Question 1

What are the chances of seeing a Black-Margined Flower Fly in Salt Lake City?

Accepted Answer

With luck. About 10% of wildlife watchers report a Black-Margined Flower Fly sighting in Salt Lake City on a given day, based on 21 verified sightings from GBIF citizen-science data. It is the 99th most-seen of the 242 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.

Question 2

When is the best time to see a Black-Margined Flower Fly in Salt Lake City?

Accepted Answer

April–May and September–October. In those months about 10% of wildlife watchers report a Black-Margined Flower Fly in Salt Lake City on a given day, against under 5% in June–August and November–March, the lowest months.

Question 3

What time of day is best to see a Black-Margined Flower Fly?

Accepted Answer

Between 11 am and 2 pm. Across all the parks we cover, that three-hour window holds the most Black-Margined Flower Fly sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.

Question 4

Is Salt Lake City the best place to see a Black-Margined Flower Fly?

Accepted Answer

6th of 11. Of the 11 cities where we can rate Black-Margined Flower Fly sightings, Salt Lake City ranks 6th at about 10%. The best odds are in Sacramento (United States, about 20%), Portland (United States, about 10%) and Vancouver (Canada, about 10%).

Question 5

Which relatives of the Black-Margined Flower Fly live in Salt Lake City?

Accepted Answer

Same family: Syrphidae. The closest relatives of the Black-Margined Flower Fly that you can see in Salt Lake City (family Syrphidae, Hover Flies) are Large-Tailed Aphideater (about 10%), Eurasian Drone Fly (about 10%) and White-Bowed Smoothwing (about 10%), with each one's daily chance of a sighting.

Question 6

Where does the Black-Margined Flower Fly sighting chance come from?

Accepted Answer

GBIF citizen-science records. It is estimated from how often the Black-Margined Flower Fly is recorded against all the insects logged in Salt Lake City (21 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.

#	Park	Country	Daily sighting probability
1	Pacific Rim National Park Reserve	🇨🇦 Canada	~10%
2	Redwood National Park	🇺🇸 United States	~10%
3	Banff National Park	🇨🇦 Canada	~10%
4	Great Bear Rainforest	🇨🇦 Canada	~10%
5	Olympic National Park	🇺🇸 United States	~10%
6	Glacier National Park	🇺🇸 United States	~10%
7	Grand Teton National Park	🇺🇸 United States	~10%
8	Rocky Mountain National Park	🇺🇸 United States	<5%

#	City	Country	Daily sighting probability
1	Sacramento	🇺🇸 United States	~20%
2	Portland	🇺🇸 United States	~10%
3	Vancouver	🇨🇦 Canada	~10%
4	Seattle	🇺🇸 United States	~10%
5	Calgary	🇨🇦 Canada	~10%
6	Salt Lake City	🇺🇸 United States	~10%
7	San Francisco	🇺🇸 United States	~10%
8	Edmonton	🇨🇦 Canada	<5%
9	Los Angeles	🇺🇸 United States	<5%
10	Denver	🇺🇸 United States	<5%

Black-Margined Flower Fly

About the Black-Margined Flower Fly

Recent sightings of Black-Margined Flower Fly in Salt Lake City

Global Distribution

Parks Where Found

Cities Where Found

Closest Relatives at Salt Lake City

Large-Tailed Aphideater

Eurasian Drone Fly

White-Bowed Smoothwing

Narcissus Bulb Fly

Thick-Legged Hover Fly

Common Drone Fly

Common Loopwing Aphideater

Margined Calligrapher

Yellow-Shouldered Drone Fly

Common Grass Skimmer

Western Aphideater

Dioprosopa clavatus

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