Aplasta ononaria
In 3 days ~10% in a week ~30%
Aplasta is a monotypic genus of moth in the family Geometridae erected by Jacob Hübner in 1823. Its only species, Aplasta ononaria, the rest harrow, was first described by Johann Kaspar Füssli in 1783. It is found in southern Europe to Anatolia and from England to the Baltic states.
The wingspan is 26–31 mm. The length of the forewings 13–14 mm. The moth flies from June to September depending on the location. The larvae feed on Ononis. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Rest Harrow sighting in Cévennes National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 896th most-seen of the 996 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.
July
In that month about 10% of wildlife watchers report a Rest Harrow in Cévennes National Park on a given day, against under 5% in August to June, the lowest months. That is one of Cévennes National Park's driest months, with about 35 mm of rain against 260 mm in October.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Rest Harrow 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.
Only Cévennes National Park, in our data
Cévennes National Park is the only park on Wallace's Line with enough records to rate Rest Harrow sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Geometridae
The closest relatives of the Rest Harrow that you can see in Cévennes National Park (family Geometridae, Geometer Moths) are Willow Beauty (about 20%), Portland Ribbon Wave (about 10%) and Chimney-Sweeper (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rest Harrow is recorded against all the insects logged in Cévennes National Park (9 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.
