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Adult females of the five Central European wolf spiders Trochosa hispanica Simon, 1870, T. robusta (Simon, 1876), T. ruricola (De Geer, 1778), T. spinipalpis (F. O. P.-Cambridge, 1895), and T. terricola Thorell, 1856 were morphologically analysed. We defined sets of continuous and binary (presence/absence) variables. Continuous data of various epigynal and carapace dimensions were subjected to Principal Components Analysis (PCA). Using the PC loadings each individual was plotted along the PC axis in order to find gaps/overlaps between the species. The binary data sets were subjected to Hierarchical Cluster Analysis (HCA) in order to find characters that clearly separate the five Trochosa species. Using PCA only individuals of T. robusta and T. ruricola and of T. robusta and T. hispanica could be separated from each other. Using HCA all five species could clearly be separated by epigynal and vulval characteristics.
A new feature for the separation of Trochosa spinipalpis and T. terricola males (Araneae, Lycosidae)
(2006)
A new feature on the tip of the palp, which enables the separation of male Trochosa spinipalpis (F. O. P.-Cambridge, 1895) from T. terricola Thorell, 1856, is described. T. terricola exhibits a hairless strip on the tip of the palp, while T. spinipalpis lacks this feature and has long hairs on the whole palp.
The first record of the Mediterranean spider Zelotes tenuis (L. Koch, 1866) in Austria (Burgenland, Leithaprodersdorf ) was made in a small meadow strip which is situated between a moist ditch and a small grassy road verge. The site is partly shaded by adjacent trees and shrubs. Notes are given on the records, zoogeography and ecology of Z. tenuis.
Sauron rayi (Simon, 1881) is recorded in Austria for the first time. Male and female specimens of this rare European spider were found in two “Austrian pine forests” in Lower Austria. Data on distribution, habitat, phenology and Red List status from the Austrian localities and from published records in other countries are presented.
In einem teilweise stillgelegten Steinbruch in Bad Deutsch-Altenburg nahe Hainburg/Donau (NÖ) wurde die epigäische Spinnenfauna auf sechs Untersuchungsflächen unterschiedlichen Sukzessionsalters mittels Barberfallen in der Zeit von 27. März bis 29. Oktober 2006 untersucht. Es wurden 79 Arten mit 845 adulten Individuen aus 18 Familien gefangen. Sieben Arten kamen auf allen Untersuchungsflächen vor. 28 Arten werden in den Roten Listen Tschechiens und/oder der Slowakei in einer der Gefährdungskategorie eingestuft. Die wenig bekannte Arten Thanatus pictus L. Koch, 1881 und Xysticus embriki Kolosváry, 1935 werden genauer vorgestellt. Der Vergleich der sechs Spinnengemeinschaften des untersuchten Steinbruchs mit 16 geographisch benachbarten Spinnengemeinschaften aus dem Gebiet der Parndorfer Platte zeigt einen kontinuierlichen Sukzessionsverlauf innerhalb der Ruderalfluren von den jüngsten zur ältesten Fläche und weiter zu intakten gepflegten Trockenrasen, und über verbrachende und verbuschende Trockenrasen sowie Hecken und Gebüsch-Standorten zu natürlichenWäldern der Region.
