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Brown widow

Latrodectus geometricus

Oor die naam: The name comes from the geometric pattern on the top of its abdomen (its rear body section).1

Maak net seerDit maak seer, maar dit sal jou nie ernstig skade doen nie.

Spinnekoppe

Byte

Gevaar vir mense: PynlikDit kan regtig seermaak, maar dit is amper nooit ernstig nie.

The brown widow is a spider in the widow family, a close cousin of the black widow. It lives in many parts of the world, often around houses and buildings. Its bite is painful but usually not dangerous.1

Leef in

Originally Africa; now found across the Americas, Asia, Australia, Papua New Guinea, Hawaii, Poland and the Middle East1

Afrika

Tuis

It builds untidy three-dimensional webs in dark corners, in vegetation and around buildings. It is commonly found around houses, and in tropical areas it is usually found around buildings. It also lives in crops such as avocado, citrus, cotton, maize, vineyards and pistachio.1

Lengte

3,5 cm (1,4 in)3

tipiese grootte van 'n volwasse dier

Topspoed

omtrent 0,92 km/h (0,57 mph)

Op land, rowwe skatting

Foto van Brown widow — Brown widow. Foto: Jesse Rorabaugh. CC BY 4.0, iNaturalist.

Hoe om dit te herken

Black and white geometric pattern on the top of the abdomen1
Usually a bright orange or yellowish hourglass marking on the underside of the abdomen1
Body colour ranges from tan and dark brown to black, with shades of grey also possible1
Stripes on the legs1
Egg sacs are spiky, like a sandspur, and sometimes described as tufted, fluffy or spiky1

Word dikwels verwar met: The black widow is slightly larger and darker, and has a red hourglass on the underside. The brown widow is lighter, has an orange or yellow hourglass, and has a black and white pattern on top of the abdomen that the black widow does not have. In southern Africa, the brown widow's relative L. rhodesiensis, native to Zimbabwe, is also called a brown button spider.1

Gifkrag

Byte

Gif kom deur sy giftande of tande uit wanneer dit byt.

Wat doen sy gif as dit byt of steek?

Like all widow spiders, the brown widow has a neurotoxic venom, which attacks the nerves. It causes latrodectism, a set of very unpleasant symptoms. The effects are usually confined to the bite area and the tissue around it.1

Hoe gevaarlik is dit vir mense?

Gevaar vir mense: PynlikDit kan regtig seermaak, maar dit is amper nooit ernstig nie.

Brown widow bites are usually not very dangerous, and are much less dangerous than black widow bites. The spider cannot deliver as much venom as a black widow, so its bites are considered minor. They are painful.1

As dit byt

Was die byt en sit 'n yspak daarop vir die pyn. Kry mediese hulp as die pyn erg is, versprei of die persoon sleg voel.

Bel altyd eers jou noodnommer (112, 000, 911). Dit is algemene noodhulpraad, nie mediese advies nie. Noodhulp-basiese beginsels

Bly veilig

Moet nooit aan 'n wilde dier raak, dit vang of terg nie, selfs nie 'n kleintjie nie, en selfs nie as dit lyk of dit slaap of dood is nie.
Gee dit spasie. As jy een raakloop, bly kalm, stap stadig terug en laat dit sy eie pad gaan.
As een jou byt: bly kalm, bly stil, bel jou noodnommer (112, 000, 911) of kom vinnig by 'n hospitaal uit. Onthou hoe dit gelyk het, 'n foto help.

Dit is nie uit om jou te kry nie. Dit gebruik sy gif om kos te vang of om homself te beskerm, en kruip baie eerder weg. Meer oor veilig bly

Waar in die wêreld?

Afrika Asië Europa Noord-Amerika Suid-Amerika Australië & Oseanië

Hoe groot is dit?

Hoe lank is dit?

omtrent so lank soos 'n skuifspeld

Hoe groot is Brown widow in vergelyking met JOU?

Net wiskunde in jou blaaier. Niks word gestoor of enige plek heen gestuur nie.

Hoe vinnig is dit?

'n Skilpad omtrent 0,3 km/h (0,19 mph)

Brown widow omtrent 0,92 km/h (0,57 mph)

'n Mens wat loop omtrent 5 km/h (3,1 mph)

die moeite werd om te weet

Feite

In Southern California, researchers suggest the brown widow may be pushing black widows out of the area by competing and fighting for territory.1

Its egg sacs are so spiky that they are easy to tell apart from those of most other spiders.1

A female can make up to 20 egg sacs over her lifetime, with 120 to 150 eggs in each.1

Brown widows are preyed upon by wasps, including blue mud-dauber wasps and digger wasps.1

Mite-breker

Mite: The brown widow is as dangerous as the black widow.

Waarheid: Brown widow bites are usually not very dangerous and are much less dangerous than black widow bites.1

Vir gifkenners

Wetenskaplike naam: Latrodectus geometricus
Groep: Spinnekoppe
Familie: Theridiidae2
Orde: Araneae
Kontinente: Afrika
Babas: Eggs hatch in about 20 days. Each female lays about 120 to 150 eggs per sac and can make up to 20 sacs in her lifetime.1
Hoe dit in die natuur gaan: Least Concern (South African National Biodiversity Institute)1
Gevaar vir mense: 2 / 5: Pynlik3

Waar die feite vandaan kom

Latrodectus geometricus (Wikipedia (CC BY-SA 4.0))
Latrodectus geometricus (iNaturalist): name en klassifikasie.
Venom Wiki: die gevaarvlak, die tipiese grootte en die spoedskatting is ons eie. Kyk hoe ons dit uitwerk: Hoe ons gevaar gradeer.

Elke feit op hierdie bladsy het 'n nommer wat na sy bron wys. As ons iets verkeerd het, jammer, ons is dierfanatici, nie 'n wetenskaplike joernaal nie. Laat weet ons by [email protected] en ons maak dit reg.

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