Photo: Arnstein Staverløkk / CC BY 3.0
Hylaeus pectoralis
Reed Yellow-face Bee
An ecologically distinctive yellow-face bee that nests exclusively in old galls of the Lipara lucens fly on common reed. The body is black with white facial markings. It is a wetland obligate, found only in reed beds and marshlands. In Switzerland it occurs in scattered records around lakes and wetlands where Phragmites reed grows. Swiss Red List: Vulnerable (VU).
Species Facts
- Size
- 6-8 mm
- Flight Period
- May to August
- Nesting
- Cavities
- Specialization
- Generalist
- Abundance
- Rare
- 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)
