Charanyca trigrammica
In 3 days ~20% in a week ~40%
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 →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 4 | Wadden Sea National Park | 🇩🇪 Germany | |
| 5 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom | |
| 2 | Birmingham | 🇬🇧 United Kingdom | |
| 3 | Liverpool | 🇬🇧 United Kingdom | |
| 4 | Copenhagen | 🇩🇰 Denmark | |
| 5 | Hamburg | 🇩🇪 Germany | |
| 6 | Berlin | 🇩🇪 Germany | |
| 7 | Prague | 🇨🇿 Czechia | |
| 8 | Vienna | 🇦🇹 Austria |
With luck
About 10% of wildlife watchers report a Treble Lines sighting in Birmingham on a given day, based on 22 verified sightings from GBIF citizen-science data. It is the 309th most-seen of the 811 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.
May
In that month about 20% of wildlife watchers report a Treble Lines in Birmingham on a given day, against under 5% in July to April, the lowest months.
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.
Among the best
Of the 8 cities where we can rate Treble Lines sightings, Birmingham ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in London (United Kingdom, about 10%).
Same family: Noctuidae
The closest relatives of the Treble Lines that you can see in Birmingham (family Noctuidae, Cutworm Moths and Allies) are Large Yellow Underwing (about 20%), Silver Υ (about 20%) and Knot Grass Moth (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Treble Lines is recorded against all the insects logged in Birmingham (22 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.
