Diplolepis rosae
In 3 days ~30% in a week ~50%
Diplolepis rosae is a gall wasp which causes a gall known as the rose bedeguar gall, robin's pincushion, mossy rose gall, or simply moss gall. The gall develops as a chemically induced distortion of an unopened leaf axillary or terminal bud, mostly on field rose (Rosa arvensis) or dog rose (Rosa canina) shrubs. The female wasp lays up to 60 eggs within each leaf bud using her ovipositor. The grubs develop within the gall, and the wasps emerge in spring; the wasp is parthenogenetic with fewer than one percent being males.
A similar gall is caused by Diplolepis mayri, but this is much less common. Being so prominent and interesting in appearance, this gall has more folklore attached to it than most. The term 'Bedeguar, Bedegar or Bedequar' comes from a French word, bédégar, and is ultimately from the Persian, bād-āwar, meaning 'wind-brought'. Robin in Robin's pincushion refers to the woodland sprite of English folklore, Robin Goodfellow.
The female is about 4 mm (0.16 in) long. Parts of the abdomen and legs are yellow-red, while the rest of the body is black. The male is black and lacks the hypopygium structure which clearly identifies the species... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Aigüestortes National Park | 🇪🇸 Spain | |
| 2 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 3 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 4 | Ordesa y Monte Perdido National Park | 🇪🇸 Spain | |
| 5 | Ecrins National Park | 🇫🇷 France | |
| 6 | Picos de Europa National Park | 🇪🇸 Spain | |
| 7 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 8 | Redwood National Park | 🇺🇸 United States | |
| 9 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 10 | Cévennes National Park | 🇫🇷 France | |
| 11 | Triglav National Park | 🇸🇮 Slovenia | |
| 12 | Mercantour National Park | 🇫🇷 France | |
| 13 | Pyrénées National Park | 🇫🇷 France | |
| 14 | Wadden Sea National Park | 🇩🇪 Germany | |
| 15 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 16 | Bavarian Forest National Park | 🇩🇪 Germany |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom | |
| 2 | Prague | 🇨🇿 Czechia | |
| 3 | Birmingham | 🇬🇧 United Kingdom | |
| 4 | Copenhagen | 🇩🇰 Denmark | |
| 5 | Berlin | 🇩🇪 Germany | |
| 6 | Salt Lake City | 🇺🇸 United States | |
| 7 | Liverpool | 🇬🇧 United Kingdom | |
| 8 | Vienna | 🇦🇹 Austria | |
| 9 | Cologne | 🇩🇪 Germany | |
| 10 | Sofia | 🇧🇬 Bulgaria |
With luck
About 10% of wildlife watchers report a Mossy Rose Gall Wasp sighting in Liverpool on a given day, based on 28 verified sightings from GBIF citizen-science data. It is the 223rd most-seen of the 632 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.
August and November
In those months about 20% of wildlife watchers report a Mossy Rose Gall Wasp in Liverpool on a given day, against under 5% in May–June and December–January, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Mossy Rose Gall Wasp 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 34 cities where we can rate Mossy Rose Gall Wasp sightings, Liverpool ranks 7th at about 10%, level with the leaders once rounded. The best odds are in London (United Kingdom, about 10%), Prague (Czechia, about 10%) and Birmingham (United Kingdom, about 10%).
Same family: Cynipidae
The closest relatives of the Mossy Rose Gall Wasp that you can see in Liverpool (family Cynipidae, Gall Wasps) are Oak Marble Gall Wasp (about 30%), Common Spangle Gall Wasp (about 20%) and Cola Nut Gall Wasp (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mossy Rose Gall Wasp is recorded against all the insects logged in Liverpool (28 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.
