Genus

Small Flat Diving Beetles

Acilius

3 species in our catalog · found in 4 parks

KingdomAnimalia (Animals)
PhylumArthropoda (Arthropods)
ClassInsecta (Insects)
OrderColeoptera (Beetles)
FamilyDytiscidae (Predaceous Diving Beetles)
GenusAcilius (Small Flat Diving Beetles)

Species in this group

Acilius sulcatus

Daily sighting probability ~10% · With luck

Acilius mediatus

Daily sighting probability <5% · Rare

Acilius abbreviatus

Daily sighting probability <5% · Rare

Daily sighting probability by month

Probability-weighted average across the group's species

<5%

Jan

<5%

Feb

<5%

Mar

~10%

Apr

<5%

May

~10%

Jun

<5%

Jul

<5%

Aug

<5%

Sep

<5%

Oct

<5%

Nov

<5%

Dec

When they're spotted

When the group's species are recorded (aggregated)

Where to see Small Flat Diving Beetles

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

Parks Ranked

#	Park	Country	Species	Daily sighting probability
1	Snowdonia National Park	🇬🇧 United Kingdom	1 of 3	~10%
	Lesser Diving-Beetle			~10%
2	Shenandoah National Park	🇺🇸 United States	1 of 3	<5%
	Acilius mediatus			<5%
3	Great Bear Rainforest	🇨🇦 Canada	1 of 3	<5%
	Abbreviated Predaceous Diving Beetle			<5%
4	Rocky Mountain National Park	🇺🇸 United States	1 of 3	<5%
	Abbreviated Predaceous Diving Beetle			<5%

Cities Ranked

#	City	Country	Species	Daily sighting probability
1	Novosibirsk	🇷🇺 Russia	1 of 3	<5%
	Lesser Diving-Beetle			<5%
2	Berlin	🇩🇪 Germany	1 of 3	<5%
	Lesser Diving-Beetle			<5%
3	London	🇬🇧 United Kingdom	1 of 3	<5%
	Lesser Diving-Beetle			<5%
4	Vancouver	🇨🇦 Canada	1 of 3	<5%
	Abbreviated Predaceous Diving Beetle			<5%
5	Vienna	🇦🇹 Austria	1 of 3	<5%
	Lesser Diving-Beetle			<5%
6	Moscow	🇷🇺 Russia	1 of 3	<5%
	Lesser Diving-Beetle			<5%
7	Washington	🇺🇸 United States	1 of 3	<5%
	Acilius mediatus			<5%