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".

Tony Curran is a Scottish actor who has appeared in Underworld: Evolution, Doctor Who, Roots, and the Netflix historical epic Outlaw King. He appears in the Marvel Cinematic Universe film Thor: The Dark World (2013) as Bor and the second season of Daredevil (2016) as Finn Cooley. In late 2022, Curran starred in the BBC drama Mayflies.

"Reset" is the sixth episode of the second series of the British science fiction television series Torchwood, which was first broadcast on BBC Three on 13 February 2008.

Leptophlebiidae is a family belonging to the Ephemeropterans that are commonly known as the prong-gilled mayflies or leptophlebiids. It is the only family in the superfamily Leptophlebioidea. There are more than 650 described species of Leptophlebiids, which are easily recognized by the forked gills present on the larvae's abdomen, thus their common name.

His Majesty's Airship No. 1 was designed and built by Vickers, Sons and Maxim at their works in Barrow-in-Furness, Lancashire, England, as an aerial scout airship for the Royal Navy. It was the first British rigid airship to be built, and was constructed in a direct attempt to compete with the German airship programme. Often referred to as "Mayfly", a nickname given to it by the lower deck, in public records it is designated 'HMA Hermione' because the naval contingent at Barrow were attached to HMS Hermione, a cruiser moored locally preparing to act as its tender.

Acerpenna is a genus of mayflies in the family Baetidae. It has at least three species.

Ephemerelloidea is a superfamily of mayflies in the suborder Pannota. It is a basal group of mayflies with a worldwide distribution. Members of this super-family can be distinguished from those of Caenoidea by the fact that the gills of the nymphs are not filamentous.

Hexagenia is a genus of mayfly in the family Ephemeridae, the common burrower mayflies.

Ephemera simulans is a species of mayfly. It is commonly found throughout the United States. The species is used for fly fishing.

Pisciforma is a suborder of mayflies in the order Ephemeroptera. There are at least 410 described species in Pisciforma.

Isonychia is a genus of brushlegged mayflies in the family Isonychiidae, the sole genus of the family. There are more than 30 described species in Isonychia.

Furcatergalia is a suborder of mayflies in the order Ephemeroptera. There are about 14 families and at least 1,700 described species in Furcatergalia.

Polymitarcyidae is a family of pale burrower mayflies in the order Ephemeroptera. There are about 10 genera and more than 90 described species in Polymitarcyidae.