Cimbex americana
In 3 days ~10% in a week ~30%
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 |
Rare
Under 5% of wildlife watchers report a Cimbex americana sighting in Acadia National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 347th most-seen of the 405 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.
May
In that month about 10% of wildlife watchers report a Cimbex americana in Acadia National Park on a given day, against under 5% in June to April, the lowest months.
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.
6th of 6
Of the 6 parks where we can rate Cimbex americana sightings, Acadia National Park ranks 6th at under 5%. The best odds are in Kenai Fjords National Park (United States, about 20%), Cape Breton Highlands National Park (Canada, about 10%) and Denali National Park (United States, about 10%).
Same order: Hymenoptera
The closest relatives of the Cimbex americana that you can see in Acadia National Park (order Hymenoptera, Ants, Bees, Wasps, and Sawflies) are Tricolored Bumble Bee (about 40%), Common Eastern Bumble Bee (about 30%) and Two-Spotted Bumble Bee (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cimbex americana is recorded against all the insects logged in Acadia 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.
