Amphigonic populations of the weevil species Brachysomus echinatus and Cathormiocerus aristatus (Coleoptera: Curculionidae: Entiminae) in the Western Carpathians
Amfigonní populace nosatců Brachysomus echinatus a Cathormiocerus aristatus (Coleoptera: Curculionidae: Entiminae) v Západních Karpatech
English, Czech summary
Klapalekiana 45(1–2): 1-7, 2009
Stanislav Benedikt
Published in print: 10th November 2009
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Abstract: Amphigonic populations of the weevil species Brachysomus echinatus (Bonsdorff,
1785) and Cathormiocerus aristatus (Gyllenhal, 1827) are presented from several
localities in Slovakia. The first species has been considered exclusively
parthenogenetic so far and the second one has been known in the amphigonic
population only from Spain. Male of Brachysomus echinatus is described and its
aedeagus is illustrated and amphigonic specimens are compared to parthenogenetic
females. The origin of these amphigonic populations in the Carpathians is
briefly discussed.
Key words: Coleoptera, Curculionidae, Entiminae, Brachysomus, Cathormiocerus, male, amphigonic populations, Carpathian Mts., central Europe, Slovakia