第 0727 號，共 1 402 號

Tube web spider

Segestria florentina

名字的由來： The name green-fanged refers to the striking green shine of its fangs (chelicerae), which reflect green light.1

只是會痛會痛，但不會對你造成嚴重傷害。

蜘蛛

咬吃：肉

對人的危險: 疼痛可能會非常痛，但幾乎從來不會很嚴重。

The tube web spider is a dark spider that builds a tube-shaped web in cracks in walls and buildings. It began in the Mediterranean region but has spread to many towns in southern Britain and other parts of the world. Its bite is reported to be very painful, so it is worth knowing what it looks like.1

分布在

Originally the Mediterranean region as far east as Georgia; now many towns in southern Britain, and also Argentina, Australia, several Atlantic islands and Limerick in Ireland1

歐洲

首頁

It spins its tube web often in cracks of buildings and prefers south-facing walls, especially brick structures. It has been found in towns, cathedrals and an abbey, including Exeter Cathedral and Westminster Abbey.1

長度

2,2 cm (0,9 in)1

最高速度

大約 1 km/h（0,62 mph）

在陸地上, 粗略估計

牠吃什麼？

It waits in the entrance of its tube and touches the silk lines with its front legs. When prey such as nocturnal moths and cockroaches triggers the lines, it is caught, and the spider pulls it into the tube to eat. Bees and wasps are always bitten at the head end, so the sting faces away from the spider.1

Tube web spider 的照片 — Tube web spider。照片：Lmbuga Commons。 CC BY-SA 4.0, iNaturalist.

怎麼認出牠

Adults are a uniform black, sometimes with a green shine, especially on the fangs.1
Young spiders (subadults) have a greyish abdomen with a marking.1
It makes a tubular web with six or more silk lines radiating out from the entrance.1
Adults are seen from June to November.1
Females can reach a body length of 22 mm, and males up to 15 mm.1

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 venom contains two neurotoxins, which attack the nerves, and one insecticide. The venom reduces the rate and amount of sodium inactivation, a process in nerve cells. The bite is reported to feel like a deep injection, and the pain can last for several hours.1

牠對人有多危險？

對人的危險: 疼痛可能會非常痛，但幾乎從來不會很嚴重。

The bite is reported to be extremely painful, but it is also said to feel like a bee sting, which places it at 2 on the Schmidt sting pain index. The bite has no lasting effects.1

牠害怕時會做什麼？

When disturbed while feeding, it retreats further into its tube.1

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可以在 360 秒內跑完 100 公尺（最快的人類需要 9.6 秒）

Tube web 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)

Tube web spider 大約 1 km/h (0,62 mph)

一個正在走路的人 大約 5 km/h (3,1 mph)

值得知道

小知識

A population in Westminster Abbey has been proposed as a new subspecies, because its fangs are a brighter green and its members are significantly smaller than other European populations.1

Specimens have been found in Exeter Cathedral as far back as 1890.1

Females lay eggs in the bricks of south-facing structures during winter, so a female seen in September or October may already have laid eggs for the next spring.1

It is the largest European segestriid spider.1

In Britain it was probably introduced via seaports, with records going back at least to 1845.1

給毒液專家

學名: Segestria florentina
類群: 蜘蛛
家人: Segestriidae2
排序: Araneae
各大洲: 歐洲
寶寶: The female lays her eggs inside the tube web. Sometimes she dies after the spiderlings hatch, and they may eat their mother.1
對人的危險: 2 / 5: 疼痛3