Venom Wiki / Todas as criaturas / Arañas

N.º 0724 de 1 402

Black house spider

Badumna insignis

Só doeDoe, pero non che fará un dano grave.

Arañas

MordeCome: Carne

Perigo para as persoas: DolorosoPode doer moito, pero case nunca é grave.

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

Vive en

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

Australia e Oceanía

Inicio

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

Lonxitude

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

Velocidade máxima

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

En terra, estimación aproximada

Que come?

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.

Como recoñecelo

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

Adoita confundirse con: 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 da pezoña

Morde

A pezoña sae polos seus cairos ou dentes cando morde.

Que fai a súa pezoña?

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

Que perigoso é para as persoas?

Perigo para as persoas: DolorosoPode doer moito, pero case nunca é grave.

Black house spiders are venomous but are not considered dangerous. They are timid, and bites from them are infrequent.1

Se morde

Lava a mordedura e ponlle unha bolsa de xeo para a dor. Busca axuda médica se a dor é forte, se se estende ou se a persoa se sente mal.

Chama sempre primeiro ao teu número de emerxencias (112, 000, 911). Isto son consellos xerais de primeiros auxilios, non consello médico. Primeiros auxilios básicos

Mantente a salvo

Nunca toques, collas nin molestes un animal salvaxe, aínda que sexa pequeno e aínda que pareza durmido ou morto.
Déixalle espazo. Se atopas un, mantén a calma, recúa amodo e déixao ir polo seu camiño.
Se un te morde: mantén a calma, non te movas, chama ao teu número de emerxencias (112, 000, 911) ou vai rápido a un hospital. Lembra como era, unha foto axuda.

Non vai a por ti. Usa a súa pezoña para cazar comida ou para defenderse, e prefire con moito agocharse. Máis sobre como estar a salvo

En que lugar do mundo?

África Asia Europa América do Norte América do Sur Australia e Oceanía

Que tamaño ten?

Canto mide?

máis curto ca o teu dedo meniño

Que tamaño ten Black house spider comparado CONTIGO?

Só son contas no teu navegador. Non se garda nin se envía nada a ningures.

Que rápido é?

Unha tartaruga uns 0,3 km/h (0,19 mph)

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

Unha persoa camiñando uns 5 km/h (3,1 mph)

paga a pena sabelo

Datos

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

Desmontamitos

Mito: Black house spiders are dangerous spiders.

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

Para expertos en pezoñas

Nome científico: Badumna insignis
Grupo: Arañas
Familia: Desidae2
Orde: Araneae
Continentes: Australia e Oceanía
Crías: 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
Perigo para as persoas: 2 / 5: Doloroso3

De onde veñen os datos

Black house spider (Wikipedia (CC BY-SA 4.0))
Badumna insignis (iNaturalist): nomes e clasificación.
Venom Wiki: o nivel de perigo, o tamaño típico e a velocidade estimada son nosos. Mira como os calculamos: Como valoramos o perigo.

Cada dato desta páxina ten un número que leva á súa fonte. Se nos equivocamos nalgo, sentímolo, somos fans dos animais, non unha revista científica. Dínolo en [email protected] e arranxarémolo.

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