Antrocaryon vs Clay-Coloured Weevil

Antrocaryon micraster compared with Otiorhynchus singularis

Key Differences

Antrocaryon is Vulnerable while Clay-Coloured Weevil is Least Concern.

Taxonomic Classification

Rank	Antrocaryon	Clay-Coloured Weevil
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Magnoliopsida (Dicots)	Insecta (Insects)
Order	Sapindales (Sapindales)	Coleoptera (Beetles)
Family	Anacardiaceae	Curculionidae
Genus	Antrocaryon	Otiorhynchus
Species	Antrocaryon micraster	Otiorhynchus singularis

Conservation Status

Antrocaryon

VU — Vulnerable

Clay-Coloured Weevil

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Antrocaryon

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and mangrove forests and coastal wetlands within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Guinea. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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).

Antrocaryon

The Antrocaryon (Antrocaryon micraster) is a species in the genus Antrocaryon. It is currently classified as Vulnerable on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and mangrove forests and coastal wetlands within the Afrotropic biogeographic realm. Populatio.

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.