Mayflies are aquatic insects belonging to the order Ephemeroptera. This order is part of an ancient group of insects termed the Palaeoptera, which also contains dragonflies and damselflies. Over 3,000 species of mayfly are known worldwide, grouped into over 400 genera in 42 families.
Sturgeon Bay is an arm of Green Bay extending southeastward approximately 10 miles into the Door Peninsula at the city of Sturgeon Bay, located approximately halfway up the Door Peninsula. The bay is connected to Lake Michigan by the Sturgeon Bay Ship Canal. The Potawatomi name for Sturgeon Bay is "Na-ma-we-qui-tong".
Acanthametropus is a genus of mayflies in the family Acanthametropodidae. There are at least two described species in Acanthametropus.
Baetis is a genus of mayflies of the family Baetidae, known as the blue-winged olive to anglers. There are at least 150 described species in Baetis. They are distributed worldwide, with the most variety in North America and northern Europe.
Stenacron is a genus of mayfly in the family Heptageniidae, with a distribution across eastern North America.
Paracloeodes is a genus of small minnow mayflies in the family Baetidae. There are at least 20 described species in Paracloeodes.
The ironcolor shiner is a species of freshwater ray-finned fish from the family Cyprinidae, the minnows and carps. It is a widespread species in streams and rivers in eastern North America.
Jay R Traver was a University of Massachusetts entomologist who studied and published about mayflies. She described over 200 new species and contributed to the reorganization of the systematics of the entire order. She has been called "the first Ephemeroptera specialist in North America".
Neoephemera is a genus of large squaregill mayflies in the family Neoephemeridae first described by McDunnough (1925). and containing approximately six described species in Neoephemera.
Prosopistomatidae is a family of mayflies. There is one extant genus, Prosopistoma, with several dozen species found across Afro-Eurasia and Oceania. They are noted for their unusual beetle-shaped larvae, which live beneath rocks and stones along the gravelly lower reaches of rivers. Their ecology is unclear, but they are probably carnivorous. They are closely related to Baetiscidae, with both families being placed in the Carapacea.
Ametropodidae is a family of mayflies in the order Ephemeroptera. There are at least three genera and three described species in Ametropodidae.
Potamanthus luteus is a species of hacklegilled burrower mayfly in the family Potamanthidae. It is or was found principally on the Rivers Usk and Wye in the UK; in the Usk it may have become extinct and in the Wye it has suffered a population crash.
Acanthophlebia is a genus of pronggill mayflies in the family Leptophlebiidae. There is one described species in Acanthophlebia, Acanthophlebia cruentata.
Metretopodidae is a family of cleftfooted minnow mayflies in the order Ephemeroptera. There are at least 3 genera and more than 20 described species in Metretopodidae.
Acanthametropodidae is a family of sand-dwelling mayflies in the order Ephemeroptera and suborder Pisciforma. There are at least two genera and four described species in Acanthametropodidae.
Iswaeon is a genus of small minnow mayflies in the family Baetidae. There are at least three described species in Iswaeon.
Siphlonisca aerodromia, commonly known as the Tomah mayfly, is an extremely rare species and has only been documented less than 100 times. It was once thought to only known to occur in New York and Northern Maine, but has been since found more recently in eastern Canada as well. The Tomah mayfly is an endangered species and is listed as threatened in both New York and Maine. Its abundance is unknown. The Tomah mayfly is the only species within the monotypic genus Siphlonisca. The Tomah mayfly is a habitat specialist and an indicator species. Adults only live for a few days as they deposit eggs into rivers and streams. Nymphs hatch from eggs and migrate to the floodplains during springtime and following snow melt. They spend most of their lives in the floodplains, feeding on other aquatic invertebrates in order to grow rapidly. The Tomah mayfly was considered as a flagship species and led to the decision not to dam a stream and flood a sedge meadow and therefore conserve the ecosystem.
