第 1015 号，共 1 402 张

Western harvester ant

Pogonomyrmex occidentalis

名字的由来： "Occidentalis" means "of the west", because the ant is characteristic of the interior of the Western United States. "Harvester" refers to its habit of collecting edible seeds.1

只是会疼会疼，但不会对你造成严重伤害。

蚂蚁

蜇伤吃：什么都来一点

对人的危险: 很疼可能真的很疼，但几乎从不严重。

The western harvester ant is a species of ant that lives in the dry deserts and grasslands of the American West and Canada. It gets its name from collecting seeds to eat. It has a painful, venomous sting, and large colonies can damage grazing land.1

生活在

Deserts and arid grasslands of the American West and Canada, at or below 1,900 m (6,300 ft)1

北美洲

首页

Deserts and arid grasslands. Its nest mounds of gravel, surrounded by bare ground, are a conspicuous feature of rangeland, so people are most likely to see them there.1

长度

6 mm (0.2 in)1

最高速度

约 0.15 公里/小时（0.09 英里/小时）

在陆地上, 粗略估计

它吃什么？

Workers harvest seeds and pollen directly from plants and gather fallen seeds. They also gather newly dead insects. Some seeds are stored in chambers within the nest.1

Western harvester ant的照片 — Western harvester ant。照片：Ken-ichi Ueda。 CC BY 4.0, iNaturalist.

怎样认出它

Workers are usually dark red.1
Workers in a mature colony average 6 mm long.1
The nest is topped by an irregularly conical mound of gravel, which can be more than 89 cm (35 in) across.1
The mound is surrounded by an area with no plant life.1

毒液之力

蜇伤

毒液通过蜇刺出来。

它的毒液会造成什么？

The sting is venomous and painful.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。

Its sting is painful. Where there are many colonies, they can cause such loss of grazing plants and seeds that they are a severe ecological and economic burden.1

如果它蜇人

清洗并冷敷蜇伤处。
如果这个人呼吸困难、脸或喉咙肿胀，或感觉要晕倒，这是过敏急症：拨打急救电话。

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。
如果被它蜇了：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？

小到能坐在你的指甲上

Western harvester ant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？

一只花园蜗牛 约 0.05 公里/小时 (0.03 mph)

Western harvester ant 约 0.15 公里/小时 (0.09 mph)

一只陆龟 约 0.3 公里/小时 (0.19 mph)

值得了解

事实

Mounds are surrounded by bare ground, so they do not burn during fires.1

A mature colony can have up to 20,000 workers and one queen, and its nest can reach 5 metres (16 ft) deep.1

Honey ants (Myrmecocystus mexicanus) often nest close to western harvester ant colonies and feed on dead or dying workers.1

A queen mates with 2 to 11 different males, with an average of 6.3.1

Workers usually change their jobs as they age, and they forage towards the ends of their lives. A worker lives for an average of six months.1

In cooler months, workers forage throughout the day. In summer they forage only from 5–11 am and 3–9 pm.1

给毒液专家

学名: Pogonomyrmex occidentalis
类别: 蚂蚁
家人: Formicidae2
排序: Hymenoptera
大洲: 北美洲
宝宝: The queen lays eggs, and many of the eggs in the first batch die. The first workers, called nanitics, are stunted and measure about 2 mm long.1
寿命: 约 30 年1
对人的危险: 2 / 5: 很疼3