Cerambyx welensii
In 3 days ~40% in a week ~70%
Cerambyx welensii is a species of beetle in the family Cerambycidae (longhorn beetles). This species demonstrates sexual dimorphism, characterized by physical and behavioral differences between males and females, due to their varying body and antenna sizes.
Cerambyx welensii can reach a length of 25–58 millimetres (0.98–2.28 in). These beetles have an elongated body. Antennae of males extend beyond the apex of the elytra by last three antennal segments. The basic color is brownish, with clearer apex of the elytra. Elytra are entirely covered by a thick, white to yellowish setae and have rounded apex. The pronotum shows a thorny tubercle on its sides. This species is rather similar to Cerambyx carinatus... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Cerambyx welensii sighting in Naples on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 24th most-seen of the 73 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
June
In that month about 30% of wildlife watchers report a Cerambyx welensii in Naples on a given day, against under 5% in July to March, the lowest months. That is one of Naples's driest months, with about 35 mm of rain against 120 mm in November.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Cerambyx welensii 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.
Yes
Of the 2 cities where we can rate Cerambyx welensii sightings, Naples has the highest daily chance: about 10%. Next come Rome (Italy, about 10%).
GBIF citizen-science records
It is estimated from how often the Cerambyx welensii is recorded against all the insects logged in Naples (9 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.
