




Hexagenia
Giant Mayflies are fascinating insects that spend most of their lives underwater as nymphs. When they grow up, they come out of the water, fly around for a short time, and then lay eggs to start the cycle again!
生息地: Wetlands
The Giant Mayflies has a soft, robust body, typically yellowish-brown to reddish-brown, often larger than other mayflies. They feature two or three long, delicate tails and large, clear, triangular wings with prominent veins, sometimes with an amber tint.





カテゴリ
昆虫レア度
Common
危険度
1/5 · 非常に低い
スナップ
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A swarm of these mayflies can be so dense it shows up on weather radar!
Adult Giant Mayflies have no stomach or digestive system at all!
Mayflies are among the most ancient groups of winged insects on Earth!
Their presence indicates very clean, healthy freshwater environments!
Giant Mayflies can live underwater for up to two years as nymphs, breathing through feathery gills that help them absorb oxygen from the water.
Giant Mayflies has a unique 'subimago' stage, allowing them to molt one last time after developing wings, helping them become fully mature adults.
Giant Mayflies can emerge in massive numbers almost simultaneously, creating huge swarms that help them find mates quickly and overwhelm predators.
Giant Mayflies has non-functional mouthparts as adults, meaning they don't eat at all, which helps them focus entirely on reproduction.
Young mayflies filter tiny food particles from water, while adults do not eat at all!
年齢による違い: Larvae feed on detritus and algae, but adults have vestigial mouthparts and do not consume food, focusing solely on reproduction.
Perca flavescens
Both nymphs and adults are a key food source.
Sterna hirundo
Adult swarms provide an abundant aerial meal.
Chlorella vulgaris
Larvae filter these microscopic plants from water.
単独行動をとる動物は、繁殖や子育ての時を除き、生涯のほとんどを1匹で生活します。
ろ過食動物は、水中に浮遊する食べ物の粒や小さな生物をこし取ることで栄養を得ます。
食事のすべて、または大部分が植物で構成されている生物が持つ特徴です。
この生息地特性は、湿地(年間を通して、または季節的に水に浸かっている沼や湿原などの土地)で見られる種を示します。
昼行性の動物は主に日中に活動し、通常は夜間に休息や睡眠をとります。
淡水の生息地には、川、湖、池、湿地などの塩分を含まない水辺の環境が含まれ、多くの生物にとって不可欠な場所です。
「巨大」とは、その種や分類の平均よりも著しくサイズが大きい生物や物体を指します。
花粉を運び、植物の受粉と繁殖を助ける生物のことを指します。
まだ別名はありません。
危険度
1/5 · 非常に低い
Giant Mayflies are harmless, but it's best to watch them from a distance and not touch them.
40-70 mm
25-30 mm
1-730 日
5 km/h
Young mayflies filter tiny food particles from water, while adults do not eat at all!
Wetlands
Filter Feeding
6
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