第 1390 号，共 1 402 张

Monarch butterfly

Danaus plexippus

名字的由来： The name 'monarch' was suggested in 1874 by entomologist Samuel Hubbard Scudder, who pointed to its large size and the idea that it 'rules a vast domain'.1

无害对人无害。不用担心。

其他有毒动物

吃了有毒吃：植物碰了或吃了有毒，不注射毒液

对人的危险: 轻微像被蜜蜂蜇一下或更轻。对人基本无害。

The monarch is one of the best-known butterflies in North America, with a black, orange and white pattern that is easy to spot. Its wings are poisonous if eaten, so it is a warning to predators. Some monarchs make a huge southward journey each autumn, covering thousands of miles.1

有毒还是有毒液？有毒液的动物通过咬或蜇注入毒液。有毒的动物是碰了或吃了会受害。这一种是碰了或吃了有害的。

生活在

Most of North America, with populations further south in the Americas, and in parts of Europe, Oceania and Southeast Asia.1

北美洲, 南美洲

首页

Monarchs are found across a wide range of places, and their caterpillars depend on milkweed plants. Eggs are laid on milkweed, and caterpillars often wander up to 10 metres from their plant to find a place to pupate.1

长度

8.9 cm到10 cm (3.5 in到4 in)1

最高速度

约 9 公里/小时（5.6 英里/小时）

飞行, 粗略估计

它吃什么？

Caterpillars feed on milkweed leaves, cutting the leaf edges as they grow.1

Monarch butterfly的照片 — Monarch butterfly。照片：Christine Young。 CC BY 4.0, iNaturalist.

怎样认出它

Black, orange and white wing pattern that is easy to recognise.1
Wingspan of 8.9 to 10.2 cm.1
Caterpillars are pale green or grey-white when very young, with a large black head.1
Older caterpillars have white, yellow and black bands, plus black tentacles.1

常被误认为： The viceroy butterfly is similar in colour and pattern but is much smaller. It also has an extra black stripe across each hindwing.1

毒力

吃了有毒

只有被什么东西吃掉时才有害。

它对人有多危险？

对人的危险: 轻微像被蜜蜂蜇一下或更轻。对人基本无害。

它害怕时会做什么？

Its bright black, orange and white pattern serves as a warning coloration to predators, and the viceroy butterfly copies it.1

如果有人碰了或吃了它

如果有人吃了它，或吃后出现症状：立刻拨打急救电话或中毒急救中心。

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。
如果你碰了或吃了它：不要揉眼睛或嘴巴，洗手并就医。

它不是冲着你来的。它的毒只是为了不被吃掉。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？

和 3 块玩具积木排成一排一样长42 秒就能飞过一整个足球场

Monarch butterfly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？

一只家蝇 约 7 公里/小时 (4.4 mph)

Monarch butterfly 约 9 公里/小时 (5.6 mph)

一个全力冲刺的人 约 37 公里/小时 (23 mph)

值得了解

事实

Eastern North American monarchs migrate south each autumn to Florida and Mexico, covering thousands of miles, and return north in spring over several generations.1

A female monarch can lay eggs weighing up to her own body mass in total, even though each egg is only about 1/1000 of her mass.1

Fewer than 10% of monarch eggs and caterpillars commonly survive to adulthood, because of weather, predators, parasites and disease.1

Monarchs can develop from egg to adult in as little as 25 days in warm summer weather, but may take as long as seven weeks in cool spring conditions.1

A monarch caterpillar can travel up to 10 metres from its milkweed plant to find a safe place to pupate.1

The monarch was the first butterfly to have its genome sequenced, a draft of 273 million base pairs containing 16,866 protein-coding genes.1

谣言粉碎机

谣言： Monarch butterflies are genetically modified organisms.

真相： A 2015 study found genes from wasp bracoviruses in the North American monarch's genome. This led to articles calling monarchs genetically modified, but they are not genetically modified in the usual sense.1

给毒液专家

学名: Danaus plexippus
类别: 其他有毒动物
家人: Nymphalidae2
排序: Lepidoptera
大洲: 北美洲, 南美洲
宝宝: Females lay eggs singly, usually on the underside of young milkweed leaves, with 300 to 500 eggs over two to five weeks, and up to 1,180 eggs in total.1
对人的危险: 1 / 5: 轻微3