Auchmis detersa
In 3 days ~30% in a week ~50%
Auchmis detersa is a moth of the family Noctuidae first described by Eugenius Johann Christoph Esper in 1791. It is found from north-western Africa through southern and central Europe to Anatolia, Iran, Afghanistan and through Siberia to Lake Baikal.
The wingspan is 40–51 mm. Adults are on wing from June to September. The young larvae feed on Berberis vulgaris. The larvae overwinter and pupate in May of the following year. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 2 | Ecrins National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report an Auchmis detersa sighting in Ecrins National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 149th most-seen of the 251 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report an Auchmis detersa in Ecrins National Park on a given day, against under 5% in September to June, the lowest months. That is one of Ecrins National Park's driest months, with about 50 mm of rain against 160 mm in December.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Auchmis detersa sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Among the best
Of the 2 parks where we can rate Auchmis detersa sightings, Ecrins National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Sierra Nevada National Park (Spain, about 10%).
Same family: Noctuidae
The closest relatives of the Auchmis detersa that you can see in Ecrins National Park (family Noctuidae, Cutworm Moths and Allies) are Brown-Line Bright-Eye (about 10%), Broom Moth (about 10%) and Cotton Bollworm Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Auchmis detersa is recorded against all the insects logged in Ecrins National Park (10 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.
