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Dolania is a monotypic genus of mayfly in the family Behningiidae containing the single species Dolania americana, also known as the American sand-burrowing mayfly. [2] It is found in the southeastern United States, as far south as Florida, and is generally uncommon. [ 3 ]
As of 2012, over 3,000 species of mayfly in 42 families and over 400 genera are known worldwide, [50] [51] including about 630 species in North America. [52] Mayflies are an ancient group of winged (pterygote) insects.
The eggs are laid by the female dipping her abdomen into the surface of the water. This mayfly usually has a two-year life cycle (one- and three-year cycles have also been recorded), [1] with the nymphal stage lasting for most of this period and the adult being on the wing briefly in summer.
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.
Women aged 65 are expected to live to 86.9 years, while men of the same age are likely to reach 84.3 years, according to the Social Security Administration's life expectancy calculator.
Life expectancy at birth was 78.4 years for the total U.S. population in 2023, according to the report released Thursday, an increase of nearly a full year from 77.5 years in 2022. The report ...
Life expectancy in the U.S. is projected to increase from 78.3 years in 2022 to 79.9 years in 2035 and to 80.4 years in 2050 for all sexes combined, researchers said.
However, members of one species of mayfly have an adult lifespan of as little as 5 minutes. [89] The daddy longlegs spider is not the most venomous spider in the world. Their fangs are capable of piercing human skin, but the tiny amount of venom they carry causes only a mild burning sensation for a few seconds. [90]