Venom Wiki / Totes les criatures / Aranyes

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Black house spider

Badumna insignis

Només fa malFa mal, però no et farà cap mal greu.

Aranyes

MossegadesMenja: Carn

Perill per a les persones: DolorósPot fer molt de mal, però gairebé mai no és greu.

The black house spider is a dark, sturdy spider that lives across Australia. It was carried to New Zealand and Japan, and it often lives in homes, where it sits in a messy web in corners and near windows. It is venomous, but its bite is rarely a serious danger to people.1

Viu a

Native to Australia. Introduced to New Zealand and Japan, and widely found in both Australia and New Zealand.1

Austràlia i Oceania

Inici

Outdoors, it is usually found on rough-barked trees. Indoors, it is often found in corners, around windows and doorways, or where lights attract insects.1

Llargada

de 1 cm a 1,8 cm (de 0,4 in a 0,7 in)1

Velocitat màxima

uns 0,86 km/h (0,53 mph)

A terra, estimació aproximada

Què menja?

The spider waits in its funnel-shaped retreat for insects to land in its web. Young spiders catch smaller prey that the larger female ignores.1

Foto de Black house spider — Black house spider. Foto: evaladyman. CC0, iNaturalist.

Com reconèixer-lo

A dark, robust spider. Females have a body up to 18 mm long and a leg span of 30 mm.1
Males are smaller, about 10 mm long, with longer legs in proportion to their body.1
The body and legs are dark brown to black. The abdomen (rear part) is charcoal grey, with light markings that are sometimes faint, and it is covered in fine, velvety hair.1
The web looks messy, with irregular sail-like sheets of silk and a funnel-shaped retreat, usually in the middle or corner of the web.1

Sovint es confon amb: The grey house spider (Badumna longinqua) is similar and has a similar range. It is slightly smaller, at about 14 mm, has a greyish top section (carapace) and black-brown legs. It is more often found outdoors.1

Poder del verí

Mossegades

El verí surt pels ullals o les dents quan mossega.

Què fa el seu verí?

The bite is venomous. It may be excruciatingly painful and cause local swelling. Nausea, vomiting, sweating and dizziness are occasionally recorded. In a few cases, skin lesions (arachnogenic necrosis, damage to the skin and tissue) have developed after several bites.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.

Black house spiders are venomous but are not considered dangerous. They are timid, and bites from them are infrequent.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

On del món?

Àfrica Àsia Europa Amèrica del Nord Amèrica del Sud Austràlia i Oceania

Que gran és?

Quant fa de llarg?

més curt que el teu dit petit

Que gran és Black house spider comparat amb TU?

Només càlculs al teu navegador. No es desa ni s'envia res enlloc.

Com de ràpid va?

Una tortuga uns 0,3 km/h (0,19 mph)

Black house spider uns 0,86 km/h (0,53 mph)

Una persona caminant uns 5 km/h (3,1 mph)

val la pena saber-ho

Dades

A male plucks the female's web to attract her attention before he approaches to mate. They may stay together for several days and mate several times.1

The spider rarely moves its web, so old webs become messy, with dust and small objects stuck in them.1

At night, the spider repairs and adds to its web, often by laying new silk over the old.1

The female almost never leaves her web unless she is forced to.1

Predators include the white-tailed spider, as well as parasitic wasps and flies.1

Desmuntamites

Mite: Black house spiders are dangerous spiders.

Veritat: They are venomous, but they are not considered dangerous. They are timid, and their bites are infrequent.1

Per a experts en verins

Nom científic: Badumna insignis
Grup: Aranyes
Família: Desidae2
Ordre: Araneae
Continents: Austràlia i Oceania
Cries: The female builds several white silk egg sacs inside the web retreat and stays with the eggs until they hatch. The young may leave or stay in the mother's web for some time.1
Perill per a les persones: 2 / 5: Dolorós3

D'on surten les dades

Black house spider (Wikipedia (CC BY-SA 4.0))
Badumna insignis (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.

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