Angulate And Roundshouldered Orbweavers

araneus

The angulate and roundshouldered orbweavers of the genus Araneus are remarkable arachnids famous for building classic, geometrically perfect spiral webs. Found globally, these spiders are essential pest controllers in forest and garden ecosystems. Their common names derive from the distinctive humps or 'shoulders' on the upper margins of their large abdomens. Primarily active at twilight and night, they showcase incredible engineering skills, spinning strong silk structures to capture flying insects. Many species within this genus consume their web daily to recycle the proteins before building a new one.

生息地: Typically found in temperate forests, woodlands, gardens, and shrublands, often constructing webs between tree branches or near outdoor light fixtures.

外見

These medium to large spiders are characterized by a bulbous, triangular abdomen with prominent shoulder humps. Their coloration is highly variable, ranging from mottled greys, browns, and tans to striking yellows and oranges, providing excellent camouflage against tree bark. Many species display a leaf-like pattern called a folium on their back. Their legs are long, robust, and heavily spined, often banded with alternating dark and light rings to disrupt their outline. Females are much larger than males, with body lengths typically between 1 and 3 centimeters.

界Animalia門Arthropoda綱Arachnida目Araneae科Araneidae

Angulate And Roundshouldered Orbweavers

カテゴリ

Invertebrate

レア度

Common

危険度

1/5 · 非常に低い

スナップ

最初にスナップしよう！

おもしろい事実

Spider silk from this genus is exceptionally strong, possessing a tensile strength comparable to high-grade steel of the same thickness.

The shoulder humps on angulate orbweavers help disguise them as tree bark nodules or seed pods when they tuck their legs in.

They often eat and rebuild their webs daily, a process that takes only about 30 to 45 minutes of intensive work.

特殊能力

They construct highly organized vertical spiral webs using both non-sticky structural silk and sticky capture silk, optimized to trap flying insects.

They systematically consume their old webs daily, digesting the silk proteins to quickly produce fresh webbing with minimal waste.

They rely on highly sensitive slit sensilla on their legs to detect minute vibrations traveling through the web, allowing them to pinpoint prey instantly.

サイズと詳細

長さ: 1-3 cm
体重: 0.0001-0.005 kg
寿命: 1-2 年
一度の産卵数: 100-800
抱卵期間: 14-30 日

食性と食事

They primarily feed on insects that fly into their spiral webs, which they wrap in silk and paralyze with venom.

主な食物

Flies
Moths
Wasps
Mosquitoes

採餌方法

Ambush

生態系とのつながり

eaten by

Blue Jay

Cyanocitta cristata

Predator that frequently plucks orbweavers directly from their webs.

eaten by

Black-and-Yellow Mud Dauber

Sceliphron caementarium

A wasp that paralyzes orbweavers to provision its mud nests for its larvae.

hunts

House Fly

Musca domestica

Common flying insect pest captured and consumed by the spider.

特徴

このオブジェクトにはまだ特徴バッジが割り当てられていません。

別名

まだ別名はありません。

コレクション

テーマが追加されると、このオブジェクトのコレクションがここに表示されます。

安全性

危険度

1/5 · 非常に低い

まだ特別な安全上の注意はありません。

よくある質問

Angulate And Roundshouldered Orbweaversを見分けるには？

Angulate And Roundshouldered Orbweaversを識別する最も簡単な方法は、Snappit自然識別アプリを使用することです。

Angulate And Roundshouldered Orbweaversの長さは何ですか？

1-3 cm

Angulate And Roundshouldered Orbweaversの体重は何ですか？

0.0001-0.005 kg

Angulate And Roundshouldered Orbweaversの寿命は何ですか？

1-2 年

Angulate And Roundshouldered Orbweaversは何を食べますか？

They primarily feed on insects that fly into their spiral webs, which they wrap in silk and paralyze with venom.

Angulate And Roundshouldered Orbweaversは通常どこに生息していますか？

Typically found in temperate forests, woodlands, gardens, and shrublands, often constructing webs between tree branches or near outdoor light fixtures.

Angulate And Roundshouldered Orbweaversはどのように狩りをしますか？

Ambush

Angulate And Roundshouldered Orbweaversの一度の産卵数は何ですか？

100-800