadrivalent and hexavalent were observed during the first meiotic division in males of Buthacus Macrocentrus.

Hughes, Laura L - One of the best experts on this subject based on the ideXlab platform.

  • The Parasitoid Complex of First Generation \u3ci\u3eOstrinia Nubilalis\u3c/i\u3e (Lepidoptera: Pyralidae) Larvae in Northwest Ohio
    ValpoScholar, 2018
    Co-Authors: Pavuk, Daniel M, Hughes, Laura L
    Abstract:

    A survey of first generation European corn borer (Ostrinia nubilalis) larvae was conducted during 1997 in six cornfields located in northwestern Ohio in order to determine the larval parasitoid complex utilizing this host. Collected larvae were held under constant conditions until the larvae completed development or parasitoids emerged. The following species were recorded: Eriborus terebrans (Hymenoptera: Ichneumonidae), Macrocentrus grandii (Hymenoptera: Braconidae), Sympiesis viridula (Hymenoptera: Eulophidae), and Lixophaga sp. (Diptera: Tachinidae), Levels of parasitism in the different fields ranged from 14.3 to 83.3%. Future research will include surveys of additional fields and sampling of O. nubilalis over the entire season in the northwest Ohio region

Ersen Aydın Yağmur - One of the best experts on this subject based on the ideXlab platform.

  • Karyotypes of Southeastern Turkish Scorpions Hottentotta saulcyi and Buthacus Macrocentrus (Scorpiones: Buthidae)
    European Journal of Biology, 2019
    Co-Authors: Halil Koç, Ersen Aydın Yağmur, František Šťáhlavský
    Abstract:

    Objective: The species Hottentotta saulcyi is widely distributed from Mardin to Hakkari while the distribution of Buthacus Macrocentrus is limited to the south-east of Turkey (only Şanliurfa). The aim of this study is to analyze the cytogenetic structure of Hottentotta saulcyi and Buthacus Macrocentrus. Materials and Methods: The specimens were collected during the night from Şirnak and Şanliurfa using a UV lamp. The male Hottentotta saulcyi were collected from Şirnak and male and female Buthacus Macrocentrus from Şanliurfa. Chromosome preparations were made using cells from the male testes and the female ovariuteri of the species studied. Chromosome preparations were made using the classical spreading method. Results: The diploid chromosome number for Hottentotta saulcyi was 2n=14, and 2n=28 for Buthacus Macrocentrus. Conclusion: The karyotypes of Hottentotta saulcyi and Buthacus Macrocentrus have been presented for the first time. Both analyzed species have holocentric chromosomes that gradually decrease in size. Quadrivalent and hexavalent were observed during the first meiotic division in males of Buthacus Macrocentrus.