Urocerus albicornis
In 3 days ~10% in a week ~30%
Urocerus albicornis (white-horned horntail) is a species of horntail native to North America. This species has occasionally been introduced into Europe and Japan. It lives near conifer trees. It is black, with whiteish antennae, spots on either side of the head, and two bands on each leg. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 2 | Acadia National Park | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a White-Horned Horntail sighting in Great Smoky Mountains National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 513th most-seen of the 822 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 White-Horned Horntail in Great Smoky Mountains 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 White-Horned Horntail sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate White-Horned Horntail sightings, Great Smoky Mountains National Park has the highest daily chance: under 5%. Next come Acadia National Park (United States, under 5%).
Same order: Hymenoptera
The closest relatives of the White-Horned Horntail that you can see in Great Smoky Mountains National Park (order Hymenoptera, Ants, Bees, Wasps, and Sawflies) are Common Eastern Bumble Bee (about 40%), Eastern Carpenter Bee (about 30%) and European Hornet (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the White-Horned Horntail is recorded against all the insects logged in Great Smoky Mountains National Park (8 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.
