12-spotted diving beetle
CR

12-spotted diving beetle

Stictotarsus duodecimpustulatus

Unknown

Photo: Photo: (c) Felix Riegel, some rights reserved (CC BY-NC), uploaded by Felix Riegel

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Stictotarsus duodecimpustulatus faces severe threats from habitat degradation and water pollution in its limited aquatic environments. The species' extremely restricted range makes it particularly vulnerable to localized environmental changes, with agricultural runoff and urban development posing immediate risks to water quality in its breeding sites.

Threat summary

Habitat

This aquatic beetle inhabits small freshwater pools, ponds, and slow-moving streams with dense aquatic vegetation. The species requires clean, well-oxygenated water with specific chemical conditions for successful reproduction and larval development.

Other threatened species in Dytiscidae

CR

Hydroporus longulus

Unknown
Graptodytes granularisCR

Graptodytes granularis

Unknown
CR

Porhydrus lineatus

Unknown
VU

lesser spangled diving beetle

Graphoderus cinereus

Unknown

Threatened in Austria

VU

Lepiota echinella

Unknown
EN

Lyophyllum deliberatum

Unknown
VU

Large Tree-chernes

Dendrochernes cyrneus

Unknown
EN

Pipizella nigriana

Unknown

Frequently asked questions

Why is 12-spotted diving beetle classified as Critically Endangered?
12-spotted diving beetle is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Stictotarsus duodecimpustulatus faces severe threats from habitat degradation and water pollution in its limited aquatic environments. The species' extremely restricted range makes it particularly vulnerable to localized environmental changes, with agricultural runoff and urban development posing immediate risks to water quality in its breeding sites.
Where does 12-spotted diving beetle live?
12-spotted diving beetle occurs in Austria, Belgium, Denmark, France, Germany, and Ireland (plus 10 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to 12-spotted diving beetle?
The main threats to 12-spotted diving beetle are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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