第 1047 號，共 1 402 號

White-marked tussock moth

Orgyia leucostigma

名字的由來： The genus name Orgyia comes from the ancient Greek word for 'outstretched arms', because at rest the moth stretches its forelegs forward like arms.1

無害對人無害。不用擔心。

毛毛蟲和其他蟲子

會螫人的毛吃：植物

對人的危險: 輕微跟蜜蜂螫差不多或更輕微。對人基本上無害。

The white-marked tussock moth is a moth whose caterpillar is brightly coloured and covered in hairs. It is very common in late summer in eastern North America, and its hairs can cause an allergic reaction in many people who touch them.1

分布在

Eastern North America, west as far as Texas, California and Alberta1

北美洲

首頁

The caterpillars feed on a very wide range of trees, both deciduous and coniferous. They spin cocoons in bark crevices. Outbreaks have been reported on Manitoba maple and elm in urban areas.1

長度

3,5 cm (1,4 in)1

最高速度

大約 0,03 km/h（0,02 mph）

在陸地上, 粗略估計

牠吃什麼？

Young caterpillars skeletonise the surface of leaves. Older caterpillars eat everything except the larger veins.1

White-marked tussock moth 的照片 — White-marked tussock moth。照片：Fyn Kynd。 CC BY-SA 4.0, iNaturalist.

怎麼認出牠

Caterpillar has a bright red head and yellow or white stripes on the body, with a black stripe along the middle of the back1
Caterpillar has bright red glands at the hind end of the back and four white, toothbrush-like tufts standing out from the back1
Caterpillar has a grey-brown hair pencil at its hind end1
Adult males are grey with wavy black lines and a white spot on the forewings1
Adult males have very feathery antennae; females have reduced wings and stay near their cocoon1

常被誤認為： The vapourer (Orgyia antiqua) is similar to the adult male but is a rusty colour rather than grey.1

毒液力量

會螫人的毛

細小的毛或刺毛會斷在皮膚裡，造成刺痛。

牠對人有多危險？

對人的危險: 輕微跟蜜蜂螫差不多或更輕微。對人基本上無害。

Touching the hairs of the caterpillar sets off an allergic reaction in many humans.1

牠害怕時會做什麼？

The caterpillar has bright red defensive glands on the hind end of its back, and its hairs can cause an allergic reaction if touched.1

如果你碰到牠的毛

被會螫人的毛毛蟲毛刺到時：用膠帶把毛黏起來，再清洗皮膚。不要搓揉。
被咬時：清洗並冷敷。如果傷者覺得不舒服或容易流血，要就醫。

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。
如果你碰到牠的毛：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？

大約跟一根迴紋針一樣長比花園蝸牛還慢

White-marked tussock moth 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？

White-marked tussock moth 大約 0,03 km/h (0,02 mph)

一隻花園蝸牛 大約 0,05 km/h (0,03 mph)

一隻陸龜 大約 0,3 km/h (0,19 mph)

值得知道

小知識

The four white tufts on the caterpillar's back may mimic the cocoons of parasitic wasps.1

Large caterpillars are mostly eaten by birds, while small caterpillars mostly disappear while dispersing.1

The fungus Entomophaga maimaiga was introduced to North America to control the spongy moth, and it also infects this species.1

There are two or more generations each year in eastern North America, and the eggs overwinter.1

給毒液專家

學名: Orgyia leucostigma
類群: 毛毛蟲和其他蟲子
家人: Erebidae2
排序: Lepidoptera
各大洲: 北美洲
寶寶: Eggs are laid in a single mass over the female's cocoon and covered in a froth, with up to 300 eggs laid at a time.1
對人的危險: 1 / 5: 輕微3