Family

Giant Water Bugs

Belostomatidae

7 species in our catalog · found in 11 parks

KingdomAnimalia (Animals)
PhylumArthropoda (Arthropods)
ClassInsecta (Insects)
OrderHemiptera (True Bugs, Hoppers, Aphids, and allies)
FamilyBelostomatidae (Giant Water Bugs)

Species in this group

Benacus griseus

Daily sighting probability ~20% · Possible

Lethocerus americanus

Daily sighting probability ~10% · With luck

Lethocerus uhleri

Daily sighting probability ~10% · With luck

Lethocerus medius

Daily sighting probability ~10% · With luck

Diplonychus eques

Daily sighting probability ~10% · With luck

Belostoma lutarium

Daily sighting probability <5% · Rare

Lethocerus cordofanus

Daily sighting probability <5% · Rare

Daily sighting probability by month

Probability-weighted average across the group's species

<5%

Jan

~10%

Feb

~10%

Mar

~10%

Apr

~10%

May

~10%

Jun

~10%

Jul

~10%

Aug

~10%

Sep

~10%

Oct

~10%

Nov

~10%

Dec

When they're spotted

When the group's species are recorded (aggregated)

Where to see Giant Water Bugs

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

Parks Ranked

#	Park	Country	Species	Daily sighting probability
1	Big Cypress National Preserve	🇺🇸 United States	2 of 7	~30%
	Eastern Toe-Biter			~20%
	Uhler's Giant Water Bug			~10%
2	Everglades National Park	🇺🇸 United States	2 of 7	~10%
	Eastern Toe-Biter			~10%
	Belostoma lutarium			<5%
3	Riding Mountain National Park	🇨🇦 Canada	1 of 7	~10%
	American Giant Water Bug			~10%
4	Great Bear Rainforest	🇨🇦 Canada	1 of 7	~10%
	American Giant Water Bug			~10%
5	Big Bend National Park	🇺🇸 United States	1 of 7	~10%
	Lethocerus medius			~10%
6	Lamington National Park	🇦🇺 Australia	1 of 7	~10%
	Diplonychus eques			~10%
7	Acadia National Park	🇺🇸 United States	1 of 7	~10%
	American Giant Water Bug			~10%
8	Merritt Island National Wildlife Refuge	🇺🇸 United States	1 of 7	<5%
	Uhler's Giant Water Bug			<5%
9	Saguaro National Park	🇺🇸 United States	1 of 7	<5%
	Lethocerus medius			<5%
10	Cumbres de Monterrey National Park	🇲🇽 Mexico	1 of 7	<5%
	Lethocerus medius			<5%
11	Kruger National Park	🇿🇦 South Africa	1 of 7	<5%
	African Giant Water Bug			<5%

Cities Ranked

#	City	Country	Species	Daily sighting probability
1	Minneapolis [Saint Paul]	🇺🇸 United States	1 of 7	~10%
	American Giant Water Bug			~10%
2	Houston	🇺🇸 United States	2 of 7	~10%
	Uhler's Giant Water Bug			<5%
	Eastern Toe-Biter			<5%
3	Miami	🇺🇸 United States	2 of 7	~10%
	Eastern Toe-Biter			<5%
	Belostoma lutarium			<5%
4	Edmonton	🇨🇦 Canada	1 of 7	~10%
	American Giant Water Bug			~10%
5	Calgary	🇨🇦 Canada	1 of 7	<5%
	American Giant Water Bug			<5%
6	Montreal	🇨🇦 Canada	1 of 7	<5%
	American Giant Water Bug			<5%
7	Orlando	🇺🇸 United States	1 of 7	<5%
	Eastern Toe-Biter			<5%
8	Brisbane	🇦🇺 Australia	1 of 7	<5%
	Diplonychus eques			<5%
9	Vancouver	🇨🇦 Canada	1 of 7	<5%
	American Giant Water Bug			<5%
10	Salt Lake City	🇺🇸 United States	1 of 7	<5%
	American Giant Water Bug			<5%
11	Monterrey	🇲🇽 México	1 of 7	<5%
	Lethocerus medius			<5%
12	San Antonio	🇺🇸 United States	1 of 7	<5%
	Lethocerus medius			<5%
13	Dallas	🇺🇸 United States	1 of 7	<5%
	Uhler's Giant Water Bug			<5%
14	Melbourne	🇦🇺 Australia	1 of 7	<5%
	Diplonychus eques			<5%
15	Austin	🇺🇸 United States	1 of 7	<5%
	Lethocerus medius			<5%
16	Boston	🇺🇸 United States	1 of 7	<5%
	American Giant Water Bug			<5%
17	Toronto	🇨🇦 Canada	1 of 7	<5%
	American Giant Water Bug			<5%
18	Washington	🇺🇸 United States	1 of 7	<5%
	Eastern Toe-Biter			<5%

Giant Water Bugs

Species in this group

Eastern Toe-Biter

American Giant Water Bug

Uhler's Giant Water Bug

Lethocerus medius

Diplonychus eques

Belostoma lutarium

African Giant Water Bug

Daily sighting probability by month

When they're spotted

Where to see Giant Water Bugs

Parks Ranked

Cities Ranked