Treble Lines

Treble Lines

Charanyca trigrammica

Daily sighting probability ~10% · With luck
at Cévennes National Park

In 3 days ~40% in a week ~60%

112 Verified sightings at Cévennes National Park From 2019 to 2026
183 In all 5 parks
May Best month
☀️🌙 Day & Night When it's spotted

About the Treble Lines

The Treble Lines (Charanyca trigrammica) is a moth of the family Noctuidae. It is found virtually throughout Europe.In addition, there are occurrences in Asia minor and the Caucasus.In the mountains it rises to altitudes of 1000 metres.

The wingspan is 35–40 millimetres (1.4–1.6 in) Forewing whitish ochreous finely dusted with olive brown, sometimes with a slight ochraceous or pinkish tinge, and with a darker shade just before termen: crossed by 3 brown lines, of which the inner is somewhat oblique outwards, and the outer inwards: the median generally a little thicker, sometimes followed by a distinct dark shade; hindwing pale to dark grey, varying according to the forewing; in the form evidens Thnbg, the forewing is rufous ochreous or yellow ochreous, the hindwing darker; - bilinea Hbn. a rare form, has the space between inner and median lines dark, the rest of the wing being reddish grey; — in perrufa ab. nov. [Warren] the whole wing is rufous, with the median shade absent or obscure; — obscura Tutt is dull olive fuscous with the median shade hardly visible, the hindwing also dark fuscous; while pallidalinea Tutt has the inner line obsolete, the other two pale... Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Snowdonia National Park 🇬🇧 United Kingdom
~20%
2 Cévennes National Park 🇫🇷 France
~10%
3 Bavarian Forest National Park 🇩🇪 Germany
~10%
4 Wadden Sea National Park 🇩🇪 Germany
~10%
5 Pyrénées National Park 🇫🇷 France
<5%

Cities Where Found

# City Country Daily sighting probability
1 London 🇬🇧 United Kingdom
~10%
2 Birmingham 🇬🇧 United Kingdom
~10%
3 Liverpool 🇬🇧 United Kingdom
~10%
4 Copenhagen 🇩🇰 Denmark
~10%
5 Hamburg 🇩🇪 Germany
<5%
6 Berlin 🇩🇪 Germany
<5%
7 Prague 🇨🇿 Czechia
<5%
8 Vienna 🇦🇹 Austria
<5%

Before you go

What are the chances of seeing a Treble Lines in Cévennes National Park?

With luck

About 10% of wildlife watchers report a Treble Lines sighting in Cévennes National Park on a given day, based on 112 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 127th most-seen of the 996 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 60%, if each day is a fresh chance.

When is the best time to see a Treble Lines in Cévennes National Park?

May

In that month about 30% of wildlife watchers report a Treble Lines in Cévennes National Park on a given day, against under 5% in July to March, the lowest months.

What time of day is best to see a Treble Lines?

Between 6 and 9 am

Across all the parks we cover, that three-hour window holds the most Treble Lines sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.

Is Cévennes National Park the best place to see a Treble Lines?

2nd of 5

Of the 5 parks where we can rate Treble Lines sightings, Cévennes National Park ranks 2nd at about 10%. The best odds are in Snowdonia National Park (United Kingdom, about 20%).

Where does the Treble Lines sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Treble Lines is recorded against all the insects logged in Cévennes National Park (112 verified sightings from 2019 to 2026), 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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