Ferruginous Tiger Crane Fly

Ferruginous Tiger Crane Fly

Nephrotoma ferruginea

Daily sighting probability <5% · Rare
at Denver

In 3 days ~10% in a week ~30%

24 Verified sightings at Denver
18 In all 2 parks From 2019 to 2026
June Best month
☀️ Diurnal When it's spotted

About the Ferruginous Tiger Crane Fly

Nephrotoma ferruginea is a species of large crane fly in the family Tipulidae. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Gros Morne National Park 🇨🇦 Canada
~10%
2 Shenandoah National Park 🇺🇸 United States
~10%

Cities Where Found

# City Country Daily sighting probability
1 Minneapolis [Saint Paul] 🇺🇸 United States
~10%
2 Boston 🇺🇸 United States
~10%
3 Montreal 🇨🇦 Canada
~10%
4 Philadelphia 🇺🇸 United States
~10%
5 Detroit 🇺🇸 United States
~10%
6 Chicago 🇺🇸 United States
~10%
7 Baltimore 🇺🇸 United States
~10%
8 New York City 🇺🇸 United States
~10%
9 Toronto 🇨🇦 Canada
~10%
10 Washington 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Ferruginous Tiger Crane Fly in Denver?

Rare

Under 5% of wildlife watchers report a Ferruginous Tiger Crane Fly sighting in Denver on a given day, based on 24 verified sightings from GBIF citizen-science data. It is the 170th most-seen of the 461 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.

When is the best time to see a Ferruginous Tiger Crane Fly in Denver?

June and August

In those months about 10% of wildlife watchers report a Ferruginous Tiger Crane Fly in Denver on a given day, against under 5% in July and September–May, the lowest months.

What time of day is best to see a Ferruginous Tiger Crane Fly?

Between 11 am and 2 pm

Across all the parks we cover, that three-hour window holds the most Ferruginous Tiger Crane Fly sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Denver the best place to see a Ferruginous Tiger Crane Fly?

11th of 17

Of the 17 cities where we can rate Ferruginous Tiger Crane Fly sightings, Denver ranks 11th at under 5%. The best odds are in Minneapolis [Saint Paul] (United States, about 10%), Boston (United States, about 10%) and Montreal (Canada, about 10%).

Where does the Ferruginous Tiger Crane Fly sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Ferruginous Tiger Crane Fly is recorded against all the insects logged in Denver (24 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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