Publications by authors named "Grzegorz K Wagner"

Myrmecophilus acervorum, previously considered a parthenogenetic species widely-distributed in Europe, has been observed to have both sexes in populations inhabiting the central part of the distribution range. Specimens from those heterosexual populations have been found being infected with Wolbachia. New mitochondrial data (COI and 16S markers) revealed the well-supported differentiation of M.

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This is the first morphological description of the mature larva (L2) of the genus , belonging to the tribe Lathrobiini and subtribe Medonina. Detailed illustrations of its structural features are provided. Based on earlier published and new data, 10 and 18 diagnostic larval morphological characters for Paederinae and , respectively, are proposed.

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Six new water extracts (E1-E6) were obtained from nest carton produced by jet black ants and tested for their biochemical and bioactive properties, including antioxidative and anticancer effects. The present study demonstrated significant qualitative and quantitative differences in the content of individual biochemical constituents, as well as bioactive properties between the investigated samples. All tested extracts demonstrated antioxidant properties (determined using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) methods), and the highest antioxidative potential was recorded in extracts E1 and E2 (188.

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This is the morphological description of the mature larva of a member of the genus Dorcatoma Herbst, 1791. It is also one of the most detailed morphological descriptions of an immature stage of the subfamily Dorcatominae Thomson. Complete characteristics of the head, mouthparts, thorax and abdomen are given.

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belongs to the red wood ant species group. Its nests provide a stable, food rich, and temperature and humidity controlled environment, utilized by a wide range of species, called myrmecophiles. Here, we used the high-throughput sequencing of the 16S rRNA gene on the Illumina platform for identification of the microbiome profiles of six selected myrmecophilous beetles (, , , , and ) and their host .

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Detailed external structures of mature larvae of two subcortical species, Nudobius lentus (Gravenhorst) and Gabrius splendidulus (Gravenhorst), are re-described and illustrated based on light and scanning electron microscopy. A combination of characters to distinguish the mature larvae from those of other genera within the tribe Xantholinini for N. lentus, and the subtribe Philonthina for G.

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Saproxylic beetles play a crucial role in key processes occurring in forest ecosystems, and together with fungi contribute to the decomposition and mineralization of wood. Among this group are mycetophilic beetles which associate with wood-decaying fungi and use the fruiting body for nourishment and development. Therefore, their feeding strategy (especially in the case of fungivorous species) requires special digestive capabilities to take advantage of the nutritional value of fungal tissue.

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The paper describes the external structures of the late larval stages of two Palearctic myrmecophilous staphylinids: and associated with the species group. This is the first-ever description of the larva of , and the only complete, detailed account of the morphology of this developmental stage in the genus currently available. For the first time in these two genera, 13 and 10 larval diagnostic features, respectively, are proposed.

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The aim of the study was to describe the morphological ultrastructure, including chaetotaxy, of the previously unknown early (L) and late (L) larval instars of Phloeonomus punctipennis. The diagnostic larval characters for the genus Phloeonomus are proposed for the first time. Morphological differences between L and L refer only to the proportion of length of individual parts of antennae and legs as well as length proportion of urogomphi and their subapical setae.

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The mature larva and pupa of Neomida haemorrhoidalis are described and illustrated for the first time. The mature larva of Bolitophagus reticulatus is completely redescribed and illustrated, and its pupa is described for the first time. The differential diagnosis of the two species is presented.

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