第 0947 號，共 1 402 號

Eastern carpenter bee

Xylocopa virginica

無害對人無害。不用擔心。

螫吃：植物

The eastern carpenter bee is a large bee that lives across eastern North America, from the eastern United States into southern Canada. It digs its nests into wood, often in buildings and furniture, so people can come across it close to home. Its nests are social, with groups of females sharing one entrance.1

分布在

Eastern North America, east of the Rocky Mountains, from the eastern United States into Canada as far north as southern Ontario and Maine1

北美洲

首頁

It nests in wood, bamboo stems, agave stalks and similar material, but prefers milled pine or cedar lumber. Because it nests in wooden structures, it often nests in constructed furniture or buildings.1

長度

2,2 cm (0,9 in)3

一般成體大小

最高速度

大約 28 km/h（17 mph）

飛行, 粗略估計

牠吃什麼？

It feeds mostly on nectar and pollen. Some long-tubed flowers are pierced at the base with its sharp jaws to reach the nectar, which can bypass pollination.1

Eastern carpenter bee 的照片 — Eastern carpenter bee。照片：Christopher Eliot。 CC BY 4.0, iNaturalist.

怎麼認出牠

Similar in size to a bumblebee1
Glossy, mostly black body with a slight metallic purple tint1
Males have a longer body and a white spot on the face1
Females have a wider head1

常被誤認為： It is similar in size to bumblebees, so size alone is not enough to tell them apart.1

毒液力量

螫

毒液從螫針出來。

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。

牠害怕時會做什麼？

Males guard territories near the nest entrance and chase fast-flying 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？

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

Eastern carpenter bee 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)

Eastern carpenter bee 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

Mating happens only once a year, in the spring, and often includes a bobbing dance by a group of males.1

The bees can recognise each other and show more aggression toward bees from other nests than toward their own nestmates.1

Young bees are white when newly emerged and their wings darken over several days, first to brown and then to a bluish black.1

Dominant females do almost all the work in a nest, including reproduction, foraging and building, while subordinate bees mostly guard the nest.1

Old bees die by early August, around the time that new young bees emerge, so there is little overlap between generations.1

給毒液專家

學名: Xylocopa virginica
類群: 蜜蜂、胡蜂和虎頭蜂
家人: Apidae2
排序: Hymenoptera
各大洲: 北美洲
寶寶: Eggs are laid in July, starting farthest from the exit hole, and only one generation develops each year.1
對人的危險: 1 / 5: 輕微3