Taxonomy
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Insecta
- Order: Coleoptera
- Family: Carabidae (ground beetles)
- Subfamily: Scaritinae
- Genus: Clivina Latreille, 1802
- Species: Clivina monilicornis (Dejean, 1825)
Etymology
The specific epithet monilicornis derives from the Latin monili (“necklace”) and cornis (“horn”), referring to the beetle’s antennae, which are composed of bead‑like (moniliform) segments.
Description
Clivina monilicornis is a small to medium‑sized ground beetle, typically 5–7 mm in length. The body is elongated and flattened, adapted for a burrowing lifestyle. Dorsally, the beetle is dark brown to black with finely striated elytra. The pronotum is slightly broader than the head and lacks pronounced lobes. Antennae consist of 11 segments, the distal segments markedly moniliform, a diagnostic feature mentioned in the original description. Legs are cursorial, with fore‑tibiae modified for digging.
Distribution and Habitat
The species has been recorded from a range of locations across Europe, including the United Kingdom, France, Italy, Spain, and parts of Central Europe. Isolated records from the western Mediterranean region suggest a broader distribution, though the complete range has not been fully mapped. C. monilicornis inhabits moist soils, riverbanks, agricultural fields, and open grasslands, often found under stones, leaf litter, or within shallow burrows.
Biology and Ecology
As a typical member of the Scaritinae, C. monilicornis is primarily nocturnal and predatory, feeding on small soil invertebrates such as nematodes, arachnids, and larvae of other insects. Its burrowing behavior aids in soil aeration and contributes to the decomposition process. Reproduction follows the general carabid pattern: females lay eggs in the soil, and larvae develop underground before pupating and emerging as adults.
Conservation Status
No specific assessment for Clivina monilicornis has been published by major conservation organizations (e.g., IUCN). The species is not known to be under immediate threat; however, habitat alteration through intensive agriculture or urban development could impact local populations.
References
- Dejean, P.F.M.A. (1825). Species général des coléoptères.
- Löbl, I., & Löbl, D. (Eds.). (2017). Catalogue of Palaearctic Coleoptera, Volume 1: Archostemata‑Adephaga. Apollo Books.
- Bousquet, Y. (2012). Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico. ZooKeys.
Note: The information presented reflects current taxonomic and ecological knowledge from recognized entomological sources.