Diplolepis polita
In 3 days ~10% in a week ~20%
Diplolepis polita, known generally as the spiny leaf gall wasp, is a species of gall wasp in the family Cynipidae. It was first described by William Harris Ashmead in 1890. This species induces galls on several species of wild roses in North America, including Rosa arkansana and Rosa acicularis. The galls are formed on the leaves in spring and early summer and are spherical with short spikes. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Elk Island National Park | 🇨🇦 Canada | |
| 2 | Kluane National Park | 🇨🇦 Canada | |
| 3 | Isle Royale National Park | 🇺🇸 United States | |
| 4 | Pacific Rim National Park Reserve | 🇨🇦 Canada | |
| 5 | Jasper National Park | 🇨🇦 Canada | |
| 6 | Great Bear Rainforest | 🇨🇦 Canada | |
| 7 | Riding Mountain National Park | 🇨🇦 Canada | |
| 8 | Glacier National Park | 🇺🇸 United States | |
| 9 | Acadia National Park | 🇺🇸 United States | |
| 10 | Banff National Park | 🇨🇦 Canada | |
| 11 | Olympic National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Edmonton | 🇨🇦 Canada | |
| 2 | Calgary | 🇨🇦 Canada | |
| 3 | Seattle | 🇺🇸 United States | |
| 4 | Vancouver | 🇨🇦 Canada | |
| 5 | San Francisco | 🇺🇸 United States | |
| 6 | Denver | 🇺🇸 United States | |
| 7 | Portland | 🇺🇸 United States | |
| 8 | Chicago | 🇺🇸 United States | |
| 9 | Los Angeles | 🇺🇸 United States | |
| 10 | Washington | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Spiny Leaf Gall Wasp sighting in Seattle on a given day, based on 26 verified sightings from GBIF citizen-science data. It is the 165th most-seen of the 428 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
June and July
In those months about 10% of wildlife watchers report a Spiny Leaf Gall Wasp in Seattle on a given day, against under 5% in August to May, the lowest months. Those are among Seattle's driest months, with about 35 mm of rain a month against 190 mm in November.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Spiny Leaf Gall Wasp sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 11
Of the 11 cities where we can rate Spiny Leaf Gall Wasp sightings, Seattle ranks 3rd at under 5%. The best odds are in Edmonton (Canada, about 10%) and Calgary (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Spiny Leaf Gall Wasp is recorded against all the insects logged in Seattle (26 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.
