Genus

Giant Robber Flies

Promachus

3 species in our catalog · found in 5 parks

KingdomAnimalia (Animals)
PhylumArthropoda (Arthropods)
ClassInsecta (Insects)
OrderDiptera (Flies)
FamilyAsilidae (Robber Flies)
GenusPromachus (Giant Robber Flies)

Species in this group

Promachus rufipes

Daily sighting probability ~20% · Possible

Promachus sackeni

Daily sighting probability ~10% · With luck

Promachus painteri

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

~20%

Jul

~30%

Aug

~20%

Sep

<5%

Oct

<5%

Nov

<5%

Dec

When they're spotted

When the group's species are recorded (aggregated)

Where to see Giant Robber Flies

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

Parks Ranked

#	Park	Country	Species	Daily sighting probability
1	Congaree National Park	🇺🇸 United States	1 of 3	~20%
	Eastern Lion Fly			~20%
2	Shenandoah National Park	🇺🇸 United States	1 of 3	~10%
	Eastern Lion Fly			~10%
3	Great Smoky Mountains National Park	🇺🇸 United States	1 of 3	~10%
	Eastern Lion Fly			~10%
4	Zion National Park	🇺🇸 United States	1 of 3	~10%
	Sacken Lion Fly			~10%
5	Cumbres de Monterrey National Park	🇲🇽 Mexico	1 of 3	~10%
	Black Lion Fly			~10%

Cities Ranked

#	City	Country	Species	Daily sighting probability
1	Washington	🇺🇸 United States	1 of 3	~10%
	Eastern Lion Fly			~10%
2	Austin	🇺🇸 United States	1 of 3	~10%
	Black Lion Fly			~10%
3	Baltimore	🇺🇸 United States	1 of 3	<5%
	Eastern Lion Fly			<5%
4	San Antonio	🇺🇸 United States	1 of 3	<5%
	Black Lion Fly			<5%