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Cleonis pigra (Scopoli, 1763) (Coleoptera: Curculionidae: Lixinae): Morphological Re-Description of the Immature Stages, Keys, Tribal Comparisons and Biology

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Group Function of Invertebrate and Plant Biodiversity in Agro-Ecosystems, Crop Research Institute, Drnovská 507, CZ-161 06 Praha 6 Ruzyně, Czech Republic
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Independent Researcher, 72311 Melitopol, Ukraine
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Department of Zoology and Plant Protection, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland
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Administration of Podyji National Park, Na Vyhlídce 5, CZ-669 02 Znojmo, Czech Republic
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Department of Ecology & Environmental Sciences, Faculty of Science, Palacký University Olomouc, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic
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Author to whom correspondence should be addressed.
Insects 2019, 10(10), 325; https://doi.org/10.3390/insects10100325
Received: 19 August 2019 / Revised: 12 September 2019 / Accepted: 24 September 2019 / Published: 30 September 2019
Mature larvae and pupae of Cleonis pigra (Scopoli, 1763) (Curculionidae: Lixinae: Cleonini) are morphologically described in detail for the first time and compared with known larvae and pupae of other Cleonini species. The results of measurements and characteristics most typical for larvae and pupae of Cleonini are newly extracted and critically discussed, along with some records given previously. Keys for the determination of selected Cleonini species based on their larval and pupal characteristics are attached. Dyar’s law was used for the estimation of a number of larval instars of C. pigra. Descriptions of habitats, adult behavior, host plants, life cycle, and biotic interactions are reported here. Adults and larvae feed on plants from the Asteraceae family only (genera Carduus, Cirsium, Centaurea, and Onopordum). Oviposition occurs on the base of the plant stem or the root neck. In the process of larval development, a fusiform gall forms. C. pigra and Cyphocleonus achates can coexist in the same locality. In open habitats, the weevils become the prey of carnivorous animals. View Full-Text
Keywords: Coleoptera; Curculionidae; Lixinae; Cleonis; morphology; larva; pupa; biology; host plant; life history Coleoptera; Curculionidae; Lixinae; Cleonis; morphology; larva; pupa; biology; host plant; life history
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Skuhrovec, J.; Volovnik, S.; Gosik, R.; Stejskal, R.; Trnka, F. Cleonis pigra (Scopoli, 1763) (Coleoptera: Curculionidae: Lixinae): Morphological Re-Description of the Immature Stages, Keys, Tribal Comparisons and Biology. Insects 2019, 10, 325.

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