Greene's Giant Ichneumonid Wasp
Greene's Giant Ichneumonid Wasp

Greene's Giant Ichneumonid Wasp

Megarhyssa greenei

Daily sighting probability <5% · Rare
at Montreal

In 3 days ~10% in a week ~20%

16 Verified sightings at Montreal
June Best month

About the Greene's Giant Ichneumonid Wasp

Megarhyssa greenei, also known as Greene's giant ichneumonid wasp, is a species of large ichneumon wasp. It is known from the United States and Canada. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Toronto 🇨🇦 Canada
<5%
2 Montreal 🇨🇦 Canada
<5%
3 Boston 🇺🇸 United States
<5%
4 Portland 🇺🇸 United States
<5%
5 Washington 🇺🇸 United States
<5%
6 New York City 🇺🇸 United States
<5%
7 Chicago 🇺🇸 United States
<5%

Closest Relatives at Montreal

Long-Tailed Giant Ichneumonid Wasp

Long-Tailed Giant Ichneumonid Wasp

☀️ Diurnal Insect

Megarhyssa macrura

Daily sighting probability <5% · Rare
Black Giant Ichneumonid Wasp

Black Giant Ichneumonid Wasp

☀️ Diurnal Insect

Megarhyssa atrata

Daily sighting probability <5% · Rare
Pimpla pedalis

Pimpla pedalis

Insect

Pimpla pedalis

Daily sighting probability <5% · Rare
Bent-Shielded Besieger Wasp

Bent-Shielded Besieger Wasp

Insect

Gnamptopelta obsidianator

Daily sighting probability <5% · Rare
Theronia hilaris

Theronia hilaris

Insect

Theronia hilaris

Daily sighting probability <5% · Rare
Ischnus inquisitorius

Ischnus inquisitorius

Insect

Ischnus inquisitorius

Daily sighting probability <5% · Rare
Therion circumflexum

Therion circumflexum

Insect

Therion circumflexum

Daily sighting probability <5% · Rare
Podoschistus vittifrons

Podoschistus vittifrons

Insect

Podoschistus vittifrons

Daily sighting probability <5% · Rare
Xorides albopictus

Xorides albopictus

Insect

Xorides albopictus

Daily sighting probability <5% · Rare
Arotes amoenus

Arotes amoenus

Insect

Arotes amoenus

Daily sighting probability <5% · Rare
Common Eastern Bumble Bee

Common Eastern Bumble Bee

☀️ Diurnal Insect

Bombus impatiens

Daily sighting probability ~40% · Likely
Brown-Belted Bumble Bee

Brown-Belted Bumble Bee

☀️ Diurnal Insect

Bombus griseocollis

Daily sighting probability ~20% · Possible

Before you go

What are the chances of seeing a Greene's Giant Ichneumonid Wasp in Montreal?

Rare

Under 5% of wildlife watchers report a Greene's Giant Ichneumonid Wasp sighting in Montreal on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 447th most-seen of the 926 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.

When is the best time to see a Greene's Giant Ichneumonid Wasp in Montreal?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Greene's Giant Ichneumonid Wasp in Montreal on a given day, so our monthly data shows no clear season.

Is Montreal the best place to see a Greene's Giant Ichneumonid Wasp?

Among the best

Of the 7 cities where we can rate Greene's Giant Ichneumonid Wasp sightings, Montreal ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Toronto (Canada, under 5%).

Where does the Greene's Giant Ichneumonid Wasp sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Greene's Giant Ichneumonid Wasp is recorded against all the insects logged in Montreal (16 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.

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