Dark Dagger
VU

Dark Dagger

Acronicta tridens

Unknown

Photo: iNaturalist: (c) Gábor Keresztes, some rights reserved (CC BY-NC), uploaded by Gábor Keresztes

Overview

The dark dagger is a moth of the family Noctuidae. The species was first described by Michael Denis and Ignaz Schiffermüller in 1775. It is distributed throughout Europe, Turkey, the Near East, the European part of Russia, southern Siberia, the Ural, the Russian Far East, the Korean Peninsula, China and Japan (Hokkaido).

The Dark Dagger moth faces significant population pressures from habitat loss due to agricultural intensification and urban development, which reduces availability of its host plants and suitable breeding sites. Climate change is altering the timing of larval development and host plant phenology, creating mismatches that affect reproductive success.

Threat summary

Habitat

Occupies deciduous and mixed woodlands, hedgerows, parks, and gardens where host plants including birch, alder, and various fruit trees are present. Adults are attracted to artificial lights and can be found in suburban areas with sufficient vegetation cover.

Frequently asked questions

Why is Dark Dagger classified as Vulnerable?
Dark Dagger is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. The Dark Dagger moth faces significant population pressures from habitat loss due to agricultural intensification and urban development, which reduces availability of its host plants and suitable breeding sites. Climate change is altering the timing of larval development and host plant phenology, creating mismatches that affect reproductive success.
Where does Dark Dagger live?
Dark Dagger occurs in Åland Islands, Austria, Belarus, Belgium, Bosnia & Herzegovina, and Bulgaria (plus 37 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 Dark Dagger?
The main threats to Dark Dagger 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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