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Yellow garden spider

Argiope aurantia
Sobre o nome: The genus name Argiope means "silver-face" and the species name aurantia means "gilded", giving a Latin name that translates to "gilded silver-face".1
InofensivoInofensivo para as persoas. Non hai nada de que preocuparse.
Arañas MordeCome: Carne
Perigo para as persoas: LeveComa unha picadura de abella ou menos. Practicamente inofensivo para as persoas.

The yellow garden spider is a large, colourful spider with yellow and black markings on its abdomen. It builds big round webs in sunny fields, gardens and along the eaves of houses in North America, Mexico and Central America. It bites only if disturbed or handled, and its bite is comparable to a bee sting.1

Vive en
Contiguous United States, Hawaii, southern Canada, Mexico and Central America; found from Canada to Colombia, but less often in the basin and mountain areas of the Rockies.1
América do Norte
Inicio
Yellow garden spiders build webs in open, sunny fields, where they stay concealed and sheltered from the wind. They are also found along the eaves of houses and outbuildings, and in any tall vegetation where a web can be stretched securely.1
Lonxitude
2,8 cm (1,1 in)1
Velocidade máxima
uns 1,3 km/h (0,81 mph)
En terra, estimación aproximada
Que come?
The spider waits in the centre of its web for prey to become trapped. It may shake the web back and forth to trap the insect further, then kills the prey with venom and wraps it in a silk cocoon to eat later, typically 1–4 hours afterwards. Prey includes insects and small vertebrates such as geckos and green anoles.1
De verdade!Foto de Yellow garden spider
Yellow garden spider. Foto: Judy Gallagher. CC BY 2.0, Wikimedia Commons.

Como recoñecelo

  • Yellow and black markings on the abdomen (the rear part of the body).1
  • A mostly white front body section (cephalothorax).1
  • A large, circular web up to 60 cm across, with a dense zigzag of silk in the centre.1
  • The female sits in the centre of the web, usually facing straight down.1
  • Females measure 19–28 mm in body length, while males are much smaller at 5–9 mm.1

Poder da pezoña

Morde

A pezoña sae polos seus cairos ou dentes cando morde.

Que fai a súa pezoña?

The venom contains polyamine toxins, including one called argiotoxin ArgTX-636, which are being studied for possible medical uses. For most people the venom is harmless, and a bite causes redness and swelling, similar to a bee sting. It is harmless to people who are not allergic.1

Que perigoso é para as persoas?

Perigo para as persoas: LeveComa unha picadura de abella ou menos. Practicamente inofensivo para as persoas.

These spiders are not aggressive and only bite if grabbed or disturbed. For a healthy adult, a bite is not considered an issue. People who are very young, elderly, or have weakened immune systems should take the same care they would around a beehive or hornet nest.1

Que fai cando ten medo?

If disturbed by a possible predator, the female may drop from her web and hide on the ground nearby, and she can shake the web vigorously while staying attached in the centre.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?

ÁfricaAsiaEuropaAmérica do NorteAmérica do SurAustralia e Oceanía

Que tamaño ten?

Canto mide?

Yellow garden spider mide uns 2,8 cm (1,1 in)Unha moeda de 1 euro uns 2,3 cm (0,9 in)Un clip uns 3 cm (1,2 in)
mide máis ou menos coma un clippodería percorrer 100 metros en 280 segundos (o humano máis rápido precisa 9,6)

Que tamaño ten Yellow garden spider comparado CONTIGO?

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

Que rápido é?

paga a pena sabelo

Datos

1

The female can shake her web vigorously to make it harder for wasps and birds to target her, and to fully tangle an insect before it cuts itself free.1

2

After mating, the male often dies and is sometimes eaten by the female, as he inserts his second palpal bulb.1

3

The zigzag silk in the web, called a stabilimentum, may camouflage the spider, attract prey, or warn birds away, but its purpose is still disputed.1

4

In a case observed in Georgia, a European hornet cut free prey caught in a yellow garden spider's web, and the spider did not fight it, probably because it dropped from the web and hid.1

Desmontamitos

Mito: Yellow garden spiders are dangerous and their bite can seriously harm a healthy adult.

Verdade: The venom is harmless to people who are not allergic. A bite is comparable to a bumblebee sting and is not considered an issue for healthy adults.1

Para expertos en pezoñas

Nome científico
Argiope aurantia
Grupo
Arañas
Familia
Araneidae2
Orde
Araneae
Continentes
América do Norte
Crías
Each female produces one to four egg sacs, each holding perhaps over a thousand eggs, and in spring the tiny spiderlings emerge and some are carried away on silk strands by the breeze.1
Perigo para as persoas
1 / 5: Leve3

De onde veñen os datos

  1. Argiope aurantia (Wikipedia (CC BY-SA 4.0))
  2. Argiope aurantia (iNaturalist): nomes e clasificación.
  3. 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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