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Brown recluse

Loxosceles reclusa

Nomi haqida: The scientific name reclusa means 'recluse', which refers to the spider's shy, hidden way of life.1

Shifokor kerakKamdan-kam halokatli, lekin chaqqanda shifokor kerak.

Oʻrgimchaklar

ChaqadiOvqati: Goʻsht

Odamlar uchun xavf: JiddiyChaqqanda shifokor kerak. Oʻlim holatlari juda kam.

The 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

Yashash joyi

Southern and central United States, from southeastern Nebraska south to central Texas and western Georgia1

Shimoliy Amerika

Bosh sahifa

Brown recluses build irregular webs in dry, undisturbed places such as woodpiles, sheds, closets, garages, plenum spaces and cellars. In homes they seem to favour cardboard. People are usually bitten when the spider is trapped against the skin, for example inside clothes, shoes, towels, bedding or work gloves.1

Uzunlik

6 mm dan 2 cm gacha (0,2 in dan 0,8 in gacha)1

Eng yuqori tezlik

taxminan 0,8 km/soat (0,5 mil/soat)

Quruqlikda, taxminiy

Nima yeydi?

Brown recluses leave their lairs at night to hunt, unlike most web-weaving spiders. If food becomes scarce, they will occasionally, though not habitually, eat other brown recluses.1

Brown recluse surati — Brown recluse. Surat: Rosa Pineda. CC BY-SA 3.0, Wikimedia Commons.

Uni qanday tanish mumkin

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

Koʻpincha adashtiriladi: 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

Zahar quvvati

Chaqadi

Chaqqanda zahar zaharli tishlari yoki tishlari orqali chiqadi.

Uning zahari (chaqsa yoki nish ursa) nima qiladi?

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

Odamlar uchun qanchalik xavfli?

Odamlar uchun xavf: JiddiyChaqqanda shifokor kerak. Oʻlim holatlari juda kam.

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

Qoʻrqqanda nima qiladi?

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

Agar chaqsa

Chaqilgan joyni yuv va ogʻriq uchun ustiga muz xaltasi qoʻy. Agar ogʻriq kuchli boʻlsa, tarqalsa yoki odam oʻzini yomon his qilsa, tibbiy yordam ol.

Har doim avval favqulodda yordam raqamiga qoʻngʻiroq qil (112, 000, 911). Bu birinchi yordam boʻyicha umumiy maslahat, tibbiy maslahat emas. Birinchi yordam asoslari

Xavfsiz boʻl

Hech qachon yovvoyi hayvonga tegma, uni tutma yoki jigʻiga tegma, hatto kichkina boʻlsa ham va hatto uxlayotgan yoki oʻlik koʻrinsa ham.
Unga joy ber. Agar duch kelsang, xotirjam boʻl, sekin orqaga chekin va uni oʻz yoʻliga ketishiga qoʻy.
Agar biri seni chaqsa: xotirjam boʻl, qimirlamay tur, favqulodda yordam raqamiga qoʻngʻiroq qil (112, 000, 911) yoki tezda kasalxonaga yet. U qanday koʻrinishda ekanini eslab qol, surat yordam beradi.

U seni ovlamoqchi emas. Zaharini ovqat tutish yoki oʻzini himoya qilish uchun ishlatadi va yashirinishni ancha afzal koʻradi. Xavfsiz qolish haqida batafsil

Dunyoning qayerida?

Afrika Osiyo Yevropa Shimoliy Amerika Janubiy Amerika Avstraliya va Okeaniya

U qanchalik katta?

U qanchalik uzun?

taxminan qogʻoz qisqichday uzun

Brown recluse SEN bilan solishtirganda qanchalik katta?

Faqat brauzeringdagi hisob-kitob. Hech narsa saqlanmaydi va hech qayerga yuborilmaydi.

U qanchalik tez?

Toshbaqa taxminan 0,3 km/soat (0,19 mph)

Brown recluse taxminan 0,8 km/soat (0,5 mph)

Piyoda ketayotgan odam taxminan 5 km/soat (3,1 mph)

bilish foydali

Faktlar

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

Afsonalarni fosh qiluvchi

Afsona: Brown recluses are common in California and the western United States, where they cause many bites.

Haqiqat: 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

Zahar mutaxassislari uchun

Ilmiy nomi: Loxosceles reclusa
Guruh: Oʻrgimchaklar
Oila: Sicariidae2
Tartib: Araneae
Qitʼalar: Shimoliy Amerika
Chaqaloqlar: 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
Odamlar uchun xavf: 3 / 5: Jiddiy3

Faktlar qayerdan olingan

Brown recluse spider (Wikipedia (CC BY-SA 4.0))
Loxosceles reclusa (iNaturalist): nomlar va tasnif.
Venom Wiki: xavf darajasi, odatiy oʻlcham va taxminiy tezlik bizning oʻz baholarimiz. Ularni qanday hisoblashimizni koʻr: Xavfni qanday baholaymiz.

Bu sahifadagi har bir faktning manbasiga ishora qiluvchi raqami bor. Agar biror narsani xato yozgan boʻlsak, kechir, biz hayvon ixlosmandlarimiz, ilmiy jurnal emas. [email protected] manziliga yoz, tuzatamiz.

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