Taxonomy
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Insecta
- Order: Coleopica (beetles)
- Family: Carabidae (ground beetles)
- Subfamily: Trechinae
- Genus: Trechus
- Species: Trechus quadristriatus
- Authority: (Motschulsky, 1845)
Description
Trechus quadristriatus is a small, elongated ground beetle belonging to the subfamily Trechinae. Like other members of the genus, it possesses a flattened body adapted for life in leaf litter and under stones. The species epithet “quadristriatus” refers to the presence of four distinct longitudinal grooves (striae) on each elytron, a characteristic used in its identification.
Distribution
The species is known from the Palearctic region. Records indicate its presence in various European countries (e.g., France, Italy, Austria) and parts of western Asia. Precise range limits are not comprehensively mapped, and occurrence data are derived from museum collections and biodiversity databases such as GBIF.
Habitat and Ecology
- Habitat: Temperate forests, alpine meadows, and sub‑montane grasslands; commonly found under stones, within leaf litter, and in moist soil microhabitats.
- Behavior: Nocturnal and predatory, feeding on small arthropods and other invertebrates.
- Life cycle: As typical for ground beetles, it undergoes complete metamorphosis (egg → larva → pupa → adult). Detailed phenology for this species is not well documented.
Conservation Status
There is no specific assessment of Trechus quadristriatus on the IUCN Red List. The species does not appear to be under significant threat, but localized habitat disturbance could affect regional populations.
Research and References
Information on Trechus quadristriatus is sourced from taxonomic catalogues (e.g., Catalogue of Life, Carabidae of the World) and occurrence records in global biodiversity portals (e.g., GBIF). No recent revisionary studies focusing exclusively on this species have been identified in widely accessible scientific literature.
Note: The above synthesis reflects currently available encyclopedic and database information; any gaps in distribution, ecology, or conservation details are due to limited published data.
