Linyphia sagana
species of arachnid

Linyphia sagana is a species of spider in the family Linyphiidae (sheet weaver spiders). It is endemic to Japan.
Etymology
The species name sagana refers to Saga, a region in Japan, indicating the area where the holotype was collected.
Taxonomy
Linyphia sagana was first described by Friedrich Karl Wilhelm Dönitz and Embrik Strand in 1906 as part of their comprehensive work on Japanese spiders.
Distribution
L. sagana is endemic to Japan, where it was originally discovered and described.
Description
Only the female has been described for this species. The original description by Dönitz and Strand indicates a total length of 5 mm for the female specimen.
The female has a greyish-brown cephalothorax and extremities, with the opisthosoma being yellow above and brown below. A distinctive feature is a hill-like elevation running across the opisthosoma immediately behind the front third, rising gently and sloping steeply behind, with whitish coloration. Along the sides of the abdomen runs a narrow black line, with a somewhat longer black transverse line both in front of and behind the hill-like elevation.
The public source identifies “Linyphia sagana” as species of arachnid. This brief keeps that definition visible, then builds a research path around Linyphia, sagana and species.
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A short description can identify a subject without explaining its stakes. For “Linyphia sagana”, the useful work is to connect “species of arachnid” to the records capable of establishing context and consequence.
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 Mar 27, 2026. The linked authority identifier is Q3161484. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1906.
Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. 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.
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This entry incorporates text from “Linyphia sagana” 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.