Latest Articles from Deutsche Entomologische Zeitschrift Latest 3 Articles from Deutsche Entomologische Zeitschrift https://dez.pensoft.net/ Fri, 29 Mar 2024 10:38:55 +0200 Pensoft FeedCreator https://dez.pensoft.net/i/logo.jpg Latest Articles from Deutsche Entomologische Zeitschrift https://dez.pensoft.net/ Where did the Central European populations of Ornatoraphidia flavilabris (Costa) come from? (Neuropterida, Raphidioptera, Raphidiidae) https://dez.pensoft.net/article/70814/ Deutsche Entomologische Zeitschrift 68(2): 249-259

DOI: 10.3897/dez.68.70814

Authors: Horst Aspöck, Ulrike Aspöck, Julia Walochnik, Edwin Kniha

Abstract: Ornatoraphidia flavilabris (Costa, 1851) is one of 15 snakefly species occurring in southern parts of Central Europe. It is a polycentric Mediterranean faunal element with refugia in the Apennine Peninsula and the Balkan Peninsula. Two phylogeographic questions are dealt with in this paper: (1) Is it possible to differentiate, morphologically or genetically, the Balkanic populations from the Italian? (2) Did the species reach Central Europe from the Balkan or Apennine Peninsula? These questions were investigated using morphological and molecular biological methods. No morphological characters were uncovered which could serve to differentiate specimens from either distribution center. However, differences were detected in cox1, cox3 and 28S genes which allow for a reliable differentiation. Central European populations were largely identical with populations from Italy, but distinctly different from specimens from Greece. This could lead one to assume that the species migrated from Italy to Central Europe, although colonization from the southeast would appear easier due to more favorable orographic conditions. This discrepancy may be explained by the apparent absence of O. flavilabris from the large central part of the Balkan Peninsula, so that a gap exists between the southern and northern areas inhabited by O. flavilabris. Moreover, the species does not occur in eastern parts of Europe. Thus it would be more probable to assume that the occurrence of the species in the northwest Balkan Peninsula can be traced to migrations from the Apennine Peninsula to areas north and northeast of the Adriatic Sea, where O. flavilabris may have colonized the southeast of Central Europe. A migration of Adriatomediterranean faunal elements from the northwest Balkan Peninsula to Central Europe might be of more significance than previously assumed.

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Research Article Mon, 30 Aug 2021 16:47:08 +0300
Morphology, pollen preferences and DNA-barcoding of five Austrian species in the Colletes succinctus group (Hymenoptera, Apidae) https://dez.pensoft.net/article/55732/ Deutsche Entomologische Zeitschrift 68(1): 101-138

DOI: 10.3897/dez.68.55732

Authors: Katharina Zenz, Herbert Zettel, Michael Kuhlmann, Harald W. Krenn

Abstract: Most species of the Colletes succinctus group sensu Noskiewicz, 1936 are taxonomically uncertain. This study has chosen an integrative approach, including pollen analysis, morphology, male genitalia, morphometry, cuticle sculpture and DNA-barcoding (CO1) to investigate the five species that were reported from Austria. It includes a detailed analysis of the male genitalia and the first description of the C. pannonicus male. A syntype male from the island of Crete was designated as the lectotype of Colletes succinctus brevigena Noskiewicz, 1936 to fix the species identity. New distinguishing characters were found: in females the shape of the dorsal end of the fovea facialis and, in both sexes, the structure of maxillary palpi, as well as the different puncturation on the mesopleura. Unknown structures on sterna and genitalia of the males proved to be reliable morphological characters. An identification key is provided for all studied species. Morphometry of females did not allow a clear distinction of species. CO1 sequencing confirmed previous studies that only C. collaris clearly deviates from the other species, including C. pannonicus that was analysed for the first time. Pollen analysis showed polylectic, as well as oligolectic, pollen-collecting behaviour. The collected pollen of C. pannonicus confirmed the field observations that this species is strictly oligolectic on Tripolium pannonicum. Due to pronounced intraspecific variation, it is assumed that the species of the C. succinctus group are either species in statu nascendi or very young species. Therefore, it remains important to include ecological data in species identification.

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Research Article Tue, 2 Feb 2021 16:14:43 +0200
A DNA barcode library for ground beetles of Germany: the genus Agonum Bonelli, 1810 (Insecta, Coleoptera, Carabidae) https://dez.pensoft.net/article/56163/ Deutsche Entomologische Zeitschrift 67(2): 197-207

DOI: 10.3897/dez.67.56163

Authors: Michael J. Raupach, Karsten Hannig, Jérome Morinière, Lars Hendrich

Abstract: The ground beetle genus Agonum Bonelli, 1810 is a large genus of the tribe Platynini with many species that show high amounts of intraspecific variations, making a correct identification challenging. As part of the German Barcode of Life initiative, this publication provides a comprehensive DNA barcode library for species of Agonum that are reported for Germany. In total, DNA barcodes from 258 beetles and 23 species were analysed using the Barcode of Life Data System (BOLD) workbench, including sequences from former studies and 68 newly-generated sequences. The neighbour-joining analyses, based on K2P distances, revealed distinct clustering for all studied species, with unique Barcode Index Numbers (BINs) for 15 species (65%). BIN sharing but distinct clustering was found for three species pairs: Agonum micans/Agonum scitulum, Agonum impressum/Agonum sexpunctatum and Agonum duftschmidi/Agonum emarginatum. The given dataset and its analysis represent another important step in generating a comprehensive DNA barcode library for the ground beetles of Germany and Central Europe in terms of modern biodiversity research.

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Research Article Mon, 19 Oct 2020 17:00:53 +0300