Blennogeneris spissipes
In 3 days ~10% in a week ~30%
Blennogeneris spissipes, also known as the snowberry sawfly, is a species of sawfly in the family Tenthredinidae. It is native to North America, where it induces galls on the buds or leaves of Symphoricarpos albus and Symphoricarpos mollis. The species was first described by Ezra Townsend Cresson in 1880. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yosemite National Park | 🇺🇸 United States |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Snowberry Sawfly sighting in Yosemite National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 174th most-seen of the 227 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.
July and September
In those months about 10% of wildlife watchers report a Snowberry Sawfly in Yosemite National Park on a given day, against under 5% in August and October–June, the lowest months. Those are among Yosemite National Park's driest months, with about 25 mm of rain a month against 220 mm in January.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Snowberry Sawfly sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Yosemite National Park, in our data
Yosemite National Park is the only park on Wallace's Line with enough records to rate Snowberry Sawfly sightings: under 5% of wildlife watchers there report one on a given day.
Same order: Hymenoptera
The closest relatives of the Snowberry Sawfly that you can see in Yosemite National Park (order Hymenoptera, Ants, Bees, Wasps, and Sawflies) are Yellow-Faced Bumble Bee (about 20%), Western Black Carpenter Ant (about 10%) and Western Carpenter Bee (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Snowberry Sawfly is recorded against all the insects logged in Yosemite National Park (6 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.
