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Joro spider

Trichonephila clavata

Izenari buruz: Its common name comes from the jorōgumo, a legendary spider in Japanese folklore.1

KaltegabeaKaltegabea pertsonentzat. Ez dago kezkatzeko ezer.

Armiarmak

KoskaJaten du: Intsektuak

Arriskua pertsonentzat: ArinaErle-ziztada bat bezala edo gutxiago. Ia kaltegabea pertsonentzat.

The Joro spider is a large orb-weaving spider from East Asia. It has spread into parts of the eastern United States since the 2010s. It rarely bites people, and its venom is not medically significant.1

Non bizi den

East Asia (China, Japan except Hokkaidō, Korea, Taiwan); spreading across parts of the eastern United States1

Asia

Hasiera

Females build large webs and lay egg sacks on trees. In North America, the spider has also been seen in cities, on streetlamps and telephone poles.1

Luzera

2,5 cm (1 in)1

Abiadura handiena

1,7 km/h inguru (1,1 mph)

Lehorrean, kalkulu gutxi gorabeherakoa

Zer jaten du?

It eats mainly invasive or nuisance insects. It has been seen catching the brown marmorated stink bug, which native spiders in North America have not been known to eat.1

Argazkia: Joro spider — Joro spider. Argazkia: Kumon. CC BY 4.0, iNaturalist.

Nola ezagutu

Adult females have stripes of yellow and dark blue, with red toward the rear of the abdomen.1
Both sexes have a large abdomen and long legs.1
Females are much larger than males: about 1.7 to 2.5 cm, compared with about 0.7 to 1.0 cm for males.1
The web's yellow threads look gold in sunlight. The web has three layers, unusual for an orb web: a central orb, plus two irregular layers in front and behind it.1
Females' webs may reach several metres across.1

Pozoi-ahalmena

Koska

Pozoia letaginetatik edo hortzetatik ateratzen da kosk egiten duenean.

Zer egiten du bere pozoiak?

Its venom is weak. A bite causes temporary pain and redness, which has been compared to a bee sting. The venom is not medically significant.1

Zein arriskutsua da pertsonentzat?

Arriskua pertsonentzat: ArinaErle-ziztada bat bezala edo gutxiago. Ia kaltegabea pertsonentzat.

Its bite does not pose significant risks to humans. Its fangs are small and it is reluctant to bite, so bites are unlikely.1

Zer egiten du beldurtzen denean?

It is reluctant to bite.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?

klip bat bezain luzea, gutxi gorabehera100 metro 210 segundotan egin litzake (gizakirik azkarrenak 9,6 behar ditu)

Zein handia da Joro 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)

Joro spider 1,7 km/h inguru (1,1 mph)

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

jakin beharrekoa

Datuak

Females spin webs several metres long, and their yellow threads look gold in sunlight.1

The name comes from a shape-shifting spider in Japanese folklore that can breathe fire and control other spiders.1

By October 2022, its range covered at least 120,000 km² across several US states.1

In the Ao-Naga people's food tradition, this spider is eaten.1

The spider was first spotted in North America in Hoschton, Georgia, in 2013, and its presence was confirmed in 2014.1

Smaller males are sometimes seen in the females' webs during autumn, when they mate.1

Pozoi-adituentzat

Izen zientifikoa: Trichonephila clavata
Taldea: Armiarmak
Familia: Nephilidae2
Ordena: Araneae
Kontinenteak: Asia
Kumeak: Eggs overwinter, and young emerge in spring. After mating, the female lays 400 to 1,500 eggs in one egg sack on a tree.1
Arriskua pertsonentzat: 1 / 5: Arina3

Datuak nondik datozen

Trichonephila clavata (Wikipedia (CC BY-SA 4.0))
Trichonephila clavata (iNaturalist): izenak eta sailkapena.
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