Colletid bee vs Leschenault's rousette

Hylaeus pictipes compared with Rousettus leschenaultii

Key Differences

• Colletid bee is Extinct while Leschenault's rousette is Near Threatened.

Taxonomic Classification

Rank	Colletid bee	Leschenault's rousette
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Hymenoptera (Ants, Bees & Wasps)	Chiroptera (Bats)
Family	Colletidae	Pteropodidae (Fruit Bats)
Genus	Hylaeus	Rousettus
Species	Hylaeus pictipes	Rousettus leschenaultii

Evolutionary Relationship

Colletid bee and Leschenault's rousette share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Colletid bee

EX — Extinct

Leschenault's rousette

NT — Near Threatened

Physical Characteristics

Attribute	Colletid bee	Leschenault's rousette
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Colletid bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (5 countries) and North America (United States).

Leschenault's rousette

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Taiwan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Colletid bee

<em>Hylaeus pictipes</em>, commonly known as the Colletid bee, is a species belonging to the genus <em>Hylaeus</em> within the family Colletidae, one of the most ancient lineages of bees. This species is classified as Extinct, signifying that no living individuals are known to survive. Historical records indicate its former presence across several European countries, including Belgium, Denmark, Luxembourg, Norway, and Sweden. The species is noted to have been capable of occupying virtually all terrestrial and freshwater habitats, suggesting considerable ecological flexibility during its existence. Colletid bees in this genus are typically solitary, with females provisioning individual nest cells with a mixture of pollen and nectar rather than collectively forming colonies. Specific dietary information for <em>Hylaeus pictipes</em> beyond general nectivory and pollen collection has not been recorded. Biological traits of this species remain poorly documented in the scientific literature. The loss of this species reflects broader declines in native bee diversity across Europe, driven by habitat loss, agricultural intensification, and other anthropogenic pressures.