Frequently asked questions

1. Species epithets ending in i/ii

In his monumental work “Bibliographia araneorum” (1945-1961), Bonnet analyzed this case carefully and replaced all “-ii” endings of species epithets dedicated to persons by “-i” (except in original names of persons ending with “i”, e.g. Pavesi, Kulczyński, Canestrini etc.). He also gave an exhaustive grammatical / linguistic explanation (Bonnet 1945: 114ff). The vast majority of arachnologists took over his nomenclature that can now be considered as “common usage”. In 2014/15, when the World Spider Catalog was started in his current web-based format, a discussion came up again whether these endings should be altered to the original spelling, according to ICZN article 33.4. This led to intensive discussions with colleagues from all over the world, unequivocally showing to us that practically nobody wants to alter the names commonly used since Bonnet. Therefore, also for the sake of nomenclatural stability, we decided to leave the names as they are used since 1959 at latest (when vol. 2 of “Bibliographia araneorum” was finalized) by the vast majority of authorities in arachnology. The only exception is Heliophanus kochii because this is covered by a decision of ICZN (Link).

2. Why does WSC not include new faunistic records?

The World Spider Catalog gives a very brief description of the geographic range of a species. This shall provide a general guide and no attempt has been made to ensure that these records are comprehensive. Therefore, new faunistic records will usually not be included. Also, the WSC is not a catalogue or checklist for each country. The taxonomic references are listed, but one cannot find country-wise references in the WSC.

3. Early view status of a publication, DOI links and upcoming papers

For the most recent publications, DOI links are added to the references. In older papers (before 2014) the DOI links are added only cursorial [you may send such additions to]. In the list of the upcoming papers ( articles, which are not published with their final pagination ('early view'), are only listed, when DOI links are active. Only papers which have their final pagination will be included into the WSC and are available as PDF for WSCA members.