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Red widow的卡通图
第 0637 号，共 1 402 张

Red widow

Latrodectus bishopi
名字的由来： The name bishopi honours Marshall B. Bishop, who collected the specimens used to describe the spider.1
只是会疼会疼，但不会对你造成严重伤害。
蜘蛛 咬伤吃：肉
对人的危险: 很疼可能真的很疼，但几乎从不严重。

The red widow is a venomous spider that lives only in Florida, in the dry, sandy scrub where sand pine trees grow. It is a close relative of the black widow, but it rarely comes into contact with people, so it is not often met. Its bright red colours make it easy to recognise.1

生活在
Central and southern Florida, USA1
北美洲
首页
It lives mainly in sand-pine scrub, which is inland areas of dry sand dunes covered in sand pine trees. It builds most of its webs in palmetto bushes, at least 30 cm above the ground. It seldom comes into contact with humans.1
长度
4 cm (1.6 in)3
典型成年个体大小
最高速度
约 0.98 公里/小时（0.61 英里/小时）
在陆地上, 粗略估计
它吃什么？
It is a predator of the insect Hemisphaerota cyanea. It catches prey in its tangled webs, then retreats to a funnel-shaped hideaway below.1
真的！Red widow的照片
Red widow。照片：Stevenklioze00。 CC BY-SA 4.0, Wikimedia Commons.

怎样认出它

  • The cephalothorax (the front part of the body) is red-orange.1
  • The abdomen is black, with yellow rings outlining rows of red spots.1
  • The legs are vermilion red.1
  • The underside does not have the familiar hourglass marking. It usually has one or two small red marks instead.1
  • Females are almost double the size of males.1

常被误认为： It is closely related to the black widow (Latrodectus mactans). The two can be told apart by features of the male and female genitalia, which are examined under magnification. The red widow's male embolus has one fewer loop, and the female's connecting ducts to the spermatheca also have one fewer loop.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？

The red widow is venomous like other members of the genus Latrodectus. In a documented bite, the main effect was a mildly painful throbbing sensation that lasted several hours. The median lethal dose (LD50) of its venom in mice is 2.20 mg/kg, and each spider contains about 0.157 mg of venom.1

它对人有多危险？

对人的危险: 很疼可能真的很疼，但几乎从不严重。

No bites from this spider are recorded in the medical literature. It seldom comes into contact with humans, unlike the black and brown widows, which live close to people. One documented bite caused a mildly painful throbbing that lasted several hours.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？

Red widow 约 4 cm 长 (1.6 in)一个回形针 约 3 cm (1.2 in)一部智能手机 约 15 cm (5.9 in)
差不多和一个回形针一样长

Red widow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？

值得了解

事实

1

A bite was filmed and documented in 2023 by biologist Spencer Hoffman, one of the few recorded bites from this species.1

2

Females are almost double the size of males.1

3

Its predators are thought to include sphecid wasps and the Florida scrub jay.1

4

It lives in sand-pine scrub, a habitat found only in Florida and coastal Alabama.1

谣言粉碎机

谣言： All widow spiders have the hourglass marking on the underside.

真相： The red widow does not have the familiar hourglass marking. It usually has one or two small red marks instead.1

给毒液专家

学名
Latrodectus bishopi
类别
蜘蛛
家人
Theridiidae2
排序
Araneae
大洲
北美洲
宝宝
The spider stores its egg sacs in its funnel-shaped retreat.1
它在野外过得怎么样
Threatened (in the United States)1
对人的危险
2 / 5: 很疼3

事实的来源

  1. Latrodectus bishopi (Wikipedia (CC BY-SA 4.0))
  2. Latrodectus bishopi (iNaturalist): 名称和分类。
  3. Venom Wiki: 危险等级、典型大小和速度估计都是我们自己给出的。看看我们是怎么算的： 我们如何评定危险.

本页的每个事实都有一个编号，指向它的来源。如果我们写错了，抱歉，我们是动物爱好者，不是科学期刊。请写信到 [email protected] 告诉我们，我们会改正。

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同一类别的更多动物: 蜘蛛

Brown recluse蜘蛛需要看医生Southern black widow蜘蛛需要看医生Northern black widow蜘蛛需要看医生Western black widow蜘蛛需要看医生Bold jumping spider蜘蛛无害Golden silk orb-weaver蜘蛛无害

也生活在: 北美洲

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