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Black house spider

Badumna insignis

Min ematen du, besterik ezMin ematen du, baina ez dizu kalte larririk egingo.

KoskaJaten du: Haragia

Arriskua pertsonentzat: MingarriaBenetan min handia eman dezake, baina ia inoiz ez da larria.

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

Non bizi den

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

Australia eta Ozeania

Hasiera

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

Luzera

1 cm eta 1,8 cm artean (0,4 in eta 0,7 in artean)1

Abiadura handiena

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

Lehorrean, kalkulu gutxi gorabeherakoa

Zer jaten du?

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

Argazkia: Black house spider — Black house spider. Argazkia: evaladyman. CC0, iNaturalist.

Nola ezagutu

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

Askotan honekin nahasten da: 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

Pozoi-ahalmena

Koska

Pozoia letaginetatik edo hortzetatik ateratzen da kosk egiten duenean.

Zer egiten du bere pozoiak?

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

Zein arriskutsua da pertsonentzat?

Arriskua pertsonentzat: MingarriaBenetan min handia eman dezake, baina ia inoiz ez da larria.

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

Kosk egiten badu

Garbitu koska eta jarri izotz-poltsa bat gainean minerako. Lortu mediku-laguntza mina handia bada, zabaltzen bada edo pertsona gaizki sentitzen bada.

Deitu beti lehenik zure larrialdi-zenbakira (112, 000, 911). Lehen sorospenei buruzko orientabide orokorra da hau, ez mediku-aholkua. Lehen sorospenen oinarriak

Egon seguru

Ez ukitu, ez harrapatu eta ez zirikatu inoiz animalia basati bat, txikia izan arren, eta lo edo hilda dagoela badirudi ere.
Utzi tartea. Bat aurkitzen baduzu, egon lasai, egin atzera poliki eta utzi bere bidetik joaten.
Batek kosk egiten badizu: egon lasai, egon geldi, deitu zure larrialdi-zenbakira (112, 000, 911) edo joan ospitalera azkar. Gogoratu nolakoa zen, argazki batek laguntzen du.

Ez dabil zure atzetik. Pozoia janaria harrapatzeko edo bere burua babesteko erabiltzen du, eta askoz nahiago du ezkutatu. Seguru egoteari buruz gehiago

Munduko zein tokitan?

Afrika Asia Europa Ipar Amerika Hego Amerika Australia eta Ozeania

Zein handia da?

Zein luzea da?

zure hatz txikia baino laburragoa

Zein handia da Black house spider ZUREKIN alderatuta?

Matematika hutsa zure nabigatzailean. Ez da ezer gordetzen, ezta inora bidaltzen ere.

Zein azkarra da?

Dortoka bat 0,3 km/h inguru (0,19 mph)

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

Oinez doan pertsona bat 5 km/h inguru (3,1 mph)

jakin beharrekoa

Datuak

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

Mito-hauslea

Mitoa: Black house spiders are dangerous spiders.

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

Pozoi-adituentzat

Izen zientifikoa: Badumna insignis
Taldea: Armiarmak
Familia: Desidae2
Ordena: Araneae
Kontinenteak: Australia eta Ozeania
Kumeak: 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
Arriskua pertsonentzat: 2 / 5: Mingarria3

Datuak nondik datozen

Black house spider (Wikipedia (CC BY-SA 4.0))
Badumna insignis (iNaturalist): izenak eta sailkapena.
Venom Wiki: arrisku-maila, ohiko tamaina eta abiadura-kalkulua geureak dira. Ikusi nola kalkulatzen ditugun: Nola baloratzen dugun arriskua.

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