Bear-clawed Nomad Bee vs Common Roller

Nomada baccata compared with Ancylis badiana

Key Differences

• Bear-clawed Nomad Bee is Critically Endangered while Common Roller is Least Concern.

Taxonomic Classification

Rank	Bear-clawed Nomad Bee	Common Roller
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order	Hymenoptera (Ants, Bees & Wasps)	Lepidoptera (Butterflies & Moths)
Family	Apidae (Bees)	Tortricidae
Genus	Nomada	Ancylis
Species	Nomada baccata	Ancylis badiana

Evolutionary Relationship

Bear-clawed Nomad Bee and Common Roller share a common ancestor at the Class level: Insecta. (Insects)

Conservation Status

Bear-clawed Nomad Bee

CR — Critically Endangered

Common Roller

LC — Least Concern

Physical Characteristics

Attribute	Bear-clawed Nomad Bee	Common Roller
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bear-clawed Nomad Bee

Habitat

Inhabits temperate broadleaf and mixed forests within the Palearctic biogeographic realm.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Bear-clawed Nomad Bee

The Bear-clawed Nomad Bee (Nomada baccata) is a species in the genus Nomada. It is currently classified as Critically Endangered on the IUCN Red List. Inhabits temperate broadleaf and mixed forests within the Palearctic biogeographic realm.

Common Roller

<em>Ancylis badiana</em>, the common roller, is a small moth in the family Tortricidae, order Lepidoptera. It is distributed across northwestern Europe, with documented records from Belgium, Denmark, Norway, and Sweden, typically inhabiting woodland margins, hedgerows, scrubland, and areas where its larval host plants are abundant. The species is assessed as Least Concern on the IUCN Red List. Tortricid moths in the genus Ancylis are commonly known as "rollers" or "leafrollers" because their larvae typically roll or fold leaves of host plants to create sheltered feeding structures. <em>Ancylis badiana</em> larvae feed on the foliage of various herbaceous plants, particularly species in the pea family (Fabaceae). Adults are small moths with intricately patterned wings that provide camouflage against bark and plant material. Adult moths are primarily nocturnal and are attracted to light, while larvae are cryptic within their leaf shelters. Biological traits such as lifespan, body measurements, and detailed diet host range remain poorly documented beyond general family-level characteristics. The species typically completes one to two generations per year in temperate European climates, overwintering as pupae. It is considered a minor component of invertebrate biodiversity in European lowland habitats.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden