Megarhyssa atrata
In 3 days ~10%
Megarhyssa atrata, also known as the black giant ichneumonid wasp, is a species of large ichneumon wasp. It is known from North America, where it is found from Quebec, Michigan, Ohio, Connecticut, and North and South Carolina to Florida.
Adults are on wing from May to July. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Montreal | 🇨🇦 Canada | |
| 2 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 3 | Toronto | 🇨🇦 Canada | |
| 4 | Chicago | 🇺🇸 United States | |
| 5 | Washington | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Black Giant Ichneumonid Wasp sighting in Chicago on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 751st most-seen of the 978 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Black Giant Ichneumonid Wasp in Chicago on a given day, so our monthly data shows no clear season.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Black Giant Ichneumonid Wasp sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 5 cities where we can rate Black Giant Ichneumonid Wasp sightings, Chicago ranks 4th at under 5%, level with the leaders once rounded. The best odds are in Montreal (Canada, under 5%), Minneapolis [Saint Paul] (United States, under 5%) and Toronto (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Black Giant Ichneumonid Wasp is recorded against all the insects logged in Chicago (7 verified sightings), 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.
