第 0991 号，共 1 402 张

Blue mud dauber

Chalybion californicum

无害对人无害。不用担心。

蜇伤吃：什么都来一点

The blue mud dauber is a metallic blue wasp that lives across much of North America. It is known for hunting black widow spiders to feed its young. It is not normally aggressive towards people.1

生活在

Northern Mexico to southern Canada, including most of the United States. Also introduced to Hawaii, Bermuda and parts of Europe.1

北美洲

首页

Females build their own nests, but often refurbish nests left by other wasps and bees, especially those of Sceliphron caementarium. They prefer to hunt prey on the ground or under rocks.1

长度

2 cm (0.8 in)3

典型成年个体大小

最高速度

约 27 公里/小时（17 英里/小时）

飞行, 粗略估计

它吃什么？

Adults feed on the nectar of flowers, which powers their flight. Their larvae are fed spiders, often Latrodectus mactans (black widow spiders).1

Blue mud dauber的照片 — Blue mud dauber。照片：(c) Nell Cant, some rights reserved (CC BY)。 CC BY 4.0, Wikimedia Commons.

怎样认出它

Metallic blue colour1
Similar in shape and colour to the steel-blue cricket hunter (Chlorion aerarium)1
Males do not have an ovipositor, so they cannot sting1

常被误认为： The steel-blue cricket hunter (Chlorion aerarium) is similar in both shape and colour.1

毒液之力

蜇伤

毒液通过蜇刺出来。

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。

This wasp is not normally aggressive towards humans.1

如果它蜇人

刮掉蜜蜂的蜇针，冷敷患处。
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，如果他们有肾上腺素笔就使用。

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？

差不多和一个回形针一样长14 秒就能飞过一整个足球场

Blue mud dauber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)

Blue mud dauber 约 27 公里/小时 (17 mph)

一个全力冲刺的人 约 37 公里/小时 (23 mph)

值得了解

事实

This species is most famous for preying on black widow spiders.1

Females often take over nests abandoned by other wasps and bees, removing the spiders and larva already there and replacing them with their own egg and fresh spiders.1

Adults pollinate some common wildflowers, including Berberis vulgaris, Daucus carota and Zizia aurea.1

It has spread beyond its native range to places such as Hawaii, Bermuda and Croatia.1

It can produce multiple generations in a single year.1

给毒液专家

学名: Chalybion californicum
类别: 蜜蜂、胡蜂和大黄蜂
家人: Sphecidae2
排序: Hymenoptera
大洲: 北美洲
宝宝: Females lay an egg in a nest and provide freshly caught spiders as food for the young. They go through multiple generations in a year.1
对人的危险: 1 / 5: 轻微3