No. 0637 dari 1 402

Red widow

Latrodectus bishopi

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

Hanya sakitSakit, tetapi tidak akan melukaimu dengan serius.

Laba-laba

GigitanMakan: Daging

Bahaya bagi manusia: MenyakitkanBisa 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

Beranda

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

ukuran dewasa umum

Kecepatan tertinggi

sekitar 0,98 km/jam (0,61 mph)

Di darat, perkiraan kasar

Apa makanannya?

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

Foto Red widow — Red widow. Foto: 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 tertukar 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

Kekuatan bisa

Gigitan

Bisanya keluar lewat taring atau gigi saat menggigit.

Apa efek 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

Seberapa berbahaya bagi manusia?

Bahaya bagi manusia: MenyakitkanBisa 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

Cuci gigitan dan kompres dengan es untuk meredakan nyeri. Cari bantuan medis jika nyerinya kuat, menyebar, atau orangnya merasa tidak enak badan.

Selalu hubungi nomor darurat dulu (112, 000, 911). Ini panduan pertolongan pertama umum, bukan nasihat medis. Dasar-dasar pertolongan pertama

Tetap aman

Jangan pernah menyentuh, menangkap, atau mengganggu hewan liar, walaupun kecil, dan walaupun tampak tidur atau mati.
Beri ia ruang. Jika bertemu, tetap tenang, mundur perlahan, dan biarkan ia pergi.
Jika ia menggigitmu: tetap tenang, jangan bergerak, hubungi nomor darurat (112, 000, 911) atau segera ke rumah sakit. Ingat seperti apa rupanya, foto sangat membantu.

Ia tidak mengincarmu. Ia memakai bisanya untuk menangkap makanan atau melindungi diri, dan ia jauh lebih suka bersembunyi. Lebih lanjut tentang tetap aman

Di mana di dunia?

Afrika Asia Eropa Amerika Utara Amerika Selatan Australia dan Oseania

Seberapa besar dia?

Seberapa panjang dia?

kira-kira sepanjang penjepit kertas

Seberapa besar Red widow dibandingkan KAMU?

Hanya hitungan di browsermu. Tidak ada yang disimpan atau dikirim ke mana pun.

Seberapa cepat dia?

Kura-kura darat sekitar 0,3 km/jam (0,19 mph)

Red widow sekitar 0,98 km/jam (0,61 mph)

Orang yang berjalan sekitar 5 km/jam (3,1 mph)

layak 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

Pembongkar mitos

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

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

Untuk ahli bisa

Nama ilmiah: Latrodectus bishopi
Kelompok: Laba-laba
Keluarga: Theridiidae2
Urutan: Araneae
Benua: Amerika Utara
Anak: The spider stores its egg sacs in its funnel-shaped retreat.1
Bagaimana keadaannya di alam liar: Threatened (in the United States)1
Bahaya bagi manusia: 2 / 5: Menyakitkan3

Dari mana faktanya berasal

Latrodectus bishopi (Wikipedia (CC BY-SA 4.0))
Latrodectus bishopi (iNaturalist): nama dan klasifikasi.
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