Herophila tristis
In 3 days ~30% in a week ~50%
Herophila tristis is a species of beetle in the family Cerambycidae, they are also called longhorned beetles. It was described by Carl Linnaeus in 1767, originally under the genus Cerambyx. It is known from Italy, Romania, Austria, Bulgaria, Crete, Croatia, Sardinia, France, Greece, Serbia, Montenegro,Corsica, Sicily, Hungary, Slovenia, Albania, and Turkey. It feeds on Morus alba, Ficus carica, and Robinia pseudoacacia. They live 2–3 years and are 13–26 mm long. Larvae feed under the bark of a range of broad-leaved trees, mostly Ficus carica commonly known as fig trees. As an adult they hide in the day and come out in the dusk. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rome | 🇮🇹 Italy |
With luck
About 10% of wildlife watchers report a Herophila tristis sighting in Rome on a given day, based on 23 verified sightings from GBIF citizen-science data. It is the 55th most-seen of the 289 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.
April and May
In those months about 20% of wildlife watchers report a Herophila tristis in Rome on a given day, against under 5% in July, September and November–February, the lowest months.
Only Rome, in our data
Rome is the only city on Wallace's Line with enough records to rate Herophila tristis sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Cerambycidae
The closest relatives of the Herophila tristis that you can see in Rome (family Cerambycidae, Longhorn Beetles) are Cerambyx welensii (about 10%), Stenopterus ater (about 10%) and Heart Longhorn Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Herophila tristis is recorded against all the insects logged in Rome (23 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.
