Hydaticus aruspex
CR

Hydaticus aruspex

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Hydaticus_aruspex

Overview

Hydaticus aruspex is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America and the Palearctic.

The Haruspex Predaceous Diving Beetle faces severe threats primarily from habitat destruction and water pollution in its limited freshwater environments. Agricultural runoff, urban development, and water extraction have degraded the quality of ponds and streams where this species depends for survival and reproduction.

Threat summary

Habitat

Hydaticus aruspex inhabits freshwater wetlands such as ponds, marshes, and slow-moving streams in Madagascar, relying on stable, unpolluted still-water systems for its aquatic life stages.

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 Åland Islands

Scarce BlackneckCR

Scarce Blackneck

Lygephila craccae

Unknown
EN

Dolichopus notatus

Unknown
Haplodrassus cognatusCR

Haplodrassus cognatus

Unknown
Grey Bush-cricketEN

Grey Bush-cricket

Platycleis albopunctata

Unknown

Frequently asked questions

Why is Hydaticus aruspex classified as Critically Endangered?
Hydaticus aruspex 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. The Haruspex Predaceous Diving Beetle faces severe threats primarily from habitat destruction and water pollution in its limited freshwater environments. Agricultural runoff, urban development, and water extraction have degraded the quality of ponds and streams where this species depends for survival and reproduction.
Where does Hydaticus aruspex live?
Hydaticus aruspex occurs in Åland Islands, Belarus, Bulgaria, Canada, Denmark, and Estonia (plus 11 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 Hydaticus aruspex?
The main threats to Hydaticus aruspex 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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