#3313 · 🪲 beetles

Knotweed Leaf Beetle

🇳🇱 Duizendknoophaantje ·Gastrophysa polygoni

🪲 Beetles 📍 in the Netherlands

10 photos from iNaturalist (Creative Commons) · credits & licences

1. © Nikolai Vladimirov · CC BY-NC 4.0
2. © katunchik · CC BY 4.0
3. © Eric Knopf · CC BY-NC 4.0
4. © Barry Walter · CC BY 4.0
5. 6702 PB Wageningen, Netherlands:© Pádraic Flood · CC BY-NC-SA 4.0
6. Kootwijk, Netherlands:© Remco Hofland · CC BY-NC 4.0
7. 1795 De Cocksdorp, Nederland:© Rob Westerduijn · CC BY-NC 4.0
8. Laren, Nederland:© Steven Schulting · CC BY-NC 4.0
9. Leidschendam, Nederland:© Rob Westerduijn · CC BY-NC 4.0
10. Best, N620/Boslaan, 5681 BG Best, Nederland:© mumsymaria · CC BY-NC 4.0

what is it?

Gastrophysa polygoni is a species of leaf beetle in the subfamily Chrysomelinae. It was described by Carl Linnaeus in 1758. The species can be up to 5mm long and is green-blue in colour. The thorax is orange and the wing cases are a metallic green, and the beetle can be seen in spring and summer.

base stats

NL sightings 64iNaturalist, research grade
worldwide 4,234iNaturalist observations

Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).