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Mayfly - Wikipedia ... Mayfly
The abundance of fossils, the circumstances of preservation and special anatomical adaptations (7 pairs of abdominal gills, 3 caudal filaments with dense rows of swimming hairs) prove that the larvae have been living in freshwater of streams and rivers, just like those of modern mayflies.
Evolution of insects
Baetidae is a family of mayflies with about 1000 described species in 110 genera distributed worldwide. [1] These are among the smallest of mayflies, adults rarely exceeding 10 mm in length excluding the two long slender tails and sometimes much smaller, and members of the family are often referred to as small mayflies or small minnow mayflies.
The Heptageniidae (synonym: Ecdyonuridae) are a family of mayflies with over 500 described species mainly distributed in the Holarctic, Oriental, and Afrotropical regions, and also present in the Central American Tropics and extreme northern South America. [1] The group is sometimes referred to as flat-headed mayflies or stream mayflies.
Binomial name. Leptophlebia marginata. ( Linnaeus, 1767) Subimago of L. marginata. Leptophlebia marginata, the sepia dun, is a species of mayfly in the family Leptophlebiidae. It is native to Europe and North America where it is distributed widely near lakes, ponds and slow-moving streams. The larvae, which are known as nymphs, are aquatic.
Acianthus caudatus, commonly known as mayfly orchid, [2] is a species of flowering plant in the orchid family Orchidaceae and is endemic to eastern Australia. It is a terrestrial herb with a single egg-shaped or heart-shaped leaf and up to nine dark purplish flowers with thin, spreading sepals and petals, often with a musty odour.
Eggs sink immediately to the bottom. These mayfly lives most of its life as larvae or nymphs. Larvae usually stay in the moss lawn of stones. They eat small particles of organic matter, such as algae, plant residues or decaying plants. Nymphs show an elongated and round shaped body, reaching a length of about 10–12 mm (0.39–0.47 in).