Phyllopertha horticola
In 3 days ~20% in a week ~40%
Phyllopertha horticola, the garden chafer or garden foliage beetle, is a beetle from the family Scarabaeidae. Phyllopertha horticola was described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae. Phyllopertha horticola var. ustulatipennis A. Villa & G. B. Villa, 1833
This rather common species is widely widespread in Europe and in Asia, east to Siberia and Mongolia. In the north of Europe their distribution reaches the middle Fennoscandia and includes the British Isles, in southern Europe it mainly occurs in the mountains. It is the only European representative of the genus Phyllopertha.
These beetles inhabit bushes, hedgerows, woodland edges, meadows and fields, from the lowlands to mountainous areas. They also live in parks and gardens, hence the common name of garden chafer. Phyllopertha horticola is approximately 8.5–11 millimetres (0.33–0.43 in) in size. Unlike Mimela of the same family, these beetles have a non-ovoid body. They have chestnut-brown wing casings which are covered with a long upright pubescence. On each elytron run six longitudinal bands of small dots. Head and thorax are finely... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 2 | Hohe Tauern National Park | 🇦🇹 Austria | |
| 3 | Vanoise National Park | 🇫🇷 France | |
| 4 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 5 | Białowieża National Park | 🇵🇱 Poland | |
| 6 | Triglav National Park | 🇸🇮 Slovenia | |
| 7 | Aigüestortes National Park | 🇪🇸 Spain | |
| 8 | Pyrénées National Park | 🇫🇷 France | |
| 9 | Ecrins National Park | 🇫🇷 France | |
| 10 | Wadden Sea National Park | 🇩🇪 Germany | |
| 11 | Cévennes National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Amsterdam | 🇳🇱 Netherlands | |
| 2 | Warsaw | 🇵🇱 Poland | |
| 3 | Hamburg | 🇩🇪 Germany | |
| 4 | Kyiv | 🇺🇦 Ukraine | |
| 5 | Liverpool | 🇬🇧 United Kingdom | |
| 6 | Novosibirsk | 🇷🇺 Russia | |
| 7 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 8 | Birmingham | 🇬🇧 United Kingdom | |
| 9 | Copenhagen | 🇩🇰 Denmark | |
| 10 | Essen | 🇩🇪 Germany |
With luck
About 10% of wildlife watchers report a Garden Chafer sighting in Rotterdam [The Hague] on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 107th most-seen of the 355 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May
In that month about 20% of wildlife watchers report a Garden Chafer in Rotterdam [The Hague] on a given day, against under 5% in July to April, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Garden Chafer sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 19 cities where we can rate Garden Chafer sightings, Rotterdam [The Hague] ranks 7th at about 10%, level with the leaders once rounded. The best odds are in Amsterdam (Netherlands, about 10%), Warsaw (Poland, about 10%) and Hamburg (Germany, about 10%).
Same family: Scarabaeidae
The closest relatives of the Garden Chafer that you can see in Rotterdam [The Hague] (family Scarabaeidae, Scarabs) are Brown Chafer (about 10%), Mimela junii (about 10%) and Valgus hemipterus (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Garden Chafer is recorded against all the insects logged in Rotterdam [The Hague] (17 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.
