Thalpophila matura
In 3 days ~10% in a week ~30%
The straw underwing (Thalpophila matura) is a species of moth in the family Noctuidae. The species was first described by Johann Siegfried Hufnagel in 1766. It is found from North Africa west through South Europe and Central Europe. In the north it is in parts of Ireland, Scotland, Sweden, Norway, Finland and Estonia. Further east the range stretches from southern Russia and Asia minor to the Caucasus.
This species has a wingspan of 38–46 mm. The forewings are dark brown, often variegated with paler and reddish patches and usually with prominent whitish postterminal fascia. The hindwings are very distinctive, pale straw coloured with a broad blackish band at the margin.
Wingspan 38–46 mm. Forewing grey brown with darker dusting and suffusion; veins towards termen pale grey; a slight rufous tinge longitudinally along both folds, more conspicuous at the outer edge of reniform stigma; inner and outer lines black, conversely pale edged; the submarginal obscurely pale, indented on each fold, and preceded by a dark shade; the three stigmata black edged, their centres more or less tinged with rufous, the orbicular and reniform with an obscure pale... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France | |
| 2 | Wadden Sea National Park | 🇩🇪 Germany | |
| 3 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom | |
| 2 | Birmingham | 🇬🇧 United Kingdom | |
| 3 | Liverpool | 🇬🇧 United Kingdom | |
| 4 | Manchester | 🇬🇧 United Kingdom | |
| 5 | Vienna | 🇦🇹 Austria | |
| 6 | Budapest | 🇭🇺 Hungary | |
| 7 | Kyiv | 🇺🇦 Ukraine | |
| 8 | Lyon | 🇫🇷 France | |
| 9 | Berlin | 🇩🇪 Germany | |
| 10 | Paris | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Straw Underwing sighting in Prague on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 288th most-seen of the 724 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Straw Underwing in Prague on a given day, against under 5% in September to July, the lowest months. That is one of Prague's wettest months, with about 80 mm of rain against 30 mm in February.
Between 11 pm and 2 am
Across all the parks we cover, that three-hour window holds the most Straw Underwing sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
11th of 11
Of the 11 cities where we can rate Straw Underwing sightings, Prague ranks 11th at under 5%. The best odds are in London (United Kingdom, about 10%), Birmingham (United Kingdom, about 10%) and Liverpool (United Kingdom, about 10%).
Same family: Noctuidae
The closest relatives of the Straw Underwing that you can see in Prague (family Noctuidae, Cutworm Moths and Allies) are Silver Υ (about 10%), Large Yellow Underwing (about 10%) and Knot Grass Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Straw Underwing is recorded against all the insects logged in Prague (18 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.
