anniversary, Heinz Hiebsch

A list of european parasitic flies (Diptera) and their prey is presented. The Hippoboscidae: Melophagus ovinus (Linnaeus, 1758) is described as an accidental parasite of Alopecosa striatipes (C.L. Koch, 1837). 24 species of parsitic flies and 20 spider host species are listed.

The cave spider Nesticus eremita is recorded in Mainz and Mannheim in the sewerage. It seems that this species has a wider distribution as suggested before. It is supposed that the species, originally distributed in the southern alps respectively in southern Europe, was introduced in the last hundred years, whereby the Rhine river (driftwod, riparian habitats) is suggested besides the introduction by man as one possible way of introducing. During examining individuals of N. eremita and N. cellulans it was found, that the position of the thrichobothrium is not useful for distinguishing these species, but the genital characters are.

The communities of bark-dwelling spiders and false scorpions on standing trunks of living and dead oaks (Quercus robur) of various stages were studied in an ancient woodland in the lowland of NW-Germany. The investigations were carried out from march to october 1996 by use of 28 emergencs traps. For comparative purpose one stem-eclector was used. All traps were installed at a height of 2 meters. The appropriateness of these methods for collecting spiders is discussed. A total of 1828 spiders (41 species) and 57 false scorpions (1 species) were encountered. Abundance gradients are analysed with regard to bark-structure, insolation and age of dead wood. Three species are first recorded in the NW-German Plan: Dipoena torva, Haplodrassus cognatus and Synema globosum. Hitherto the predominant spieders Thyreosthenius parasiticus and Haplodrassus cognatus have not been found on bark abundantly. Thus, the structure of the bark-dwelling fauna varies considerably with region, biotope structure and historical aspects. The occurence of Dendrochernes cymeus, which in Britain is associtated with ancient woodlands, indicates that this species could be restricted to such woodlands in Northern Germany, too.

List of the Central European families of spiders, with a list of remarkable nomenclatural changes of species and genera by Platnick (1997), with remarks and additions.

Study on the spider fauna (Arachnida: Araneae) in the nature reserve "Bültenmoor" near Lüneburg, Germany

Autecology and distribution of some rare spiders from the nature reserve "Mittlere Oranienbaumer Heide" (Sachsen-Anhalt, Germany)

First record of Erigonoplus globipes (L. Koch, 1872) (Araneae: Linyphiidae) from North Rhine-Westphalia (Germany)

Sitticus inexpectus (Araneae, Salticidae) new to Italy

The finding of the species Neobisium simile (Arachnida, Pseudoscorpiones) at the foot of the Teutoburger Wald mountains

book review: Thomas Baumann (1997): An ecological and coenotical population survey on the impact of habitat quality and habitat fragmentation on spider populations in dry grasslands using the spider Eresus cinnaberinus (Oliv., 1789) as an example.

Diversa

Diversa

congress invitation

report

book review: Jutta Barthel: Einfluss von Nutzungsmuster und Habitatkonfiguration auf die Spinnenfauna der Krautschicht (Araneae) in einer süddeutschen Agrarlandschaft

book review: N.I. Platnick: Advances in spider taxonomy 1992-1995. With redescriptions 1940-1980