Platyedra subcinerea
In 3 days ~10% in a week ~20%
Platyedra subcinerea, the mallow groundling or cotton stem moth, is a moth of the family Gelechiidae. It is found in most of Europe. It is an in introduced species in North America, where it has been recorded from New England and California, and has also been introduced to New Zealand. The habitat consists of wet meadows, marshes and gardens.
The wingspan is 14–21 mm. The larvae feed on Parietaria officinalis, Urtica species, Althaea officinalis, Lavatera thuringiaca and Malva sylvestris. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wadden Sea National Park | 🇩🇪 Germany |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Cotton Stem Moth sighting in Wadden Sea National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 536th most-seen of the 818 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
May and June
In those months about 10% of wildlife watchers report a Cotton Stem Moth in Wadden Sea National Park on a given day, against under 5% in July to April, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Cotton Stem Moth 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.
Only Wadden Sea National Park, in our data
Wadden Sea National Park is the only park on Wallace's Line with enough records to rate Cotton Stem Moth sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Cotton Stem Moth is recorded against all the insects logged in Wadden Sea National Park (8 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.
