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Red widow

Latrodectus bishopi

Tentang nama: The name bishopi honours Marshall B. Bishop, who collected the specimens used to describe the spider.1

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

Labah-labah

GigitanMakan: Daging

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

The red widow is a venomous spider that lives only in Florida, in the dry, sandy scrub where sand pine trees grow. It is a close relative of the black widow, but it rarely comes into contact with people, so it is not often met. Its bright red colours make it easy to recognise.1

Hidup di

Central and southern Florida, USA1

Amerika Utara

Laman utama

It lives mainly in sand-pine scrub, which is inland areas of dry sand dunes covered in sand pine trees. It builds most of its webs in palmetto bushes, at least 30 cm above the ground. It seldom comes into contact with humans.1

Panjang

4 cm (1.6 in)3

saiz dewasa biasa

Kelajuan maksimum

kira-kira 0.98 km/j (0.61 mph)

Di darat, anggaran kasar

Apa yang ia makan?

It is a predator of the insect Hemisphaerota cyanea. It catches prey in its tangled webs, then retreats to a funnel-shaped hideaway below.1

Gambar Red widow — Red widow. Gambar: Stevenklioze00. CC BY-SA 4.0, Wikimedia Commons.

Cara mengenalinya

The cephalothorax (the front part of the body) is red-orange.1
The abdomen is black, with yellow rings outlining rows of red spots.1
The legs are vermilion red.1
The underside does not have the familiar hourglass marking. It usually has one or two small red marks instead.1
Females are almost double the size of males.1

Sering dikelirukan dengan: It is closely related to the black widow (Latrodectus mactans). The two can be told apart by features of the male and female genitalia, which are examined under magnification. The red widow's male embolus has one fewer loop, and the female's connecting ducts to the spermatheca also have one fewer loop.1

Kuasa bisa

Gigitan

Bisa keluar melalui taring atau giginya apabila ia menggigit.

Apa kesan bisanya?

The red widow is venomous like other members of the genus Latrodectus. In a documented bite, the main effect was a mildly painful throbbing sensation that lasted several hours. The median lethal dose (LD50) of its venom in mice is 2.20 mg/kg, and each spider contains about 0.157 mg of venom.1

Berapa bahaya ia kepada manusia?

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

No bites from this spider are recorded in the medical literature. It seldom comes into contact with humans, unlike the black and brown widows, which live close to people. One documented bite caused a mildly painful throbbing that lasted several hours.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 Red 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)

Red widow kira-kira 0.98 km/j (0.61 mph)

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

berguna untuk diketahui

Fakta

A bite was filmed and documented in 2023 by biologist Spencer Hoffman, one of the few recorded bites from this species.1

Females are almost double the size of males.1

Its predators are thought to include sphecid wasps and the Florida scrub jay.1

It lives in sand-pine scrub, a habitat found only in Florida and coastal Alabama.1

Pemecah mitos

Mitos: All widow spiders have the hourglass marking on the underside.

Hakikat: The red widow does not have the familiar hourglass marking. It usually has one or two small red marks instead.1

Untuk pakar bisa

Nama saintifik: Latrodectus bishopi
Kumpulan: Labah-labah
Keluarga: Theridiidae2
Susunan: Araneae
Benua-benua: Amerika Utara
Anak: The spider stores its egg sacs in its funnel-shaped retreat.1
Keadaannya di alam liar: Threatened (in the United States)1
Bahaya kepada manusia: 2 / 5: Menyakitkan3

Dari mana fakta datang

Latrodectus bishopi (Wikipedia (CC BY-SA 4.0))
Latrodectus bishopi (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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