第 0639 号，共 1 402 张

West coast button spider

Latrodectus indistinctus

需要看医生很少致命，但被咬了要去看医生。

咬伤吃：肉

The West Coast button spider is a small black spider that lives in Namibia and South Africa. It is one of the black button or black widow spiders, and its venom acts on the nerves. Knowing what it looks like helps people stay safe in its dry habitats.1

生活在

Namibia and South Africa, including the Northern Cape and Western Cape provinces1

非洲

首页

It builds three-dimensional webs in dark corners. Its nest is low down, at the base of small bushes, in tufts of grass or stubble, or among heaps of loose debris, often on the ground. Unlike L. geometricus, no nest has been recorded near a building. It has also been recorded from pistachio orchards.1

长度

1.6 cm (0.6 in)1

最高速度

约 0.92 公里/小时（0.57 英里/小时）

在陆地上, 粗略估计

它吃什么？

Its prey includes insects and other arthropods. Egg sacs are usually hung in bush vegetation, where prey is available nearby.1

West coast button spider的照片 — West coast button spider。照片：Wessel Pretorius。 CC BY-SA 4.0, iNaturalist.

怎样认出它

Females are 7 to 16 mm long and males are 2.5 to 5 mm long, so females are much larger.1
Most adults keep short red stripes radiating upward from the tip of the upper abdomen.1
It is not aggressive by nature.1

毒液之力

咬伤

它咬的时候，毒液通过毒牙或牙齿出来。

它的毒液会造成什么？

This spider has neurotoxins called latrotoxins, which act on nerve endings. Within 15 minutes of a bite there is intense pain, a burning sensation and swelling. Intense muscle pain and cramps can develop about an hour later, along with anxiety, slurred speech, nausea, headache, sweating and fever.1

它对人有多危险？

对人的危险: 严重被咬了要去看医生。死亡非常罕见。

Rapid pulse, raised blood pressure, chest tightness and difficulty breathing are important warning signs. These are usually more dangerous for children and elderly people with heart or lung disease.1

它害怕时会做什么？

When it feels threatened, it drops to the ground and plays dead.1

如果它咬人

清洗咬伤处，用冰袋冷敷止痛。如果疼得厉害、疼痛扩散或感到不适，就去看医生。

一定先拨打你的急救电话（112、000、911）。这里是一般急救指导，不是医疗建议。急救基础

注意安全

永远不要摸、抓或逗弄野生动物，即使是很小的，即使它看起来在睡觉或已经死了。
给它留出空间。如果遇到它，保持冷静，慢慢后退，让它走自己的路。
如果被它咬了：保持冷静，保持不动，拨打你的急救电话（112、000、911）或尽快去医院。记住它长什么样，拍张照片会有帮助。

它不是冲着你来的。它用毒液捕猎或保护自己，而且它更愿意躲起来。更多安全知识

在世界哪里？

非洲亚洲欧洲北美洲南美洲澳大利亚和大洋洲

它有多大？

它有多长？

比你的小指还短

West coast button spider和你比起来有多大？

只是在你的浏览器里算一算。什么都不会被保存或发送到任何地方。

它有多快？

一只陆龟 约 0.3 公里/小时 (0.19 mph)

West coast button spider 约 0.92 公里/小时 (0.57 mph)

一个在走路的人 约 5 公里/小时 (3.1 mph)

值得了解

事实

Females are much larger than males, at 7 to 16 mm compared with 2.5 to 5 mm.1

It has been found in desert, grassland and fynbos habitats.1

给毒液专家

学名: Latrodectus indistinctus
类别: 蜘蛛
家人: Theridiidae2
排序: Araneae
大洲: 非洲
宝宝: Eggs are kept in egg sacs hung in bush vegetation. Females will occasionally attack to defend their eggs.1
它在野外过得怎么样: Least Concern1
对人的危险: 3 / 5: 严重3