F-Winged Barklouse

F-Winged Barklouse

Graphopsocus cruciatus

Daily sighting probability ~10% · With luck
at Berlin

In 3 days ~20% in a week ~40%

53 Verified sightings at Berlin
35 In all 4 parks From 2019 to 2026
November Best month
☀️ Diurnal When it's spotted

About the F-Winged Barklouse

Graphopsocus cruciatus is a species of Psocoptera from Stenopsocidae family. The species was introduced to the North America from Asia or Europe in 1930. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Shenandoah National Park 🇺🇸 United States
~10%
2 Bavarian Forest National Park 🇩🇪 Germany
~10%
3 Cévennes National Park 🇫🇷 France
<5%
4 Pyrénées National Park 🇫🇷 France
<5%

Cities Where Found

# City Country Daily sighting probability
1 Berlin 🇩🇪 Germany
~10%
2 London 🇬🇧 United Kingdom
~10%
3 Bucharest 🇷🇴 Romania
~10%
4 Vancouver 🇨🇦 Canada
~10%
5 Boston 🇺🇸 United States
~10%
6 Seattle 🇺🇸 United States
~10%
7 Washington 🇺🇸 United States
~10%
8 Tel Aviv 🇮🇱 Israel
~10%
9 Kyiv 🇺🇦 Ukraine
~10%
10 Budapest 🇭🇺 Hungary
~10%

Before you go

What are the chances of seeing a F-Winged Barklouse in Berlin?

With luck

About 10% of wildlife watchers report a F-Winged Barklouse sighting in Berlin on a given day, based on 53 verified sightings from GBIF citizen-science data. It is the 177th most-seen of the 1065 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.

When is the best time to see a F-Winged Barklouse in Berlin?

October to December

In those months about 20% of wildlife watchers report a F-Winged Barklouse in Berlin on a given day, against under 5% in March–April and August–September, the lowest months.

What time of day is best to see a F-Winged Barklouse?

Between 4 and 7 pm

Across all the parks we cover, that three-hour window holds the most F-Winged Barklouse sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Berlin the best place to see a F-Winged Barklouse?

Yes

Of the 32 cities where we can rate F-Winged Barklouse sightings, Berlin has the highest daily chance: about 10%. Next come London (United Kingdom, about 10%) and Bucharest (Romania, about 10%).

Where does the F-Winged Barklouse sighting chance come from?

GBIF citizen-science records

It is estimated from how often the F-Winged Barklouse is recorded against all the insects logged in Berlin (53 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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