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Brazilian wandering spider

Phoneutria nigriventer

Anaweza kuuaAnaweza kukuua bila matibabu. Akikuuma, tafuta msaada haraka.

KuumwaHula: Nyama

Hatari kwa watu: Hatari sanaAnaweza kumuua mtu asiyepata matibabu.

The Brazilian wandering spider is a large, hairy spider whose bite is medically significant. It lives in parts of South America, including Brazil, Uruguay, Paraguay and Argentina, and it is often found near homes. Its bite can cause severe pain and dangerous effects on the heart and breathing.1

Anaishi

Southern Cone of South America: Brazil, Uruguay, Paraguay and Argentina1

Amerika Kusini

Nyumbani

It lives in banana trees, foliage and urban areas, and is mainly found inside houses. During the day it hides under logs or in crevices.1

Urefu

5 cm (2 in)1

Kasi ya juu

takriban km 2.1 kwa saa (maili 1.3 kwa saa)

Nchi kavu, makadirio

Hula nini?

It eats crickets, katydids, mantids, tree frogs, lizards and bats. It hunts by ambush at night rather than using a web.1

Picha ya Brazilian wandering spider — Brazilian wandering spider. Picha: Techuser. CC BY-SA 4.0, iNaturalist.

Jinsi ya kumtambua

A large spider with a body up to 5 cm long1
Legs can span up to 15 cm in larger individuals1
Body covered in thick brown hair1
Hunts at night and catches prey by ambush rather than in a web1
When threatened, raises its first two pairs of legs as a warning1

Nguvu ya sumu

Kuumwa

Sumu hutoka kupitia meno yake ya sumu au meno anapouma.

Sumu yake hufanya nini?

The venom contains neurotoxic peptides, which attack the nerves. These act as calcium channel blockers that disrupt how nerve cells send signals. The venom also causes intense pain and inflammation. At deadly concentrations it causes loss of muscle control, breathing problems, paralysis and eventual asphyxiation. Other symptoms reported include priapism, a rapid heartbeat, irregular heartbeat, cardiogenic shock, fluid in the lungs and convulsions.1

Ana hatari gani kwa watu?

Hatari kwa watu: Hatari sanaAnaweza kumuua mtu asiyepata matibabu.

Its bite can be life-threatening, and several deaths are documented. Between 1925 and 1945, 415 bites by this species were recorded, and 400 of those people needed antivenom. The spider can give a dry bite with no venom, or a bite with only a small dose.1

Habari njema: madaktari wana dawa (ya kuzuia sumu) au matibabu ya hili.1

Hufanya nini akiogopa?

When threatened, it raises its first two pairs of legs as a warning.1

Akiuma

In the documented cases, victims were treated in hospital with anaesthetics, tetanus prophylaxis, antivenom and fluid replacement. Recovery could take about 36 hours after a bite.1
Osha jeraha na uweke barafu kupunguza maumivu. Tafuta msaada wa kitabibu kama maumivu ni makali, yanasambaa au mtu anajisikia vibaya.

Daima piga namba ya dharura kwanza (112, 000, 911). Huu ni mwongozo wa jumla wa huduma ya kwanza, si ushauri wa kitabibu. Misingi ya huduma ya kwanza

Kaa salama

Kamwe usimguse, kumkamata wala kumchokoza mnyama wa porini, hata akiwa mdogo, na hata akionekana amelala au amekufa.
Mpe nafasi. Ukikutana naye, tulia, rudi nyuma polepole na umwache aende zake.
Akikuuma: tulia, usitikisike, piga namba yako ya dharura (112, 000, 911) au nenda hospitali haraka. Kumbuka alivyoonekana, picha husaidia.

Hakuwindi wewe. Hutumia sumu yake kukamata chakula au kujilinda, na hupendelea zaidi kujificha. Zaidi kuhusu kukaa salama

Wapi duniani?

Afrika Asia Ulaya Amerika Kaskazini Amerika Kusini Australia na Oceania

Ana ukubwa gani?

Ana urefu gani?

mfupi kuliko kidole chako kidogoangeweza kukimbia mita 100 kwa sekunde 170 (binadamu mwenye kasi zaidi anahitaji 9.6)

Brazilian wandering spider ana ukubwa gani ukilinganisha na WEWE?

Ni hesabu tu kwenye kivinjari chako. Hakuna kinachohifadhiwa wala kutumwa popote.

Ana kasi gani?

Kobe takriban km 0.3 kwa saa (0.19 mph)

Brazilian wandering spider takriban km 2.1 kwa saa (1.3 mph)

Mtu anayetembea takriban km 5 kwa saa (3.1 mph)

inafaa kujua

Ukweli

A venom component called Tx2-6 is being studied for use in treatments for erectile dysfunction.1

Humans may be about ten times more sensitive to the venom than mice.1

Females may attack males after mating.1

Males perform a dance to attract females, and males may fight each other during courtship.1

Females can store sperm in a separate chamber until they are ready to fertilise their eggs.1

The average venom yield is 1.25 mg, and 0.4 mg in winter.1

Kwa wataalamu wa sumu

Jina la kisayansi: Phoneutria nigriventer
Kundi: Buibui
Familia: Ctenidae2
Mpangilio: Araneae
Mabara: Amerika Kusini
Watoto: Females may lay about 1,000 eggs, which are kept in a silk sac.1
Hatari kwa watu: 4 / 5: Hatari sana3

Ukweli unatoka wapi

Phoneutria nigriventer (Wikipedia (CC BY-SA 4.0))
Phoneutria nigriventer (iNaturalist): majina na uainishaji.
Venom Wiki: kiwango cha hatari, ukubwa wa kawaida na makadirio ya kasi ni yetu wenyewe. Ona jinsi tunavyovipata: Jinsi tunavyopima hatari.

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