Holcostethus strictus
In 3 days ~20% in a week ~40%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 2 | Vanoise National Park | 🇫🇷 France | |
| 3 | Mercantour National Park | 🇫🇷 France | |
| 4 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 5 | Ecrins National Park | 🇫🇷 France | |
| 6 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 7 | Cévennes National Park | 🇫🇷 France | |
| 8 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 9 | Pyrénées National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Vernal Shield Bug sighting in Istanbul on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 118th most-seen of the 266 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
April
In that month about 20% of wildlife watchers report a Vernal Shield Bug in Istanbul on a given day, against under 5% in June to February, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Vernal Shield Bug sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 25 cities where we can rate Vernal Shield Bug sightings, Istanbul ranks 4th at about 10%, level with the leaders once rounded. The best odds are in Bucharest (Romania, about 10%), Lyon (France, about 10%) and Vienna (Austria, about 10%).
Same family: Pentatomidae
The closest relatives of the Vernal Shield Bug that you can see in Istanbul (family Pentatomidae, Stink Bugs) are European Striped Shield Bug (about 20%), Brown Marmorated Stink Bug (about 20%) and Mottled Stink Bug (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Vernal Shield Bug is recorded against all the insects logged in Istanbul (12 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.
