Clay-Coloured Weevil vs Hammond's Oryzomys

Otiorhynchus singularis compared with Mindomys hammondi

Key Differences

• Clay-Coloured Weevil is Least Concern while Hammond's Oryzomys is Endangered.

Taxonomic Classification

Rank	Clay-Coloured Weevil	Hammond's Oryzomys
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Coleoptera (Beetles)	Rodentia (Rodents)
Family	Curculionidae	Cricetidae
Genus	Otiorhynchus	Mindomys
Species	Otiorhynchus singularis	Mindomys hammondi

Evolutionary Relationship

Clay-Coloured Weevil and Hammond's Oryzomys share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Clay-Coloured Weevil

LC — Least Concern

Hammond's Oryzomys

EN — Endangered

Physical Characteristics

Attribute	Clay-Coloured Weevil	Hammond's Oryzomys
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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).

Hammond's Oryzomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

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.