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Callobius claustrarius

species of arachnid

Specimen drawers, botanical folios and brass scientific instruments under study light
Science and natureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionFeb 15, 2021
Entity authorityQ2578448 ↗
Source-derived summary

Callobius claustrarius is a species of spider in the family Amaurobiidae. Males of the species reach 8 mm, females about 11 mm. Head and legs are reddish brown, the abdomen is dark grey with an extended brown surface, dotted with lighter brown specks.

Adults can be found from autumn to spring.

This is a palearctic species. In Europe, it is found in mountainous regions, especially in old, moist forests under rocks. C. claustrarius is a rather rare species.

The subspecies C. claustrarius balcanicus (Drensky, 1940) is only found in Bulgaria.

Footnotes

References

Platnick, Norman I. (2008): The world spider catalog, version 8.5. American Museum of Natural History.

Editorial summary

This brief starts where responsible research should: with the source description of “Callobius claustrarius” as species of arachnid. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewUseful for establishing the present vocabulary of the subject while preserving a route back to the evidence on which that vocabulary rests. The current lead gives the account dated anchors—1940, 2008—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Callobius, claustrarius and species can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the science & nature register because the source frames it as species of arachnid. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Feb 15, 2021. The linked authority identifier is Q2578448. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1940 and 2008.

Critical limits

A general summary may omit uncertainty, sample limits or methodological disagreement that is explicit in the technical record. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.

Best used for
  • Current terminology
  • Classification context
  • Finding cited technical literature
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Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.

Three-step research path

  1. Establish the record: confirm the title “Callobius claustrarius”, its source revision and the description used here.
  2. Expand the search: follow Callobius claustrarius primary sources, Callobius claustrarius archive and Callobius research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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  2. Has classification or technical consensus changed since the cited source?
  3. Is the terminology current, historical or disputed?
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Source & attribution

This entry incorporates text from “Callobius claustrarius” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.