Acanthus vs Clay-Coloured Weevil

Acanthus ebracteatus compared with Otiorhynchus singularis

Taxonomic Classification

Rank	Acanthus	Clay-Coloured Weevil
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Magnoliopsida (Dicots)	Insecta (Insects)
Order	Lamiales (Lamiales)	Coleoptera (Beetles)
Family	Acanthaceae	Curculionidae
Genus	Acanthus	Otiorhynchus
Species	Acanthus ebracteatus	Otiorhynchus singularis

Conservation Status

Acanthus

LC — Least Concern

Clay-Coloured Weevil

LC — Least Concern

Physical Characteristics

Attribute	Acanthus	Clay-Coloured Weevil
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Acanthus

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Clay-Coloured Weevil

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (32 countries) and North America (Canada, United States).

Acanthus

The Acanthus (Acanthus ebracteatus) is a species in the genus Acanthus. It is currently classified as Least Concern on the IUCN Red List. It typically inhabits diverse terrestrial habitats from tropical forests to temperate regions.

Clay-Coloured Weevil

The Clay-coloured Weevil, Otiorhynchus singularis, is a small flightless beetle in the family Curculionidae native to Europe and widely established as an introduced pest in many parts of North America and other temperate regions. The adult weevil is typically 5–7 mm in length, mottled gray-brown or clay-colored with patches of pale scales that provide camouflage against bark and soil. Like other Otiorhynchus weevils, the Clay-coloured Weevil is parthenogenetic in most introduced populations, consisting entirely of females that reproduce without mating. Adults are nocturnal, feeding on the foliage and bark of a wide range of host plants including strawberries, raspberries, currants, ornamental shrubs, and nursery stock. The larvae develop in soil, feeding on roots and causing significant damage that can girdle and kill established plants. The species is considered a serious horticultural pest in affected regions, causing economic losses in soft fruit production, nurseries, and ornamental plantings. Management typically involves biological control using entomopathogenic nematodes or fungi, as chemical control of soil-dwelling larvae is difficult. The species is well established across temperate Europe and has been accidentally introduced to parts of North America through the horticultural trade.