Hawkmoths pollinate Japan's black‑nectar flower
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- University of Tokyo researchers discovered that nocturnal hawkmoths are the primary pollinators of Jasminanthes mucronata, a Japanese plant that produces black nectar.
- The study (published in Ecology, 2026) is the first documented case of a colored‑nectar flower being mainly pollinated by nocturnal insects.
- Researchers conducted 75 hours of direct observations of floral visitors, both day and night, across multiple sites in southern Japan.
- Light‑trapping enabled the capture of a hawkmoth carrying pollen on its proboscis after netting attempts failed.
- Multiple hawkmoth species were identified as pollinators of J. mucronata, highlighting the potential importance of colored nectar in nocturnal pollination systems.
- Future research will use J. mucronata as a model to investigate the adaptive role of black nectar at night.
Why it matters: Ecologists gain a new model for studying nocturnal pollination, while the finding challenges the prevailing focus on daytime pollinators and may redirect future research funding toward night‑time plant‑insect interactions, potentially reshaping conservation strategies for nocturnal pollinators and the plants that depend on them.
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