Horisme vitalbata
In 3 days ~10% in a week ~20%
Horisme vitalbata, the small waved umber, is a moth of the family Geometridae. The species was first described by Michael Denis and Ignaz Schiffermüller in 1775. It occurs in Europe. The wingspan is 30–35 mm. The length of the forewings is 15–17 mm. The moths fly in two generations from May to June and again in August.[1]
The larvae feed on Clematis vitalba. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France | |
| 2 | Pyrénées National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Small Waved Umber sighting in Barcelona on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 304th most-seen of the 381 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.
April and October–December
In those months about 10% of wildlife watchers report a Small Waved Umber in Barcelona on a given day, against under 5% in January–March and May–September, the lowest months.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Small Waved Umber sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Yes
Of the 2 cities where we can rate Small Waved Umber sightings, Barcelona has the highest daily chance: under 5%. Next come London (United Kingdom, under 5%).
Same family: Geometridae
The closest relatives of the Small Waved Umber that you can see in Barcelona (family Geometridae, Geometer Moths) are Vestal (about 20%), Double-Striped Pug (about 10%) and Small Dusty Wave (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Small Waved Umber is recorded against all the insects logged in Barcelona (6 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.
