Spilomyia (Hornet Flies) — Wallace's Line

Species in this group

Spilomyia fusca

Daily sighting probability ~10% · With luck

Spilomyia sayi

Daily sighting probability ~10% · With luck

Spilomyia longicornis

Daily sighting probability ~10% · With luck

Daily sighting probability by month

Probability-weighted average across the group's species

<5%

Jan

<5%

Feb

<5%

Mar

<5%

Apr

<5%

May

<5%

Jun

~10%

Jul

~10%

Aug

~10%

Sep

~10%

Oct

<5%

Nov

<5%

Dec

When they're spotted

When the group's species are recorded (aggregated)

Where to see Hornet Flies

Warmer areas are where this group is recorded most often. Our parks Our cities

Parks Ranked

#	Park	Country	Species	Daily sighting probability
1	Acadia National Park	🇺🇸 United States	3 of 3	~20%
	Bald-Faced Hornet Fly			~10%
	Four-Lined Hornet Fly			~10%
	Eastern Hornet Fly			~10%
2	Shenandoah National Park	🇺🇸 United States	2 of 3	~10%
	Eastern Hornet Fly			~10%
	Bald-Faced Hornet Fly			~10%
3	Great Smoky Mountains National Park	🇺🇸 United States	2 of 3	~10%
	Eastern Hornet Fly			~10%
	Bald-Faced Hornet Fly			<5%
4	Point Pelee National Park	🇨🇦 Canada	1 of 3	~10%
	Eastern Hornet Fly			~10%

Cities Ranked

#	City	Country	Species	Daily sighting probability
1	Toronto	🇨🇦 Canada	3 of 3	~10%
	Eastern Hornet Fly			~10%
	Four-Lined Hornet Fly			~10%
	Bald-Faced Hornet Fly			<5%
2	Minneapolis [Saint Paul]	🇺🇸 United States	2 of 3	~10%
	Eastern Hornet Fly			~10%
	Four-Lined Hornet Fly			<5%
3	Montreal	🇨🇦 Canada	2 of 3	~10%
	Eastern Hornet Fly			~10%
	Four-Lined Hornet Fly			<5%
4	Boston	🇺🇸 United States	1 of 3	~10%
	Eastern Hornet Fly			~10%
5	Detroit	🇺🇸 United States	1 of 3	~10%
	Eastern Hornet Fly			~10%
6	Baltimore	🇺🇸 United States	1 of 3	<5%
	Eastern Hornet Fly			<5%
7	Washington	🇺🇸 United States	1 of 3	<5%
	Eastern Hornet Fly			<5%
8	New York City	🇺🇸 United States	1 of 3	<5%
	Eastern Hornet Fly			<5%
9	Edmonton	🇨🇦 Canada	1 of 3	<5%
	Four-Lined Hornet Fly			<5%
10	Dallas	🇺🇸 United States	1 of 3	<5%
	Eastern Hornet Fly			<5%
11	Philadelphia	🇺🇸 United States	1 of 3	<5%
	Eastern Hornet Fly			<5%
12	Chicago	🇺🇸 United States	1 of 3	<5%
	Eastern Hornet Fly			<5%
13	Austin	🇺🇸 United States	1 of 3	<5%
	Eastern Hornet Fly			<5%

Hornet Flies

Species in this group

Bald-Faced Hornet Fly

Four-Lined Hornet Fly

Eastern Hornet Fly

Daily sighting probability by month

When they're spotted

Where to see Hornet Flies

Parks Ranked

Cities Ranked