Sycamore Seed Bug

Sycamore Seed Bug

Belonochilus numenius

Daily sighting probability ~10% · With luck
at Lyon

In 3 days ~20% in a week ~30%

8 Verified sightings at Lyon
July Best month

About the Sycamore Seed Bug

Belonochilus is a genus of seed bugs in the family Lygaeidae. There is one described species in Belonochilus, B. numenius, the sycamore seed bug, making it a monotypic genus. It is native to North America, but is an invasive species in Europe. It primarily feeds on Platanus trees and lays its eggs on fruit, although some overwinter beneath the bark of the trees they feed on. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Valencia 🇪🇸 Spain
~10%
2 Barcelona 🇪🇸 Spain
~10%
3 Madrid 🇪🇸 Spain
~10%
4 Vienna 🇦🇹 Austria
~10%
5 Lyon 🇫🇷 France
~10%
6 Paris 🇫🇷 France
<5%
7 Bucharest 🇷🇴 Romania
<5%
8 Prague 🇨🇿 Czechia
<5%
9 Lisbon 🇵🇹 Portugal
<5%
10 Monterrey 🇲🇽 México
<5%

Before you go

What are the chances of seeing a Sycamore Seed Bug in Lyon?

With luck

About 10% of wildlife watchers report a Sycamore Seed Bug sighting in Lyon on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 266th most-seen of the 411 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.

When is the best time to see a Sycamore Seed Bug in Lyon?

April–July and October

In those months about 10% of wildlife watchers report a Sycamore Seed Bug in Lyon on a given day, against under 5% in August–September and November–March, the lowest months.

Is Lyon the best place to see a Sycamore Seed Bug?

Among the best

Of the 15 cities where we can rate Sycamore Seed Bug sightings, Lyon ranks 5th at about 10%, level with the leaders once rounded. The best odds are in Valencia (Spain, about 10%), Barcelona (Spain, about 10%) and Madrid (Spain, about 10%).

Where does the Sycamore Seed Bug sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Sycamore Seed Bug is recorded against all the insects logged in Lyon (8 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.

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