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Teluk California
Brown recluse
GigitanThe brown recluse is a small spider with a violin-shaped mark on its back. It lives mainly in the central and southern United States, where it hides in dark, quiet places such as woodpiles and sheds. It is one of only two North American spiders with dangerous venom, the other being the black widow.1
Cara mengenalinya
- A dark violin-shaped marking on the top of the front body, with the neck of the violin pointing towards the rear of the spider1
- Typically light to medium brown, though colours range from whitish to dark brown or blackish grey1
- Six eyes arranged in three pairs, while most spiders have eight1
- No obvious patterns on the abdomen or legs, and no spines on the legs1
- Usually 6 to 20 millimetres in body length, but may grow larger1
Sering tertukar dengan: The violin marking is not a reliable identifier, because cellar spiders and pirate spiders can have similar markings. The Mediterranean recluse, an introduced species, is almost indistinguishable from the brown recluse, so many reports of recluses are misidentifications. A spider in the genus Titiotus is the most common spider mistaken for a brown recluse in California, and its bite is considered harmless.1
Kekuatan bisa
Bisanya keluar lewat taring atau gigi saat menggigit.
Apa efek bisanya?
The venom is necrotic, meaning it destroys tissue. It contains a dermonecrotic agent called sphingomyelinase D, which kills the skin around the bite. In some cases the venom spreads through the body within minutes, causing nausea, vomiting, fever, rashes and muscle and joint pain. Rarely, it can burst red blood cells (hemolysis).1
Seberapa berbahaya bagi manusia?
Bahaya bagi manusia: SeriusGigitan perlu ke dokter. Kematian sangat jarang.Most bites cause no skin damage, and the spider is rarely aggressive. In one clinical study, skin necrosis occurred in 37% of diagnosed bites and systemic illness in 14%. Rarely, bites can cause organ damage or death. Most fatalities have been in children under seven or in people with weak immune systems. Children, the elderly and seriously ill people may be more susceptible to systemic effects.1
Apa yang dilakukannya saat takut?
When alarmed, it lowers its body, raises its pedipalps and stands still in a defensive pose. It usually flees, and if caught it may play dead.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?
Seberapa besar dia?
Seberapa panjang dia?
kira-kira sepanjang penjepit kertasSeberapa besar Brown recluse dibandingkan KAMU?
Hanya hitungan di browsermu. Tidak ada yang disimpan atau dikirim ke mana pun.
Seberapa cepat dia?
Fakta
One brown recluse survived for over five seasons in captivity without any food at all.1
In 2001, more than 2,000 brown recluses were removed from a heavily infested home in Kansas, yet the four residents who had lived there for years were never harmed.1
When a leg is lost, the brown recluse does not grow a new one in later moults, unlike the huntsman spider.1
Brown recluses do not balloon, which limits how far they can spread across the landscape.1
Males move around more when hunting than females, which tend to stay near their webs.1
Pembongkar mitos
Mitos: Brown recluses are common in California and the western United States, where they cause many bites.
Faktanya: The brown recluse has not established itself in California or anywhere outside its native range. Many reported bites there are misdiagnosed, and other spiders are often wrongly identified as brown recluses.1
Untuk ahli bisa
- Nama ilmiah
- Loxosceles reclusa
- Kelompok
- Laba-laba
- Keluarga
- Sicariidae2
- Urutan
- Araneae
- Benua
- Amerika Utara
- Anak
- Each female produces several egg sacs between May and July, with about 50 eggs in each sac. The eggs hatch in about one month, and the young take about a year to reach adulthood.1
- Bahaya bagi manusia
- 3 / 5: Serius3
Dari mana faktanya berasal
- Brown recluse spider (Wikipedia (CC BY-SA 4.0))
- Loxosceles reclusa (iNaturalist): nama dan klasifikasi.
- Venom Wiki: tingkat bahaya, ukuran umum, dan perkiraan kecepatan adalah buatan kami. Lihat cara kami menghitungnya: Cara kami menilai bahaya.
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Eyelash viper
Timber rattlesnake
Western diamondback rattlesnake