Bacillus rossius
In 3 days ~20% in a week ~30%
The European stick insect (Bacillus rossius) also called the European stick bug, European walking stick, or Mediterranean stick insect, is a species of stick insect, common in southern Europe. The species is endemic to the northwestern Mediterranean, especially Italy, Spain, Southern France, and the Balkans.
Adults have a slim body, with short antennae and long, thin legs. Colors vary from brown to green, sometimes with a pinkish tinge on its head, legs and sides. This species can eat bramble leaves, ivy, and privet. B. rossius can be found from June to mid December and the eggs look like seeds. Females are larger than the male, with a bigger abdomen. An adult can be 10 cm (4 inches) in length.
The nymphs hatch out from their seed-like eggs 8 weeks to 2 months after being laid by a female. Like the adult, the nymphs sway as in a breeze to avoid predators. B. rossius lives up to a year. They are nocturnal and may stay still for hours and usually feed at night. They shed the exoskeleton a few times in their life.
The predators include birds, frogs, lizards, rodents and spiders. Bacillus atticus atticus, the endemic... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Barcelona | 🇪🇸 Spain |
No species of the same family or order lives in Barcelona, so these are its closest relatives here: other insects.
With luck
About 10% of wildlife watchers report a Mediterranean Stick Insect sighting in Barcelona on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 198th most-seen of the 381 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
April–May, July and September–December
In those months about 10% of wildlife watchers report a Mediterranean Stick Insect in Barcelona on a given day, against under 5% in January–March, June and August, the lowest months.
Only Barcelona, in our data
Barcelona is the only city on Wallace's Line with enough records to rate Mediterranean Stick Insect sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Mediterranean Stick Insect is recorded against all the insects logged in Barcelona (13 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.
