Diplolepis spinosa
In 3 days ~40% in a week ~70%
Diplolepis spinosa, also known as the many-spined twig gall wasp, is a species of cynipid wasp that induces galls on wild roses in North America. D. spinosa-induced galls are said to be "one of the most conspicuous" found in the grasslands of the continent. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Riding Mountain National Park | 🇨🇦 Canada | |
| 2 | Elk Island National Park | 🇨🇦 Canada | |
| 3 | Acadia National Park | 🇺🇸 United States | |
| 4 | Rocky Mountain National Park | 🇺🇸 United States |
Possible
About 20% of wildlife watchers report a Diplolepis spinosa sighting in Riding Mountain National Park on a given day, based on 29 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 25th most-seen of the 104 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
February
In that month about 50% of wildlife watchers report a Diplolepis spinosa in Riding Mountain National Park on a given day, against under 5% in January, March–May and October–November, the lowest months. That is one of Riding Mountain National Park's driest months, with about 20 mm of rain against 100 mm in June.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Diplolepis spinosa sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 4 parks where we can rate Diplolepis spinosa sightings, Riding Mountain National Park has the highest daily chance: about 20%. Next come Elk Island National Park (Canada, about 10%) and Acadia National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Diplolepis spinosa is recorded against all the insects logged in Riding Mountain National Park (29 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.
