Mayfly | Insects, Aquatic Larvae & Metamorphosis | Britannica
2024年11月13日 · The adult mayfly has two or three threadlike tails, usually as long as, or longer than, the body. Nymphal characters include a single claw terminating each of the six legs. The surface of the thoracic region of the body is strongly rounded outward and bears the developing wings in external pads on the upper surface.
As members of the Order Ephemerop-tera, mayflies have four life stages: egg, larva, subimago, and imago (adult). The female lays eggs in the water, and most species of larvae hatch from a week to several months later. All larvae are aquatic and undergo more instars (periods between molts) than any other insect order.
(PDF) Biology of Mayflies - ResearchGate
2003年11月28日 · the number of mayfly species usually decreases with increasing altitude and latitude, there are mayflies in ponds across the Arctic tundra and immediately do wnstream of
Mayfly - Wikipedia
Carnivorous stonefly, caddisfly, alderfly and dragonfly larvae feed on bottom-dwelling mayfly nymphs, as do aquatic beetles, leeches, crayfish and amphibians. [27] Besides the direct mortality caused by these predators, the behaviour of their potential prey is also affected, with the nymphs' growth rate being slowed by the need to hide rather ...
Order Ephemeroptera - Mayflies - BugGuide.Net
2024年5月19日 · Nymph (usually called larva): antennae short; abdomen with lateral gills and 2‒3 long tail filaments
Mayflies: Short-Lived World Of Order Ephemeroptera | Earth Life
2020年4月17日 · Mayfly larvae are called nymphs and generally have 3 tails, gills on their abdomen and only one claw on each leg. Mayfly nymphs may go through as many as 50 instars (i.e. may moult 50 times) in some species, though less is more usual.
Mayflies (Ephemeroptera) - SpringerLink
Most mayfly adults have two winged stages, one termed the subimago and the other the imago. The subimago, the winged stage after the molt from the nymphal stage (many entomologists prefer the term larvae for all immature insects) after a period of time that varies from an hour to days, will molt to the imago or adult stage.
Ephemeroptera (Plectoptera: Mayflies) | SpringerLink
2015年1月1日 · Soft-bodied insects with short setaceous antennae and vestigial mouthparts derived from a biting type. Wings membranous, held vertically upwards when at rest, the hind pair considerably reduced; ‘intercalary’ veins and numerous cross-veins usually present. Abdomen terminated by very long cerci with or without a similar median caudal prolongation.
Kinematics and hydrodynamics of swimming in the mayfly larva
2004年2月22日 · The present study describes an invertebrate undulatory swimmer, the mayfly larva, that pushes water almost directly to the side rather than behind the body and, in this respect, resembles the damsel-fly larva.
Ephemeroptera: (Mayflies) - ScienceDirect
2009年1月1日 · Together with their ancient origin and the strict association of larvae with freshwaters habitats, Ephemeroptera represent an interesting group for biogeographical analyses. The Siphlonuridae and allied families, typically cool-adapted mayflies, are mainly distributed in the temperate Northern Hemisphere, except for the Oniscigastridae ...