Brown widow
MossegadesThe 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

Com reconèixer-lo
- 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
Sovint es confon amb: 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
Poder del verí
El verí surt pels ullals o les dents quan mossega.
Què fa el seu verí?
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
Com de perillós és per a les persones?
Perill per a les persones: DolorósPot fer molt de mal, però gairebé mai no és greu.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
Si mossega
- Renta la mossegada i posa-hi gel per al dolor. Busca ajuda mèdica si el dolor és fort, s'estén o la persona es troba malament.
Truca sempre primer al número d'emergències (112, 000, 911). Això són pautes generals de primers auxilis, no consells mèdics. Primers auxilis bàsics
Estigues segur
- No toquis, atrapis ni molestis mai un animal salvatge, encara que sigui petit i encara que sembli adormit o mort.
- Deixa-li espai. Si en trobes un, mantén la calma, recula a poc a poc i deixa que segueixi el seu camí.
- Si te'n mossega un: mantén la calma, no et moguis, truca al número d'emergències (112, 000, 911) o ves de pressa a un hospital. Recorda com era, una foto ajuda.
No va a per tu. Fa servir el verí per caçar o per defensar-se, i prefereix mil vegades amagar-se. Més sobre com estar segur
Que gran és?
Quant fa de llarg?
més o menys el que fa de llarg un clipQue gran és Brown widow comparat amb TU?
Només càlculs al teu navegador. No es desa ni s'envia res enlloc.
Com de ràpid va?
Dades
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
Desmuntamites
Mite: The brown widow is as dangerous as the black widow.
Veritat: Brown widow bites are usually not very dangerous and are much less dangerous than black widow bites.1
Per a experts en verins
- Nom científic
- Latrodectus geometricus
- Grup
- Aranyes
- Família
- Theridiidae2
- Ordre
- Araneae
- Continents
- Àfrica
- Cries
- 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
- Com li va a la natura
- Least Concern (South African National Biodiversity Institute)1
- Perill per a les persones
- 2 / 5: Dolorós3
D'on surten les dades
- Latrodectus geometricus (Wikipedia (CC BY-SA 4.0))
- Latrodectus geometricus (iNaturalist): noms i classificació.
- Venom Wiki: el nivell de perill, la mida típica i la velocitat estimada són nostres. Mira com els calculem: Com valorem el perill.
Cada dada d'aquesta pàgina té un número que porta a la seva font. Si ens hem equivocat en alguna cosa, perdona, som fans dels animals, no una revista científica. Escriu-nos a [email protected] i ho arreglarem.