Cassida nebulosa
In 3 days ~10% in a week ~30%
Cassida nebulosa is a tortoise beetle, a species of leaf beetle (family Chrysomelidae), belonging to the subfamily Cassidinae. It feeds on several plants of the family Chenopodiaceae; particularly on beet Beta vulgaris, on Chenopodium album, on C. glaucum and on Atriplex hortensis.
It is widely distributed in most of Europe, Russia, East Asia including China, Korea and Japan. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Pyrénées National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Cassida nebulosa sighting in Cévennes National Park on a given day, based on 5 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.
May and June
In those months about 10% of wildlife watchers report a Cassida nebulosa in Cévennes National Park on a given day, against under 5% in July to April, the lowest months.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Cassida nebulosa sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
2nd of 3
Of the 3 parks where we can rate Cassida nebulosa sightings, Cévennes National Park ranks 2nd at under 5%. The best odds are in Fertő-Hanság National Park (Hungary, about 10%).
GBIF citizen-science records
It is estimated from how often the Cassida nebulosa is recorded against all the insects logged in Cévennes National Park (5 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.
