Sipalolasma
genus of arachnids
Sipalolasma is a genus of brushed trapdoor spiders first described by Eugène Simon in 1892. It is restricted to South Asia and parts of Africa.
Description
Sipalolasma humicola, the South African representative, has a total length of 7 mm. The carapace is longer than wide, and the maxillae bear 6 spicules at the lower edge. The ocular group is separated from the anterior edge by the diameter of the anterior median eyes. The posterior eye row is slightly procurved, and the ocular group is wider than long.
The anterior lateral eyes are the largest, while the anterior median eyes are the same size as the posterior lateral eyes. The lateral eyes are separated by less than the large diameter of the posterior lateral eyes. The fovea is reduced to a circular pit. The opisthosoma is hirsute, and there are four spinnerets with the terminal segment of the posterior spinnerets being shorter than the penultimate segment.
The public source identifies “Sipalolasma” as genus of arachnids. This brief keeps that definition visible, then builds a research path around Sipalolasma, genus and arachnids.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Sipalolasma”, the useful work is to connect “genus of arachnids” to the records capable of establishing context and consequence.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Oct 25, 2025. The linked authority identifier is Q2708695. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1892.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. 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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Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
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Questions for further research
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This entry incorporates text from “Sipalolasma” 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.