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Negev widow 的卡通圖
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Negev widow

Latrodectus revivensis
只是會痛會痛，但不會對你造成嚴重傷害。
蜘蛛 咬吃：肉
對人的危險: 疼痛可能會非常痛，但幾乎從來不會很嚴重。

The Negev widow is a venomous spider that lives in the hot, dry deserts of the Negev and the Arava valley. It builds large webs in bushes and brush, where it hunts insects at night. Its bite can cause latrodectism, the illness caused by widow spider venom.1

分布在
Negev desert and the Arava valley (Arabah)1
亞洲
首頁
It lives in arid deserts and builds its webs in bushes and other brush across large open areas of land. It prefers individual plants that are taller in height, such as those from the Zygophyllum and Artemisia groups.1
長度
1,9 cm (0,7 in)1
最高速度
大約 0,92 km/h（0,57 mph）
在陸地上, 粗略估計
牠吃什麼？
It mainly eats terrestrial insects such as beetles and ants, and also eats other arachnids such as scorpions. Prey is caught in silk strands that hang from the capture platform of the web and reach the ground.1
是真的！Negev widow 的照片
Negev widow。照片：Kian。 CC BY 4.0, iNaturalist.

怎麼認出牠

  • Females are very dark brown. Pregnant females are light brown with a pale golden hue.1
  • Males are brown with a patterned abdomen in various shades of brown, and may have grey-white spots and stripes on the abdomen.1
  • Females measure 9 to 19 mm long. Males measure 3 to 7 mm long.1
  • The web has a funnel of tightly woven silk near the top of the bush, often decorated with debris such as bits of plant, sand, rocks and snail shells.1

毒液力量

咬

咬的時候，毒液會從毒牙或牙齒出來。

牠的毒液有什麼作用？

Its venom is the widow type and can cause latrodectism, which is the illness caused by bites from widow spiders. It has been reported that its venom is about as potent as that of Latrodectus tredecimguttatus.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。

牠害怕時會做什麼？

During the day it hides from sight under the densely silk-lined nest area of its web, and it is mainly active at night.1

如果牠咬人

  • 清洗咬傷處，用冰敷袋冰敷止痛。如果很痛、疼痛擴散或傷者覺得不舒服，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。
  • 如果被牠咬了：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？

Negev widow 大約 1,9 cm 長 (0,7 in)一粒米 大約 7 mm (0,3 in)一枚 1 歐元硬幣 大約 2,3 cm (0,9 in)
比你的小指頭還短

Negev widow 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？

值得知道

小知識

1

After mating, the male may escape being eaten by living in the nest with the female for a time, but in other cases the female eats him.1

2

Its web has separate areas for nesting and for catching prey, and it also helps keep the spider cool by providing shade in summer.1

3

Its webs often include a funnel of silk decorated with debris, which may help hide the spider from predators such as birds flying overhead.1

4

The web's silk carries pheromones that help males find female nests.1

5

Its colour darkens after each moult, so the spider becomes darker as it grows older.1

給毒液專家

學名
Latrodectus revivensis
類群
蜘蛛
家人
Theridiidae2
排序
Araneae
各大洲
亞洲
對人的危險
2 / 5: 疼痛3

知識的出處

  1. Latrodectus revivensis (Wikipedia (CC BY-SA 4.0))
  2. Latrodectus revivensis (iNaturalist): 名稱和分類。
  3. Venom Wiki: 危險等級、一般大小和速度估計都是我們自己定的。看看我們是怎麼算出來的： 我們怎麼評估危險.

這一頁的每個知識都有一個數字，指向它的出處。如果我們寫錯了，對不起，我們是動物迷，不是科學期刊。寫信到 [email protected] 告訴我們，我們會修正。

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同一類群的其他動物: 蜘蛛

Mediterranean black widow蜘蛛需要看醫生Diving bell spider蜘蛛只是會痛European yellow sac spider蜘蛛只是會痛Daddy long-legs spider蜘蛛無害Giant huntsman spider蜘蛛無害Hobo spider蜘蛛無害

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