




Heptageniidae
Stream mayflies are tiny insects that live in clean, fresh water. They have delicate wings and can often be seen dancing above streams on sunny days.
生息地: Freshwater streams
The Stream Mayflies has flattened, streamlined bodies adapted for fast-flowing water. They typically have two or three long, thread-like tails and prominent plate-like gills along their abdomen. Colors range from dull browns and greens to mottled patterns, helping them blend with riverbeds.





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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Adult mayflies have no functional mouthparts; they don't eat at all!
Mayfly eyes can be huge and divided, letting them see above and below water!
Some adult mayflies have two pairs of wings, but only use the front pair for flight!
They are the only insect group that molts after developing functional wings!
Stream Mayflies can cling tightly to rocks because they have flattened bodies and strong claws that help them resist swift currents.
Stream Mayflies has feather-like gills along their abdomen that helps them extract oxygen directly from the water while submerged.
Stream Mayflies can shed their skin one last time after they grow wings, which helps them become even better, fully mature fliers.
Stream Mayflies can indicate clean water because their delicate nymphs are highly sensitive to pollution, helping them act as natural monitors.
Nymphs graze on tiny plants and decaying bits, while adults astonishingly do not eat at all!
年齢による違い: Nymphs are active feeders, but adults have non-functional mouths and do not eat during their short lives.
Salmo trutta
A key food source for many fish species.
Hirundo rustica
Adults are caught mid-air by these agile birds.
Diatoma vulgaris
Nymphs scrape and feed on these microscopic algae.
Anax junius
Dragonfly nymphs prey on mayfly nymphs in the water.
社会性動物は組織的な群れで生活し、採餌、防衛、子育てなど、生存に有利になるよう協力し合います。
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。
この特性は、主に昆虫やその他の小型無脊椎動物を食べる生物を示します。
その存在と役割が環境に対して極めて大きな影響を与える種を指します。
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。
同種の標準や平均と比べて著しく小さい種に関する特徴。
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。
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
Always wash your hands after playing near water to stay clean and healthy.
10-30 mm
5-20 mm
30-365 日
10 km/h
Nymphs graze on tiny plants and decaying bits, while adults astonishingly do not eat at all!
Freshwater streams
Grazing
6
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