Moebelia berolinensis comb. nov., eine in Mitteleuropa selten gesammelte Zwergspinne der Baumrinde (Araneae: Linyphiidae: Erigoninae) (original) (raw)
Related papers
loricula.de
Spiders from branch-beating samples in tree crowns (Arachnida: Araneae), with remarks on Cinetata gradata (Linyphiidae) and Theridion boesenbergi (Theridiidae). In winter 2000/01 and in June 2001 branch-beating methods were used for sampling spiders in canopies of spruce (Picea abies) and Douglas-fir (Pseudotsuga menziesii) in SW-Bavaria (Germany). Differences in spider assemblages between the two tree species are discussed with particular emphasis on the dominant species and taxa. For the rare species Theridion boesenbergi Strand, 1904 remarks on their occurrence in Bavaria, Germany and Europe are given. For Cinetata gradata (Simon, 1881) we present an update to the entire known distribution including a new map. For both species new records are specified and discussed concerning habitat preference, phenology and distribution. Both species seem to be obligate tree colonisers, C. gradata primarily in the canopy stratum. Adults of C. gradata are to be found during all months of the year; T. boesenbergi exhibits an abundance peak in June, males are known to occur from May to August and females the whole year round. The distribution of both species is restricted to Europe, excluding the northern and western parts (Arctic and Atlantic climate) and the Mediterranean zone.
Argiope bruennichi, a top predator on Sympetrum species? (Aranea: Araneidae; Odonata: Libellulidae). – A total of 12 Sympetrum individuals were counted in a small reed west Crailsheim, NE-Wurttemberg, caught in orb-webs of the wasp spider Argiope bruennichi on 30-VIII-2013. The orb-webs were situated along the border between the mowed meadow and the unmowed reed, preferentially used as oviposition site of Sympetrum sanguineum. In a single orb-web, five individuals of S. sanguine were caught. The trapped animals corresponded to about a quarter of the individuals present at this location on that time of day. It is discussed, if the further spreading of the wasp spider could have an impact on the Sympetrum populations, mainly because egg laying females are affected most.
Arachnologische Mitteilungen
Ceraticelus bulbosus (Araneae, Linyphiidae)-first record from Germany and other remarkable records of spiders in eastern Germany. The first record of the very rare linyphiid spider Ceraticelus bulbosus (Emerton, 1882) from Germany is presented. Furthermore records of Agroeca dentigera, Agyneta arietans, Bathyphantes setiger, Brommella falcigera, Crustulina sticta, Erigone dentigera, Meioneta mossica, and Pardosa morosa and other rare spiders are reported.