Common Roller vs Monarch

Ancylis badiana compared with Danaus plexippus

Key Differences

• Common Roller is Least Concern while Monarch is Not Evaluated.

Taxonomic Classification

Rank	Common Roller	Monarch
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order same	Lepidoptera (Butterflies & Moths)	Lepidoptera (Butterflies & Moths)
Family	Tortricidae	Nymphalidae (Brush-footed Butterflies)
Genus	Ancylis	Danaus (Milkweed Butterflies)
Species	Ancylis badiana	Danaus plexippus

Evolutionary Relationship

Common Roller and Monarch share a common ancestor at the Order level: Lepidoptera. (Butterflies & Moths)

Conservation Status

Common Roller

LC — Least Concern

Monarch

NE — Not Evaluated

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common Roller	Monarch
Diet	—	Herbivore
Average Lifespan	—	1 years
Average Length	—	5 cm
Average Weight	—	0 g

Habitat & Geographic Range

Common Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Monarch

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Widely distributed across Asia (Taiwan), Europe (8 countries), North America (Canada, United States), and South America (Colombia).

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.

Monarch

One of the world's most remarkable migratory insects, monarch butterflies undertake multigenerational round-trip migrations of up to 4,800 km between breeding grounds in northern North America and overwintering sites in Mexican mountain forests. Brilliant orange and black wings warn predators of toxicity derived from milkweed plants consumed as caterpillars. Endangered, with overwintering populations having declined by over 80% since the 1990s due to milkweed habitat loss, pesticides, and climate change.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden