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Brown widow

Latrodectus geometricus

Tentang nama: The name comes from the geometric pattern on the top of its abdomen (its rear body section).1

Sakit sahajaIa sakit, tetapi tidak akan mencederakan kamu dengan serius.

Labah-labah

Gigitan

Bahaya kepada manusia: MenyakitkanIa boleh jadi sangat sakit, tetapi hampir tidak pernah serius.

The brown widow is a spider in the widow family, a close cousin of the black widow. It lives in many parts of the world, often around houses and buildings. Its bite is painful but usually not dangerous.1

Hidup di

Originally Africa; now found across the Americas, Asia, Australia, Papua New Guinea, Hawaii, Poland and the Middle East1

Afrika

Laman utama

It builds untidy three-dimensional webs in dark corners, in vegetation and around buildings. It is commonly found around houses, and in tropical areas it is usually found around buildings. It also lives in crops such as avocado, citrus, cotton, maize, vineyards and pistachio.1

Panjang

3.5 cm (1.4 in)3

saiz dewasa biasa

Kelajuan maksimum

kira-kira 0.92 km/j (0.57 mph)

Di darat, anggaran kasar

Gambar Brown widow — Brown widow. Gambar: Jesse Rorabaugh. CC BY 4.0, iNaturalist.

Cara mengenalinya

Black and white geometric pattern on the top of the abdomen1
Usually a bright orange or yellowish hourglass marking on the underside of the abdomen1
Body colour ranges from tan and dark brown to black, with shades of grey also possible1
Stripes on the legs1
Egg sacs are spiky, like a sandspur, and sometimes described as tufted, fluffy or spiky1

Sering dikelirukan dengan: The black widow is slightly larger and darker, and has a red hourglass on the underside. The brown widow is lighter, has an orange or yellow hourglass, and has a black and white pattern on top of the abdomen that the black widow does not have. In southern Africa, the brown widow's relative L. rhodesiensis, native to Zimbabwe, is also called a brown button spider.1

Kuasa bisa

Gigitan

Bisa keluar melalui taring atau giginya apabila ia menggigit.

Apa kesan bisanya?

Like all widow spiders, the brown widow has a neurotoxic venom, which attacks the nerves. It causes latrodectism, a set of very unpleasant symptoms. The effects are usually confined to the bite area and the tissue around it.1

Berapa bahaya ia kepada manusia?

Bahaya kepada manusia: MenyakitkanIa boleh jadi sangat sakit, tetapi hampir tidak pernah serius.

Brown widow bites are usually not very dangerous, and are much less dangerous than black widow bites. The spider cannot deliver as much venom as a black widow, so its bites are considered minor. They are painful.1

Jika ia menggigit

Basuh tempat gigitan dan letakkan pek ais untuk menghilangkan sakit. Dapatkan bantuan perubatan jika sakitnya kuat, merebak atau orang itu berasa tidak sihat.

Sentiasa hubungi nombor kecemasan dahulu (112, 000, 911). Ini panduan pertolongan cemas umum, bukan nasihat perubatan. Asas pertolongan cemas

Kekal selamat

Jangan sesekali sentuh, tangkap atau usik haiwan liar, walaupun yang kecil, dan walaupun ia nampak tidur atau mati.
Beri ia ruang. Jika kamu terjumpa, bertenang, undur perlahan-lahan dan biarkan ia pergi.
Jika ia menggigit kamu: bertenang, jangan bergerak, hubungi nombor kecemasan (112, 000, 911) atau pergi ke hospital dengan segera. Ingat rupanya, gambar boleh membantu.

Ia bukan mahu memburu kamu. Ia guna bisanya untuk menangkap makanan atau melindungi diri, dan ia lebih suka bersembunyi. Lagi tentang keselamatan

Di mana di dunia?

Afrika Asia Eropah Amerika Utara Amerika Selatan Australia & Oceania

Berapa besar ia?

Berapa panjang ia?

lebih kurang sepanjang klip kertas

Berapa besar Brown widow berbanding KAMU?

Hanya matematik dalam pelayar kamu. Tiada apa yang disimpan atau dihantar ke mana-mana.

Berapa laju ia?

Kura-kura darat kira-kira 0.3 km/j (0.19 mph)

Brown widow kira-kira 0.92 km/j (0.57 mph)

Orang berjalan kira-kira 5 km/j (3.1 mph)

berguna untuk diketahui

Fakta

In Southern California, researchers suggest the brown widow may be pushing black widows out of the area by competing and fighting for territory.1

Its egg sacs are so spiky that they are easy to tell apart from those of most other spiders.1

A female can make up to 20 egg sacs over her lifetime, with 120 to 150 eggs in each.1

Brown widows are preyed upon by wasps, including blue mud-dauber wasps and digger wasps.1

Pemecah mitos

Mitos: The brown widow is as dangerous as the black widow.

Hakikat: Brown widow bites are usually not very dangerous and are much less dangerous than black widow bites.1

Untuk pakar bisa

Nama saintifik: Latrodectus geometricus
Kumpulan: Labah-labah
Keluarga: Theridiidae2
Susunan: Araneae
Benua-benua: Afrika
Anak: Eggs hatch in about 20 days. Each female lays about 120 to 150 eggs per sac and can make up to 20 sacs in her lifetime.1
Keadaannya di alam liar: Least Concern (South African National Biodiversity Institute)1
Bahaya kepada manusia: 2 / 5: Menyakitkan3

Dari mana fakta datang

Latrodectus geometricus (Wikipedia (CC BY-SA 4.0))
Latrodectus geometricus (iNaturalist): nama dan pengelasan.
Venom Wiki: tahap bahaya, saiz biasa dan anggaran kelajuan adalah penilaian kami sendiri. Lihat cara kami mengiranya: Cara kami menilai bahaya.

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