第 0962 號，共 1 402 號

Bald-faced hornet

Dolichovespula maculata

名字的由來： "Bald" comes from "piebald", a word for a black and white pattern, which refers to the white markings on its face.1

只是會痛會痛，但不會對你造成嚴重傷害。

蜜蜂、胡蜂和虎頭蜂

螫吃：每樣都來一點

對人的危險: 疼痛可能會非常痛，但幾乎從來不會很嚴重。

The bald-faced hornet is a wasp with a striking black and white body and a white face. It builds large, hanging paper nests in trees and bushes across North America. Its workers will defend the nest by stinging repeatedly, so it is important to keep well away from its nests.1

分布在

North America, including Canada, the Rocky Mountains, the western coast of the US and most of the eastern US. Most common in the Southeastern US.1

北美洲

首頁

It lives in forested areas and in vegetation in towns and cities. Nests are usually in trees and bushes, but sometimes under rock overhangs or on the sides of buildings, from 0.3 m to 20 m above the ground. People meet it when they walk too close to a nest or when a nest is built near homes.1

長度

1,9 cm (0,7 in)1

最高速度

大約 26 km/h（16 mph）

飛行, 粗略估計

牠吃什麼？

Adults hunt flies, caterpillars, spiders and other insects, which they chew up and feed to the larvae. They also drink flower nectar, eat fruit such as apples, and have been known to scavenge raw meat.1

Bald-faced hornet 的照片 — Bald-faced hornet。照片：Amy Schnebelin。 CC BY 4.0, iNaturalist.

怎麼認出牠

Black and white colouring, unlike other yellowjackets of its genus, which are mostly black and yellow1
A white or "bald" face1
Three white stripes at the end of the body1
Adults average about 19 mm long, larger than other Dolichovespula species1
A large, egg-shaped, grey paper nest that hangs from trees or bushes, up to 58 cm long1

常被誤認為： Other Dolichovespula wasps are mostly black and yellow. The bald-faced hornet's black and white colouring and white face set it apart. It is not one of the true hornets, which belong to the genus Vespa.1

毒液力量

螫

毒液從螫針出來。

牠的毒液有什麼作用？

Workers can squirt venom from the stinger into the eyes of animals that intrude on the nest. The venom makes the eyes water immediately and causes temporary blindness.1

牠對人有多危險？

對人的危險: 疼痛可能會非常痛，但幾乎從來不會很嚴重。

It is aggressive when defending its nest. Workers sting repeatedly, and colonies can have 400 to 700 workers. The risk is highest when people walk too close to a nest or when a nest is built near homes.1

牠害怕時會做什麼？

Workers defend the nest by stinging repeatedly and can squirt venom into the eyes of intruders.1

如果牠螫人

把蜜蜂的螫針刮掉，然後冷敷患處。
如果傷者呼吸困難、臉部或喉嚨腫脹，或覺得快要昏倒，這就是過敏急症：打緊急電話，如果傷者有腎上腺素自動注射筆，就使用它。

一定要先打緊急電話（112、000、911）。這是一般急救指引，不是醫療建議。急救基本知識

注意安全

絕對不要碰、抓或捉弄野生動物，就算是很小的動物，就算牠看起來在睡覺或已經死了也一樣。
給牠空間。如果遇到了，保持冷靜，慢慢往後退，讓牠自己離開。
如果被牠螫了：保持冷靜，保持不動，打緊急電話（112、000、911）或趕快去醫院。記住牠的樣子，有照片會很有幫助。

牠不是想來抓你。牠用毒液來捕捉食物或保護自己，而且牠更想躲起來。更多安全知識

在世界上的哪裡？

非洲亞洲歐洲北美洲南美洲澳洲與大洋洲

牠有多大？

牠有多長？

比你的小指頭還短可以在 15 秒內飛過一整座足球場

Bald-faced hornet 跟「你」比起來有多大？

只是在你的瀏覽器裡做算術。什麼都不會儲存，也不會傳送到任何地方。

牠有多快？

一隻家蠅 大約 7 km/h (4,4 mph)

Bald-faced hornet 大約 26 km/h (16 mph)

一個正在衝刺的人 大約 37 km/h (23 mph)

值得知道

小知識

It can spray venom from its stinger into the eyes of nest intruders, causing temporary blindness.1

Its colony can have 400 to 700 workers, the largest recorded colony size in its genus, Dolichovespula.1

Female bee moths can lay eggs in its nests, and the hatched larvae feed on the eggs, larvae and pupae inside, sometimes destroying large parts of the nest.1

Its nests are made from chewed wood fibres mixed with saliva, which dries into a papery structure.1

A colony lasts about 4 months in Washington, from mid-May to mid-September. Colonies in lower latitudes last longer.1

破解迷思

迷思： It is a true hornet.

真相： It is a yellowjacket wasp. True hornets belong to the genus Vespa.1

給毒液專家

學名: Dolichovespula maculata
類群: 蜜蜂、胡蜂和虎頭蜂
家人: Vespidae2
排序: Hymenoptera
各大洲: 北美洲
寶寶: A single queen starts each new nest in spring, laying eggs that hatch into workers, and later lays eggs that become males and new queens.1
對人的危險: 2 / 5: 疼痛3