Photo: Peter Gabler / CC0
Colletes fodiens
Hairy-saddled Colletes
A medium-sized plasterer bee (9-11 mm) with dense brownish hairs on the thorax and unusually broad, felt-like white hair bands on the abdomen. It is oligolectic on Asteraceae, particularly tansy (Tanacetum vulgare) and yarrow (Achillea millefolium). It nests in aggregations in sandy soils in warm, dry locations. In Switzerland it is found in ruderal areas, sand pits, and dry meadows in the lowlands and valleys. Swiss Red List: Endangered (EN).
Species Facts
- Size
- 9-11 mm
- Flight Period
- July to September
- Nesting
- Ground
- Specialization
- Asteraceae
- Abundance
- Uncommon
- Family
- Colletidae
External Sources
This data has been cross-referenced with national sources:
Data Source & Copyright
| Category | Source / Author | License |
|---|---|---|
| Photo | Peter Gabler | CC0 |
| Taxonomy & Distribution | InfoFauna Switzerland | Public data |
| Global Distribution | GBIF | CC BY 4.0 |
Data Quality
High Quality Last audit: 2026-05-22 Red List: EN
Completeness: 100%
✓Photo exists✓Traits consistent✓Description quality✓Red List referenced✓Attribution verified
Confidence: 67%
IdentifiabilityMediumImage confidenceMediumImage qualityHighTrait coherenceHigh
