第 0992 號，共 1 402 號

Emerald cockroach wasp

Ampulex compressa

無害對人無害。不用擔心。

螫吃：昆蟲

The emerald cockroach wasp is a solitary wasp with a shiny metallic blue-green body. It lives in tropical parts of Africa, South Asia, Southeast Asia and the Pacific islands, and it has an unusual way of raising its young. It uses a cockroach as food and a home for its larvae.1

分布在

Tropical Africa, South Asia, Southeast Asia and Pacific islands; also Hawaii and Brazil (São Paulo and Rio de Janeiro states)1

亞洲, 非洲

首頁

It is found in warm, tropical places and is more common in the warm seasons. Females dig burrows, where they bring cockroaches to lay their eggs.1

長度

2,2 cm (0,9 in)1

最高速度

大約 28 km/h（17 mph）

飛行, 粗略估計

牠吃什麼？

Adult wasps feed on fluid (haemolymph) that oozes from the cockroach they have stung. Their larvae feed on the cockroach from the inside.1

Emerald cockroach wasp 的照片 — Emerald cockroach wasp。照片：Sharadpunita。 CC BY-SA 3.0, Wikimedia Commons.

怎麼認出牠

Metallic blue-green body1
Thighs of the second and third pairs of legs are red1
Female is about 22 mm long1
Male is smaller and has no stinger1

毒液力量

螫

毒液從螫針出來。

牠的毒液有什麼作用？

The venom works on the cockroach's nervous system. The first sting causes short paralysis of the front legs, and the second sting, into the brain, stops the cockroach from escaping and makes it groom and move sluggishly. The effect lasts for about 72 hours.1

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。

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？

大約跟一根迴紋針一樣長可以在 14 秒內飛過一整座足球場

Emerald cockroach wasp 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)

Emerald cockroach wasp 大約 28 km/h (17 mph)

一個正在衝刺的人 大約 37 km/h (23 mph)

值得知道

小知識

The wasp stings a cockroach twice, aiming for specific nerve clusters in its body and head, rather than just injecting venom at random.1

After stinging, the wasp leads the cockroach to its burrow by pulling on one of its antennae, like a leash, even though the wasp is too small to carry it.1

The stung cockroach can still walk, swim and flip over, but it loses its normal urge to escape.1

The larva eats the cockroach's internal organs over about 8 days, and the adult wasp later emerges from the dead cockroach's body.1

A single mating is enough for a female to parasitise several dozen cockroaches.1

The wasp was brought to Hawaii in 1941 as a biological control, but this did not work well because of the wasp's territorial behaviour and the small scale on which it hunts.1

給毒液專家

學名: Ampulex compressa
類群: 蜜蜂、胡蜂和虎頭蜂
家人: Ampulicidae2
排序: Hymenoptera
各大洲: 亞洲, 非洲
寶寶: The female lays one or two white eggs, about 2 mm long, between the legs of a stung cockroach. Each egg hatches after about 3 days.1
對人的危險: 1 / 5: 輕微3