Cimbex americana
In 3 days ~30% in a week ~50%
Cimbex americanus, the elm sawfly, is a species of sawfly in the family Cimbicidae. This is a very large species of Hymenoptera, with adults measuring 3 cm and larvae reaching 5 cm long. If captured, adults may buzz and use their powerful spiny legs defensively. However, like other sawflies, this species does not possess a sting. The wasp Opheltes glaucopterus is a parasite of the prepupae stage of this sawfly. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kenai Fjords National Park | 🇺🇸 United States | |
| 2 | Cape Breton Highlands National Park | 🇨🇦 Canada | |
| 3 | Denali National Park | 🇺🇸 United States | |
| 4 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 5 | Shenandoah National Park | 🇺🇸 United States | |
| 6 | Acadia National Park | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Cimbex americana sighting in Denali National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 32nd most-seen of the 36 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
In that month about 20% of wildlife watchers report a Cimbex americana in Denali National Park on a given day, against under 5% in March–June and September–October, the lowest months. That is one of Denali National Park's wettest months, with about 190 mm of rain against 45 mm in April. November to February have too few records to rate.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Cimbex americana sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 6
Of the 6 parks where we can rate Cimbex americana sightings, Denali National Park ranks 3rd at about 10%. The best odds are in Kenai Fjords National Park (United States, about 20%) and Cape Breton Highlands National Park (Canada, about 10%).
GBIF citizen-science records
It is estimated from how often the Cimbex americana is recorded against all the insects logged in Denali National Park (5 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.
