Family

Horse and Deer Flies

Tabanidae

27 species in our catalog · found in 31 parks

KingdomAnimalia (Animals)
PhylumArthropoda (Arthropods)
ClassInsecta (Insects)
OrderDiptera (Flies)
FamilyTabanidae (Horse and Deer Flies)

Species in this group

Osca lata

Daily sighting probability ~40% · Likely

Tabanus punctifer

Daily sighting probability ~40% · Likely

Philipomyia aprica

Daily sighting probability ~20% · Possible

Tabanus sudeticus

Daily sighting probability ~20% · Possible

Tabanus atratus

Daily sighting probability ~20% · Possible

Rhigioglossa nitens

Daily sighting probability ~10% · With luck

Diachlorus ferrugatus

Daily sighting probability ~10% · With luck

Chlorotabanus crepuscularis

Daily sighting probability ~10% · With luck

Philoliche umbratipennis

Daily sighting probability ~10% · With luck

Tabanus biguttatus

Daily sighting probability ~10% · With luck

Chlorotabanus mexicanus

Daily sighting probability ~10% · With luck

Ancala africana

Daily sighting probability ~10% · With luck

Stonemyia tranquilla

Daily sighting probability ~10% · With luck

Chrysops relictus

Daily sighting probability ~10% · With luck

Tabanus vittiger

Daily sighting probability ~10% · With luck

Tabanus taeniola

Daily sighting probability ~10% · With luck

Chrysops longicornis

Daily sighting probability <5% · Rare

Goniops chrysocoma

Daily sighting probability <5% · Rare

Scaptia auriflua

Daily sighting probability <5% · Rare

Haematopota pluvialis

Daily sighting probability <5% · Rare

Tabanus lineola

Daily sighting probability <5% · Rare

Chrysops caecutiens

Daily sighting probability <5% · Rare

Silvius gigantulus

Daily sighting probability <5% · Rare

Chrysops brunneus

Daily sighting probability <5% · Rare

Tabanus gratus

Daily sighting probability <5% · Rare

Tabanus atrimanus

Daily sighting probability <5% · Rare

Philoliche lateralis

Daily sighting probability <5% · Rare

See all 27 species Show fewer

Daily sighting probability by month

Probability-weighted average across the group's species

~10%

Jan

<5%

Feb

~10%

Mar

~10%

Apr

~10%

May

~10%

Jun

~10%

Jul

~10%

Aug

~10%

Sep

~10%

Oct

<5%

Nov

~10%

Dec

When they're spotted

When the group's species are recorded (aggregated)

Where to see Horse and Deer Flies

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

Parks Ranked

#	Park	Country	Species	Daily sighting probability
1	Vicente Pérez Rosales National Park	🇨🇱 Chile	1 of 27	~40%
	Osca lata			~40%
2	Death Valley National Park	🇺🇸 United States	1 of 27	~40%
	Western Black Horse Fly			~40%
3	Everglades National Park	🇺🇸 United States	5 of 27	~20%
	Black Horse Fly			~10%
	Yellow Fly Of The Dismal Swamp			~10%
	Green Horse Fly			~10%
	Striped Horse Fly			<5%
	Brownish Deer Fly			<5%
4	Big Cypress National Preserve	🇺🇸 United States	3 of 27	~20%
	Green Horse Fly			~10%
	Black Horse Fly			~10%
	Yellow Fly Of The Dismal Swamp			~10%
5	Aigüestortes National Park	🇪🇸 Spain	1 of 27	~20%
	Philipomyia aprica			~20%
6	iSimangaliso Wetland Park	🇿🇦 South Africa	4 of 27	~20%
	African Horsefly			~10%
	Hippo Fly			~10%
	Chrysops longicornis			<5%
	Tabanus taeniola			<5%
7	Vanoise National Park	🇫🇷 France	1 of 27	~20%
	Philipomyia aprica			~20%
8	Kruger National Park	🇿🇦 South Africa	4 of 27	~20%
	Hippo Fly			~10%
	Tabanus taeniola			~10%
	Tabanus gratus			<5%
	Tabanus atrimanus			<5%
9	Snowdonia National Park	🇬🇧 United Kingdom	1 of 27	~20%
	Dark Giant Horse Fly			~20%
10	Padre Island National Seashore	🇺🇸 United States	1 of 27	~20%
	Black Horse Fly			~20%
11	Pyrénées National Park	🇫🇷 France	3 of 27	~10%
	Philipomyia aprica			~10%
	Splayed Deer Fly			<5%
	Twin-Lobed Deer Fly			<5%
12	Merritt Island National Wildlife Refuge	🇺🇸 United States	1 of 27	~10%
	Black Horse Fly			~10%
13	Nahuel Huapi National Park	🇦🇷 Argentina	1 of 27	~10%
	Osca lata			~10%
14	West Coast National Park	🇿🇦 South Africa	1 of 27	~10%
	Silver Horsefly			~10%
15	Mercantour National Park	🇫🇷 France	1 of 27	~10%
	Philipomyia aprica			~10%
16	Sian Ka'an Biosphere Reserve	🇲🇽 Mexico	1 of 27	~10%
	Yellow Fly Of The Dismal Swamp			~10%
17	Triglav National Park	🇸🇮 Slovenia	1 of 27	~10%
	Philipomyia aprica			~10%
18	Ecrins National Park	🇫🇷 France	1 of 27	~10%
	Philipomyia aprica			~10%
19	Addo Elephant National Park	🇿🇦 South Africa	1 of 27	~10%
	Philoliche umbratipennis			~10%
20	Cairngorms National Park	🇬🇧 United Kingdom	1 of 27	~10%
	Dark Giant Horse Fly			~10%
21	Braulio Carrillo National Park	🇨🇷 Costa Rica	1 of 27	~10%
	Chlorotabanus mexicanus			~10%
22	Acadia National Park	🇺🇸 United States	1 of 27	~10%
	Stonemyia tranquilla			~10%
23	Wadden Sea National Park	🇩🇪 Germany	1 of 27	~10%
	Twin-Lobed Deer Fly			~10%
24	Galápagos Islands	🇪🇨 Ecuador	1 of 27	~10%
	Tabanus vittiger			~10%
25	Table Mountain National Park	🇿🇦 South Africa	2 of 27	~10%
	Philoliche lateralis			<5%
	Hippo Fly			<5%
26	Great Smoky Mountains National Park	🇺🇸 United States	1 of 27	<5%
	Golden-Haired Horse Fly			<5%
27	Blue Mountains National Park	🇦🇺 Australia	1 of 27	<5%
	Flower-Feeding March Fly			<5%
28	Bavarian Forest National Park	🇩🇪 Germany	1 of 27	<5%
	Notch-Horned Cleg			<5%
29	Cévennes National Park	🇫🇷 France	1 of 27	<5%
	Splayed Deer Fly			<5%
30	Saguaro National Park	🇺🇸 United States	1 of 27	<5%
	Western Black Horse Fly			<5%
31	Olympic National Park	🇺🇸 United States	1 of 27	<5%
	Golden Deer Fly			<5%

Cities Ranked

#	City	Country	Species	Daily sighting probability
1	Washington	🇺🇸 United States	2 of 27	~10%
	Black Horse Fly			<5%
	Golden-Haired Horse Fly			<5%
2	Dallas	🇺🇸 United States	2 of 27	~10%
	Black Horse Fly			<5%
	Striped Horse Fly			<5%
3	Salt Lake City	🇺🇸 United States	1 of 27	~10%
	Western Black Horse Fly			~10%
4	Amsterdam	🇳🇱 Netherlands	1 of 27	~10%
	Twin-Lobed Deer Fly			~10%
5	Toronto	🇨🇦 Canada	2 of 27	<5%
	Black Horse Fly			<5%
	Brownish Deer Fly			<5%
6	Baltimore	🇺🇸 United States	1 of 27	<5%
	Black Horse Fly			<5%
7	Moscow	🇷🇺 Russia	2 of 27	<5%
	Twin-Lobed Deer Fly			<5%
	Notch-Horned Cleg			<5%
8	Miami	🇺🇸 United States	2 of 27	<5%
	Black Horse Fly			<5%
	Striped Horse Fly			<5%
9	Kyiv	🇺🇦 Ukraine	1 of 27	<5%
	Twin-Lobed Deer Fly			<5%
10	New York City	🇺🇸 United States	2 of 27	<5%
	Black Horse Fly			<5%
	Brownish Deer Fly			<5%
11	Sydney	🇦🇺 Australia	1 of 27	<5%
	Flower-Feeding March Fly			<5%
12	Helsinki	🇫🇮 Finland	1 of 27	<5%
	Twin-Lobed Deer Fly			<5%
13	Warsaw	🇵🇱 Poland	1 of 27	<5%
	Twin-Lobed Deer Fly			<5%
14	Minneapolis [Saint Paul]	🇺🇸 United States	1 of 27	<5%
	Black Horse Fly			<5%
15	Houston	🇺🇸 United States	1 of 27	<5%
	Black Horse Fly			<5%
16	Orlando	🇺🇸 United States	1 of 27	<5%
	Yellow Fly Of The Dismal Swamp			<5%
17	Sacramento	🇺🇸 United States	1 of 27	<5%
	Western Black Horse Fly			<5%
18	Denver	🇺🇸 United States	1 of 27	<5%
	Western Black Horse Fly			<5%
19	Montreal	🇨🇦 Canada	1 of 27	<5%
	Black Horse Fly			<5%
20	Austin	🇺🇸 United States	1 of 27	<5%
	Black Horse Fly			<5%
21	Phoenix	🇺🇸 United States	1 of 27	<5%
	Western Black Horse Fly			<5%
22	Chicago	🇺🇸 United States	1 of 27	<5%
	Black Horse Fly			<5%
23	Philadelphia	🇺🇸 United States	1 of 27	<5%
	Black Horse Fly			<5%
24	Cape Town	🇿🇦 South Africa	1 of 27	<5%
	Hippo Fly			<5%
25	Melbourne	🇦🇺 Australia	1 of 27	<5%
	Flower-Feeding March Fly			<5%
26	Vienna	🇦🇹 Austria	1 of 27	<5%
	Dark Giant Horse Fly			<5%
27	Brisbane	🇦🇺 Australia	1 of 27	<5%
	Flower-Feeding March Fly			<5%
28	Boston	🇺🇸 United States	1 of 27	<5%
	Black Horse Fly			<5%
29	San Francisco	🇺🇸 United States	1 of 27	<5%
	Western Black Horse Fly			<5%
30	Los Angeles	🇺🇸 United States	1 of 27	<5%
	Western Black Horse Fly			<5%

Horse and Deer Flies

Species in this group

Osca lata

Western Black Horse Fly

Philipomyia aprica

Dark Giant Horse Fly

Black Horse Fly

Silver Horsefly

Yellow Fly Of The Dismal Swamp

Green Horse Fly

Philoliche umbratipennis

Hippo Fly

Chlorotabanus mexicanus

African Horsefly

Stonemyia tranquilla

Twin-Lobed Deer Fly

Tabanus vittiger

Tabanus taeniola

Chrysops longicornis

Golden-Haired Horse Fly

Flower-Feeding March Fly

Notch-Horned Cleg

Striped Horse Fly

Splayed Deer Fly

Golden Deer Fly

Brownish Deer Fly

Tabanus gratus

Tabanus atrimanus

Philoliche lateralis

Daily sighting probability by month

When they're spotted

Where to see Horse and Deer Flies

Parks Ranked

Cities Ranked