Family

Marsh Flies

Sciomyzidae

5 species in our catalog · found in 6 parks

KingdomAnimalia (Animals)
PhylumArthropoda (Arthropods)
ClassInsecta (Insects)
OrderDiptera (Flies)
FamilySciomyzidae (Marsh Flies)

Species in this group

Trypetoptera punctulata

Daily sighting probability ~10% · With luck

Coremacera marginata

Daily sighting probability ~10% · With luck

Euthycera flavescens

Daily sighting probability <5% · Rare

Trypetoptera canadensis

Daily sighting probability <5% · Rare

Euthycera chaerophylli

Daily sighting probability <5% · Rare

Daily sighting probability by month

Probability-weighted average across the group's species

<5%

Jan

<5%

Feb

<5%

Mar

<5%

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 Marsh Flies

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

Parks Ranked

#	Park	Country	Species	Daily sighting probability
1	Cévennes National Park	🇫🇷 France	2 of 5	~10%
	Spotted Marsh Fly			~10%
	Sieve-Winged Snailkiller			<5%
2	Bavarian Forest National Park	🇩🇪 Germany	2 of 5	~10%
	Sieve-Winged Snailkiller			~10%
	Spotted Marsh Fly			<5%
3	Great Smoky Mountains National Park	🇺🇸 United States	2 of 5	~10%
	Euthycera flavescens			<5%
	Trypetoptera canadensis			<5%
4	Wadden Sea National Park	🇩🇪 Germany	2 of 5	~10%
	Spotted Marsh Fly			<5%
	Sieve-Winged Snailkiller			<5%
5	Shenandoah National Park	🇺🇸 United States	1 of 5	<5%
	Euthycera flavescens			<5%
6	Pyrénées National Park	🇫🇷 France	1 of 5	<5%
	Euthycera chaerophylli			<5%

Cities Ranked

#	City	Country	Species	Daily sighting probability
1	Helsinki	🇫🇮 Finland	2 of 5	~10%
	Sieve-Winged Snailkiller			<5%
	Spotted Marsh Fly			<5%
2	Paris	🇫🇷 France	2 of 5	~10%
	Spotted Marsh Fly			<5%
	Sieve-Winged Snailkiller			<5%
3	Berlin	🇩🇪 Germany	2 of 5	~10%
	Sieve-Winged Snailkiller			<5%
	Spotted Marsh Fly			<5%
4	Vienna	🇦🇹 Austria	2 of 5	~10%
	Spotted Marsh Fly			<5%
	Sieve-Winged Snailkiller			<5%
5	Washington	🇺🇸 United States	2 of 5	<5%
	Euthycera flavescens			<5%
	Trypetoptera canadensis			<5%
6	Kyiv	🇺🇦 Ukraine	1 of 5	<5%
	Sieve-Winged Snailkiller			<5%
7	Baltimore	🇺🇸 United States	1 of 5	<5%
	Trypetoptera canadensis			<5%
8	London	🇬🇧 United Kingdom	1 of 5	<5%
	Sieve-Winged Snailkiller			<5%
9	Moscow	🇷🇺 Russia	1 of 5	<5%
	Sieve-Winged Snailkiller			<5%
10	Toronto	🇨🇦 Canada	1 of 5	<5%
	Trypetoptera canadensis			<5%

Marsh Flies

Species in this group

Spotted Marsh Fly

Sieve-Winged Snailkiller

Euthycera flavescens

Trypetoptera canadensis

Euthycera chaerophylli

Daily sighting probability by month

When they're spotted

Where to see Marsh Flies

Parks Ranked

Cities Ranked