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N.º 0679 de 1 402

Cupboard spider

Steatoda grossa
Sobre o nome: Its names 'false black widow' and 'false widow' come from how much it looks like the black widow spider.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 cupboard spider is a common house spider that lives in dark corners and builds messy, three-dimensional webs. It is often mistaken for the dangerous black widow, but its bite is usually minor. Its name shows that it is found in many parts of the world, including Europe, temperate Asia and areas where it has been introduced.1

Vive en
Native to Europe and much of temperate Asia. Introduced to North and South America, Macaronesia, Africa, New Zealand and Hawaii.1
Europa
Inicio
It constructs three-dimensional webs in dark places. In South Africa it has been found in grassland, fynbos, Nama Karoo and savanna biomes.1
Lonxitude
1,1 cm (0,4 in)1
Velocidade máxima
uns 0,86 km/h (0,53 mph)
En terra, estimación aproximada
Que come?
It builds a cobweb of sticky silk fibres and depends mostly on vibrations travelling through the web to find prey. It reportedly preys on black widows.1
De verdade!Foto de Cupboard spider
Cupboard spider. Foto: Ryan Kaldari, no known copyright restrictions (public domain). Public domain, iNaturalist.

Como recoñecelo

  • Adult females are 6 to 10.5 mm long, dark coloured and round-bodied, with a bulbous abdomen.1
  • Typical colour ranges from purplish brown to black, with light-coloured markings.1
  • It has no bright red hourglass pattern or other bright, distinctive markings.1
  • Males are thinner and can be nearly as long as females, at 4.1 to 10 mm.1
  • Sexually mature males have lighter, more reddish legs than females.1

Adoita confundirse con: It is often confused with black widows and redbacks (Latrodectus species), which have a bright red hourglass pattern that this spider lacks. Steatoda borealis is similar in shape but slightly smaller and found in colder climates. It has coloured markings on the top of the abdomen rather than the underside.1

Poder da pezoña

Morde

A pezoña sae polos seus cairos ou dentes cando morde.

Que fai a súa pezoña?

The bite is minor in humans and has no long-lasting effects. Symptoms can include blistering at the bite site and pain. A few cases have included fever, nausea, sweating and a general feeling of being unwell that lasted several days.1

Que perigoso é para as persoas?

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

The spider is not aggressive. Most injuries to people happen when a spider is accidentally squeezed or pinched and bites in defence. It is possible that a spider may bite a finger pushed into its web by mistake.1

Boas novas: os médicos teñen un medicamento (antiveleno) ou un tratamento para isto.1

Que fai cando ten medo?

It usually flees when a large creature comes near, and it bites when it is squeezed or pinched.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

Que tamaño ten?

Canto mide?

Cupboard spider mide uns 1,1 cm (0,4 in)Un gran de arroz uns 7 mm (0,3 in)Unha moeda de 1 euro uns 2,3 cm (0,9 in)
tan pequeno que cabe na túa unlla

Que tamaño ten Cupboard 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

Director Sam Raimi chose this spider to play the radioactive spider that bites Peter Parker in the 2002 film Spider-Man. The filming spider was painted with red and blue makeup.1

2

The spider reportedly preys on black widows, which can make it useful to have around.1

3

It can go several months without feeding, as long as it has access to water.1

4

Females can live up to six years, while males typically live 1 to 1.5 years and often die shortly after mating.1

Desmontamitos

Mito: It is a dangerous widow spider, just like the black widow.

Verdade: Its bite is minor in humans and has no long-lasting effects, although it can cause pain, blistering and, in a few cases, several days of feeling unwell.1

Para expertos en pezoñas

Nome científico
Steatoda grossa
Grupo
Arañas
Familia
Theridiidae2
Orde
Araneae
Continentes
Europa
Crías
A well-fed female can lay three or more egg sacs each year, with 40 to 100 eggs in each sac. The eggs usually hatch within a month at normal household temperature and humidity, and the spiderlings are independent from the moment they hatch.1
Esperanza de vida
uns 6 anos1
Perigo para as persoas
1 / 5: Leve3

De onde veñen os datos

  1. Steatoda grossa (Wikipedia (CC BY-SA 4.0))
  2. Steatoda grossa (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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