Photo: Gideon Pisanty / CC BY 3.0
Lasioglossum malachurum
Bronze Furrow Bee
A small, primitively eusocial sweat bee (6–8 mm) with a metallic green to brassy head and thorax and a black abdomen with narrow white hair bands. It nests in large aggregations in bare, compacted soil, often forming colonies of hundreds of nests in paths, field margins, and lawns. Queens dominate workers and produce two broods per year. In Switzerland it is one of the most common Lasioglossum species in agricultural landscapes of the lowlands. Swiss Red List: Least Concern (LC).
Species Facts
- Size
- 6–8 mm
- Flight Period
- April to September
- Nesting
- Ground
- Specialization
- Generalist
- Abundance
- Very common
- Family
- Halictidae
External Sources
This data has been cross-referenced with national sources:
Data Source & Copyright
| Category | Source / Author | License |
|---|---|---|
| Photo | Gideon Pisanty | 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 (lasioglossum)
