Chalk Yellow-face Bee vs Common Yellow-face Bee

Hylaeus dilatatus compared with Hylaeus communis

Taxonomic Classification

Rank	Chalk Yellow-face Bee	Common Yellow-face Bee
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Arthropoda (절지동물)	Arthropoda (절지동물)
Class same	Insecta (곤충)	Insecta (곤충)
Order same	Hymenoptera (벌목)	Hymenoptera (벌목)
Family same	Colletidae	Colletidae
Genus same	Hylaeus	Hylaeus
Species	Hylaeus dilatatus	Hylaeus communis

Evolutionary Relationship

Chalk Yellow-face Bee and Common Yellow-face Bee share a common ancestor at the Genus level: Hylaeus.

Conservation Status

Chalk Yellow-face Bee

LC — Least Concern

Common Yellow-face Bee

LC — Least Concern

Physical Characteristics

Attribute	Chalk Yellow-face Bee	Common Yellow-face Bee
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chalk Yellow-face Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Common Yellow-face Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

Chalk Yellow-face Bee

The Chalk Yellow-face Bee (Hylaeus dilatatus) is a species in the genus Hylaeus. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Common Yellow-face Bee

<em>Hylaeus communis</em>, the common yellow-face bee, is a small solitary bee in the family Colletidae. It is widely distributed across much of Europe and western Asia, where it is one of the most frequently encountered members of its genus. The species inhabits a broad range of open and semi-open habitats including gardens, meadows, hedgerows, heathlands, and woodland edges, often nesting in existing cavities such as hollow plant stems, galls, and old beetle burrows. Adults are small, typically 6–8 mm in length, and are characterized by yellow facial markings on an otherwise black body, the pattern being more extensive in males than females. Biological traits such as average lifespan, precise body weight, and detailed population estimates remain poorly documented in the scientific literature. Unlike many bees, <em>Hylaeus</em> species lack specialized pollen-carrying structures; instead, they transport pollen and nectar internally in their crop. Adults visit a wide variety of flowers for food and are considered polylectic generalists. <em>Hylaeus communis</em> is assessed as Least Concern, reflecting its broad distribution and tolerance of diverse habitats, though it may be affected by loss of nesting sites and floral diversity in intensively managed landscapes.

Shared Countries

Both species can be found in 4 countries:

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