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Redback spider

Latrodectus hasselti

Davart il num: It is called the redback because of the distinctive red stripe along the top of its abdomen.1

Dovra in mediDarar mortal, ma ina morsa sto vegnir tractada dad in medi.

Filiens

MorsasMangia: Charn

Privel per umans: GravIna morsa sto vegnir tractada dad in medi. Cas da mort èn fitg rars.

The redback spider is a highly venomous spider. It is thought to come from Australia, but it now also lives in Southeast Asia, Japan and New Zealand. It often lives close to people, in warm, sheltered places in and around homes, so it matters a great deal for safety.1

Viva en

Australia, Southeast Asia, Japan and New Zealand; established colonies also in the United Arab Emirates1

Australia ed Oceania

Pagina iniziala

It lives in warm, sheltered places, commonly near or inside human homes and other buildings. Food scraps and lights attract the insects it hunts, which brings the redback closer to people.1

Lunghezza

1 cm (0,4 in)1

Sveltezza maximala

circa 0,92 km/h (0,57 mph)

Sin terra, stima approximativa

Tge mangia el?

It mainly catches insects, but also spiders, small lizards and occasionally even snakes or a mouse that become caught in its web. It squirts sticky silk over the prey, bites it repeatedly, wraps it in silk, then sucks out its liquefied insides back at its retreat.1

Foto da Redback spider — Redback spider. Foto: Paul Whitington. CC BY 4.0, iNaturalist.

Co renconuscher el

The adult female has a round, shiny black body with a red stripe on the top of the abdomen.1
Underneath, she has an hourglass-shaped red or orange streak.1
The female's body is about 1 cm long, with slender legs.1
The male is much smaller, 3 to 4 mm long, light brown with white markings on the upper abdomen and a pale hourglass marking underneath.1
Its web is an irregular, untidy tangle of strong silk, usually in a warm, sheltered spot.1

Savens confundì cun: The false redback spider (Steatoda capensis) has a similar build but is uniformly black or plum-coloured, and it has no red stripe on its abdomen.1

Forza dal tissi

Morsas

Il tissi vegn or tras ses dents da tissi u ses dents, cura ch'el morda.

Tge fa ses tissi?

The venom is neurotoxic to vertebrates, meaning it attacks the nerves, and it causes a condition called latrodectism. Pain starts around the bite and typically becomes severe, spreading up the bitten limb and lasting for over 24 hours. Localised sweating in patches of skin is highly indicative of latrodectism, and nausea, vomiting, headache and agitation may indicate severe envenomation.1

Quant privlus è el per umans?

Privel per umans: GravIna morsa sto vegnir tractada dad in medi. Cas da mort èn fitg rars.

The redback is one of the few spider species that can seriously harm humans. Because it often lives in buildings, it is responsible for a large number of serious spider bites in Australia.1

Bunas novitads: ils medis han in medicament (antiserum) u in tractament per quai.1

Tge fa el, cura ch'el ha tema?

Its bright scarlet markings may serve as a warning to potential predators.1

Sch'el morda

Lava la morsa e metta in pachet da glatsch sin ella cunter las dolurs. Tschertga agid medicinal, sche las dolurs èn fermas, sa derasan u sche la persuna na sa senta betg bain.

Clama adina l'emprim tes numer d'urgenza (112, 000, 911). Quai è in cussegl general d'emprim agid, betg in cussegl medicinal. Basa da l'emprim agid

Resta en segirezza

Na tutga, na piglia e na tizza mai in animal selvadi, gnanc in pitschen, ed era sch'el para da durmir u d'esser mort.
Dà spazi a l'animal. Sche ti scuntras in, resta calm, va plaun enavos e lascha ir el per sia via.
Sch'in tal animal ta morda: resta calm, na ta mova betg, clama tes numer d'urgenza (112, 000, 911) u va spert en in ospital. Ta regorda co ch'el veseva or, ina foto gida.

El n'ha betg quai sin tai. El dovra ses tissi per pigliar nutriment u per sa defender, e sa zuppa bler pli gugent. Dapli davart la segirezza

Nua sin il mund?

Africa Asia Europa America dal Nord America dal Sid Australia ed Oceania

Quant grond è el?

Quant lung è el?

uschè pitschen ch'el po seser sin tia ungla

Quant grond è Redback spider cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn memorisà u tramess.

Quant svelt è el?

Ina tartaruga circa 0,3 km/h (0,19 mph)

Redback spider circa 0,92 km/h (0,57 mph)

Ina persuna che va a pe circa 5 km/h (3,1 mph)

bun da savair

Fatgs

A male redback can successfully mate with a female katipō, a related New Zealand spider, producing hybrid offspring.1

Males often mate with a female who may then eat them, a behaviour called sexual cannibalism that many arachnids show while mating.1

In laboratory tests, redbacks survived an average of 100 days, and sometimes over 300 days, without food.1

After mating, a female can store sperm for up to two years and use it to fertilise several clutches of eggs.1

Spiderlings and larger females steal food from other spiders' webs, and spiderlings sometimes eat their less active siblings.1

Per experts da tissi

Num scientific: Latrodectus hasselti
Gruppa: Filiens
Famiglia: Theridiidae2
Urden: Araneae
Continents: Australia ed Oceania
Poppins: Each clutch averages 250 eggs, housed in a round white silken egg sac. Spiderlings hatch after about 8 days, though cooler temperatures can greatly slow this.1
Durada da vita: circa 3 onns1
Privel per umans: 3 / 5: Grav3

Da nua che vegnan ils fatgs

Redback spider (Wikipedia (CC BY-SA 4.0))
Latrodectus hasselti (iNaturalist): nums e classificaziun.
Venom Wiki: il stgalim da privel, la grondezza tipica e la stima da la sveltezza èn noss agens. Guarda co che nus als calculain: Co che nus valitain il privel.

Mintga fatg sin questa pagina ha in numer che renvia a sia funtauna. Sche nus avain fatg in sbagl, perstgisa, nus essan fans d'animals, betg ina revista scientifica. Scriva a nus a [email protected] e nus curregin.

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