Venom Wiki / Todas as criaturas / Arañas

N.º 0727 de 1 402

Tube web spider

Segestria florentina

Sobre o nome: The name green-fanged refers to the striking green shine of its fangs (chelicerae), which reflect green light.1

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 tube web spider is a dark spider that builds a tube-shaped web in cracks in walls and buildings. It began in the Mediterranean region but has spread to many towns in southern Britain and other parts of the world. Its bite is reported to be very painful, so it is worth knowing what it looks like.1

Vive en

Originally the Mediterranean region as far east as Georgia; now many towns in southern Britain, and also Argentina, Australia, several Atlantic islands and Limerick in Ireland1

Europa

Inicio

It spins its tube web often in cracks of buildings and prefers south-facing walls, especially brick structures. It has been found in towns, cathedrals and an abbey, including Exeter Cathedral and Westminster Abbey.1

Lonxitude

2,2 cm (0,9 in)1

Velocidade máxima

uns 1 km/h (0,62 mph)

En terra, estimación aproximada

Que come?

It waits in the entrance of its tube and touches the silk lines with its front legs. When prey such as nocturnal moths and cockroaches triggers the lines, it is caught, and the spider pulls it into the tube to eat. Bees and wasps are always bitten at the head end, so the sting faces away from the spider.1

Foto de Tube web spider — Tube web spider. Foto: Lmbuga Commons. CC BY-SA 4.0, iNaturalist.

Como recoñecelo

Adults are a uniform black, sometimes with a green shine, especially on the fangs.1
Young spiders (subadults) have a greyish abdomen with a marking.1
It makes a tubular web with six or more silk lines radiating out from the entrance.1
Adults are seen from June to November.1
Females can reach a body length of 22 mm, and males up to 15 mm.1

Poder da pezoña

Morde

A pezoña sae polos seus cairos ou dentes cando morde.

Que fai a súa pezoña?

The venom contains two neurotoxins, which attack the nerves, and one insecticide. The venom reduces the rate and amount of sodium inactivation, a process in nerve cells. The bite is reported to feel like a deep injection, and the pain can last for several hours.1

Que perigoso é para as persoas?

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

The bite is reported to be extremely painful, but it is also said to feel like a bee sting, which places it at 2 on the Schmidt sting pain index. The bite has no lasting effects.1

Que fai cando ten medo?

When disturbed while feeding, it retreats further into its tube.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?

mide máis ou menos coma un clippodería percorrer 100 metros en 360 segundos (o humano máis rápido precisa 9,6)

Que tamaño ten Tube web 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)

Tube web spider uns 1 km/h (0,62 mph)

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

paga a pena sabelo

Datos

A population in Westminster Abbey has been proposed as a new subspecies, because its fangs are a brighter green and its members are significantly smaller than other European populations.1

Specimens have been found in Exeter Cathedral as far back as 1890.1

Females lay eggs in the bricks of south-facing structures during winter, so a female seen in September or October may already have laid eggs for the next spring.1

It is the largest European segestriid spider.1

In Britain it was probably introduced via seaports, with records going back at least to 1845.1

Para expertos en pezoñas

Nome científico: Segestria florentina
Grupo: Arañas
Familia: Segestriidae2
Orde: Araneae
Continentes: Europa
Crías: The female lays her eggs inside the tube web. Sometimes she dies after the spiderlings hatch, and they may eat their mother.1
Perigo para as persoas: 2 / 5: Doloroso3

De onde veñen os datos

Segestria florentina (Wikipedia (CC BY-SA 4.0))
Segestria florentina (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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