第 0711 號，共 1 402 號

Wasp spider

Argiope bruennichi

無害對人無害。不用擔心。

咬吃：肉

The wasp spider is an orb-weaver spider with bold yellow, white and black stripes on its abdomen, which look a bit like a wasp. It lives across Central and Northern Europe, parts of Asia and Africa, and the Azores. Its unusual mating habits make it one of the most studied spiders of its kind.1

分布在

Central and Northern Europe, several regions of Asia and Africa, and the Azores1

歐洲, 亞洲, 非洲

首頁

It builds its web most often in long grass, just above ground level.1

長度

2 cm (0,8 in)1

最高速度

大約 0,98 km/h（0,61 mph）

在陸地上, 粗略估計

牠吃什麼？

It catches insects in its spiral web. When prey is trapped, the spider wraps it in silk to immobilise it, then bites it.1

Wasp spider 的照片 — Wasp spider。照片：Анатолий Озерной /Anatoliy Ozernoy。 CC BY-SA 4.0, iNaturalist.

怎麼認出牠

Yellow, white and black markings on the abdomen1
Females have a body length of 14 to 20 mm, and are much larger than males1
A zigzag-shaped decoration, called the stabilimentum, runs through the centre of the orb web1
Builds its spiral orb web at dawn or dusk1

毒液力量

咬

咬的時候，毒液會從毒牙或牙齒出來。

牠的毒液有什麼作用？

The spider injects its prey with a paralysing venom, which stops the prey from moving, and a protein-dissolving enzyme, which breaks down the prey's body tissues.1

牠對人有多危險？

對人的危險: 輕微跟蜜蜂螫差不多或更輕微。對人基本上無害。

如果牠咬人

清洗咬傷處，用冰敷袋冰敷止痛。如果很痛、疼痛擴散或傷者覺得不舒服，要就醫。

一定要先打緊急電話（112、000、911）。這是一般急救指引，不是醫療建議。急救基本知識

注意安全

絕對不要碰、抓或捉弄野生動物，就算是很小的動物，就算牠看起來在睡覺或已經死了也一樣。
給牠空間。如果遇到了，保持冷靜，慢慢往後退，讓牠自己離開。
如果被牠咬了：保持冷靜，保持不動，打緊急電話（112、000、911）或趕快去醫院。記住牠的樣子，有照片會很有幫助。

牠不是想來抓你。牠用毒液來捕捉食物或保護自己，而且牠更想躲起來。更多安全知識

在世界上的哪裡？

非洲亞洲歐洲北美洲南美洲澳洲與大洋洲

牠有多大？

牠有多長？

大約跟一根迴紋針一樣長

Wasp spider 跟「你」比起來有多大？

只是在你的瀏覽器裡做算術。什麼都不會儲存，也不會傳送到任何地方。

牠有多快？

一隻陸龜 大約 0,3 km/h (0,19 mph)

Wasp spider 大約 0,98 km/h (0,61 mph)

一個正在走路的人 大約 5 km/h (3,1 mph)

值得知道

小知識

Females often eat the males after mating, a behaviour called sexual cannibalism. Males improve their chances by waiting near an immature female's web until she moults into adulthood, when her jaws are still soft. In one study, this raised male survival from 20% to 97%.1

Some males block other males from mating with the same female. They do this by losing one of their pedipalps, which allows them to mate only twice.1

Males are small enough to enter a female's web without being detected, which helps them mate.1

Webs with a stabilimentum are damaged less often by birds flying through them, although its exact purpose is not known.1

In summer 2006, researchers found an influx of wasp spiders in the UK. The yellow stripes on this population are more cream-coloured.1