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Mayflies have ancestral traits that were probably present in the first flying insects, such as long tails and wings that do not fold flat over the abdomen. Their immature stages are aquatic fresh water forms (called "naiads" or " nymphs "), whose presence indicates a clean, unpolluted and highly oxygenated aquatic environment.
Hexagenia limbata. (Serville, 1829) [1] Hexagenia limbata, the giant mayfly, is a species of mayfly in the family Ephemeridae. It is native to North America where it is distributed widely near lakes and slow-moving rivers. [2] The larvae, known as nymphs, are aquatic and burrow in mud and the adult insects have brief lives.
Nymphs have greatly expanded, wing-like flanges on the abdomen and bumps on the thorax which distinguish the Tomah mayfly from other species of mayflies. [4] Tomah mayfly nymphs and sub-adults feed predaceously on other invertebrates in the floodplains, which is unusual as other species of mayflies feed on dead plant material. [4]
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.
Flies may have been among the evolutionarily earliest pollinators responsible for early plant pollination. Fruit flies are used as model organisms in research, but less benignly, mosquitoes are vectors for malaria , dengue , West Nile fever , yellow fever , encephalitis , and other infectious diseases ; and houseflies , commensal with humans ...
Besides the nuisance of throngs of bugs — as well as the look and smell of their piled bodies as they die — fish flies don't pose a threat to humans or plants. In adulthood, fish flies don't ...
Mayflies. Wikimedia Commons has media related to Ephemeroptera. Articles relating to Mayflies (order Ephemeroptera), aquatic insects. 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 ...
Rhithrogena germanica is a European species of mayfly, and is "probably the most famous of all British mayflies", because of its use in fly fishing. It is known in the British Isles as the March brown mayfly, a name which is used in the United States for a different species, Rhithrogena morrisoni. [3] It emerges as a subimago at the end of ...