Photo: Arnstein Staverløkk / CC BY 3.0
Hylaeus dilatatus
Broad-faced Yellow-face Bee
A small yellow-face bee distinguished by the broadened face of the male, which has extensive white markings. It nests in hollow stems and beetle burrows in dead wood. In Switzerland it occurs in warm, dry habitats such as dry meadows, vineyards, and ruderal areas in the lowlands and inner Alpine valleys. Swiss Red List: Least Concern (LC).
Species Facts
- Size
- 5–7 mm
- Flight Period
- May to August
- Nesting
- Cavities
- Specialization
- Generalist
- Abundance
- Uncommon
- Family
- Colletidae
External Sources
This data has been cross-referenced with national sources:
Data Source & Copyright
| Category | Source / Author | License |
|---|---|---|
| Photo | Arnstein Staverløkk | CC BY 3.0 |
| Taxonomy & Distribution | InfoFauna Switzerland | Public data |
| Global Distribution | GBIF | CC BY 4.0 |
Data Quality
Adequate Last audit: 2026-05-22
Completeness: 100%
✓Photo exists✓Traits consistent✓Description quality✓Red List referenced✓Attribution verified
Confidence: 33%
IdentifiabilityLowImage confidenceLowImage qualityMediumTrait coherenceHigh
Risk flags
Hard to identify
Difficult to identify genus (hylaeus)
