Gastrophysa polygoni
Silhouette: Birgit Lang · PhyloPic
In 3 days ~40% in a week ~70%
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. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wadden Sea National Park | 🇩🇪 Germany |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bishkek | 🇰🇬 Kyrgyzstan | |
| 2 | Astana | 🇰🇿 Kazakhstan | |
| 3 | Kyiv | 🇺🇦 Ukraine | |
| 4 | Kharkiv | 🇺🇦 Ukraine | |
| 5 | Warsaw | 🇵🇱 Poland | |
| 6 | Bucharest | 🇷🇴 Romania | |
| 7 | Nizhny Novgorod | 🇷🇺 Russia | |
| 8 | Novosibirsk | 🇷🇺 Russia | |
| 9 | Kazan | 🇷🇺 Russia | |
| 10 | Almaty | 🇰🇿 Kazakhstan |
With luck
About 10% of wildlife watchers report a Knotweed Leaf Beetle sighting in Astana on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 15th most-seen of the 43 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
July
In that month about 30% of wildlife watchers report a Knotweed Leaf Beetle in Astana on a given day, against under 5% in February–May and September–November, the lowest months. That is one of Astana's wettest months, with about 55 mm of rain against 20 mm in January.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Knotweed Leaf Beetle sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 21
Of the 21 cities where we can rate Knotweed Leaf Beetle sightings, Astana ranks 2nd at about 10%. The best odds are in Bishkek (Kyrgyzstan, about 30%).
Same family: Chrysomelidae
The closest relatives of the Knotweed Leaf Beetle that you can see in Astana (family Chrysomelidae, Leaf Beetles) are Entomoscelis adonidis (about 20%) and Hypocassida subferruginea (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Knotweed Leaf Beetle is recorded against all the insects logged in Astana (11 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
