590 Tiere (Zoologie)
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This paper offers an explanation of each of the 44 scientific names given by Leopold Krüger (1861-1942) to odonate taxa together with that for the names of all the genera into which they are sorted now. But prior to that there is some information about the life and work of this scientist, and in the final part his preferences in odonatological nomenclature are compared with those in the names created by F.M. Brauer and F. Ris and some impressions of his studies on Neuroptera are presented and considerations about his aspirations in his work are given.
In May 2018, 34 dragonfly species were recorded on Wolin (21), Usedom (30) and the adjacent mainland (21). The most frequent spring species in the area were Coenagrion puella, Libellula quadrimaculata, C. pulchellum, Ischnura elegans, Erythromma najas, Brachytron pratense and Cordulia aenea. C. lunulatum and Calopteryx virgo were recorded for the first time on Usedom, while Anax parthenope, Libellula fulva and Leucorrhinia caudalis were recorded for the first time on Wolin. The occurrence of Coenagrion armatum, which had been recorded in 2016 on Usedom, could not be confirmed.
The quantitative results of the survey are given for different types of water bodies (ditches, pools, ponds, lakes, bog lakes). The average number of species per water body was highest in bog lakes (7.5) and lowest (3.4) in temporary pools. In comparison to older studies from the area, the flight season started 13.7 days earlier in 2018 than in years documented prior to 1989. This might be explained by climatic changes. The species composition, however, has remained rather stable – at least on Usedom and the mainland. On Wolin, climatic factors as well as habitat loss and transformation have led to a species composition that is different from the one recorded in the first half of the 1970s.
An unexpected new subgenus and species of Campodeidae (Diplura), Plusiocampa (Pentachaetocampa) inopinata subgen. et sp. nov., a troglobitic species found in Schallsinger Höhle in an isolated karstic region in southwestern Germany is described. The new taxon shows two unique characters for the genus Plusiocampa: five dorsal femoral macrosetae and the presence of g1-glandular setae in females. Two other Plusiocampa species have been studied and taxonomic remarks made for them; both are also cave dwelling species from Germany: Plusiocampa dobati Condé in Dobat, 1975 studied from eight caves in the Swabian Alb, and one unnamed species of Plusiocampa (Plusiocampa) from four caves in the Franconian Alb. The biogeographical and taxonomic affinities among Plusiocampa species of Central Europe are discussed. The distribution of Plusiocampa species in Central Europe runs alongside the frontier of the Pleistocene glaciations, with non-troglomorphic Plusiocampa species adjacent to the glacial limits and troglomorphic Plusiocampa species below. Worthy of note is the presence only in the northeast of the Central Alps of two relict Plusiocampinae species, the already known Hystrichocampa pelletieri Condé, 1948 and the new species P. (P.) inopinata subgen. et sp. nov.