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Biologia (Bratisl). 2018;73(2):151-164. doi: 10.2478/s11756-018-0026-5. Epub 2018 Mar 19.

Distribution, habitat affinities and phenology of the Micrargus herbigradus-species group (Araneae: Linyphiidae) in Poland.

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1Department of Zoology and Animal Physiology, Institute of Biology and Environmental Protection, Faculty of Mathematics and Natural Sciences, Pomeranian University in Słupsk, Arciszewskiego 22b, 76-200 Słupsk, Poland.
2Department of Zoology, Faculty of Biology and Biotechnology, Maria Curie Skłodowska University, Akademicka 19, 20-033 Lublin, Poland.
3Department of Biodiversity and Evolutionary Taxonomy, University of Wrocław, Przybyszewskiego 65, 51-148 Wrocław, Poland.


We review the known information on the distribution and habitat affinities of the Micrargus herbigradus-species group in Poland. The analysis is based on a thorough literature survey, our own materials, and verification of some older collections. We give new diagnostic drawings and review the characters that are useful in identification of species within the group. Three species are present in Poland: M. herbigradus (Blackwall, 1854), M. apertus (O.-P. Cambridge, 1870) and M. georgescuae Millidge, 1976. The latter is recorded for the first time in the country, and we add numerous new localities for the two former species. Micrargus herbigradus is common and widespread in Poland, living in various habitats, with only a slight preference to forests. In contrast, M. apertus is widely distributed but rarely found, while its affinity to forests is the highest within the group. The records of this species are most numerous in lowland forests (up to c. 300 m a.s.l), but it can also be found at higher altitudes. M. georgescuae is found only in montane habitats, both in the Sudetes and the Carpathian Mountains, from above 650 m a.s.l. The adults of all three species occur the whole year round, but seem to be most abundant in May and June.


Central Europe; Micrargus apertus; Micrargus georgescuae; Micrargus herbigradus; Mountains; New records

Conflict of interest statement

The authors declare that they have no conflict of interest.

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