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Debuxo de Chilean recluse
N.º 0654 de 1 402

Chilean recluse

Loxosceles laeta
Sobre o nome: Laeta is Latin for "happy". In Spanish it is called araña de rincón, meaning "corner spider".1
Precisa un médicoRaramente mortal, pero unha mordedura precisa un médico.
Arañas MordeCome: Carne
Perigo para as persoas: GraveUnha mordedura precisa un médico. As mortes son moi raras.

The Chilean recluse is a brown spider from South America that is considered the most dangerous of the recluse spiders. Its bite can cause serious skin damage and, in rare cases, serious illness that affects the whole body. It is also known for spreading to homes and buildings in several other countries.1

Vive en
Native to South America, including Chile, Peru, Ecuador, Argentina, Uruguay and southern and eastern Brazil1
América do Sur
Inicio
Dry, undisturbed places such as woodpiles, sheds, closets and garages. It is often found in human homes. It has also been found in buildings in the USA, Canada, Australia, Sweden, Finland and Germany, although it does not thrive in most of these places.1
Lonxitude
8 mm a 4 cm (0,3 in a 1,6 in)1
Velocidade máxima
uns 0,98 km/h (0,61 mph)
En terra, estimación aproximada
Que come?
It hunts at night, leaving its messy web to do so.1
De verdade!Foto de Chilean recluse
Chilean recluse. Foto: Kaz Born. CC BY 4.0, iNaturalist.

Como recoñecelo

  • Brown, ranging from light tan to brown.1
  • Usually has a dark, violin-shaped marking on the top of the front body section, but this marking may not be visible.1
  • Has six eyes arranged in three pairs, not the eight eyes most spiders have. Checking the eyes is more reliable than checking the marking.1
  • Measures 8 to 40 mm including legs, making it one of the larger recluse species.1
  • Builds irregular webs with a messy shelter of tangled threads. It leaves these webs at night to hunt.1

Adoita confundirse con: Other recluse spiders look similar. The violin marking is not a reliable guide, so the eye arrangement is the more important feature for identification. Six eyes in three pairs is the key clue.1

Poder da pezoña

Morde

A pezoña sae polos seus cairos ou dentes cando morde.

Que fai a súa pezoña?

Its venom contains sphingomyelinase D, a substance that destroys skin and tissue. Most bites cause mild irritation, but serious bites can cause a necrotising skin ulcer, which is an open wound where tissue dies. In 10 to 15% of cases, the venom causes a whole-body condition that damages organs, blood cells and kidneys. Bites may feel fine at first, and visible damage can take up to seven hours to appear, while the venom can spread through the body within minutes.1

Que perigoso é para as persoas?

Perigo para as persoas: GraveUnha mordedura precisa un médico. As mortes son moi raras.

Its bite often causes serious reactions, up to and including death. In a study covering 30 years of bites in Chile, 3 to 4% of cases ended in death. In a study of 250 cases in Santiago, Chile, from 1955 to 2000, 9 of the 47 people with the most severe whole-body reaction died. Skin damage can take months, and sometimes years, to heal, leaving deep scars.1

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

Que fai cando ten medo?

It is not aggressive and usually bites only when it is pressed against skin, such as when someone puts on clothing where it is hiding.1

Se morde

  • Applying an ice pack helps, because the venom is more active at high temperatures. Aloe vera may soothe the skin and help control pain.1
  • 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?

Chilean recluse mide uns 4 cm (1,6 in)Un clip uns 3 cm (1,2 in)Un móbil uns 15 cm (5,9 in)
mide máis ou menos coma un clip

Que tamaño ten Chilean recluse 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

Its venom contains sphingomyelinase D, which is otherwise found only in a few harmful bacteria.1

2

Its venom contains about ten times more of this substance than other sicariid spiders, such as the brown recluse, according to one study.1

3

A colony has lived in the Natural History Museum of Helsinki, probably introduced through fruit shipments in the 1960s and 1970s.1

4

It can survive for a long time without food or water, which helps it spread to new places around the world.1

5

Chile's Loxosceles laeta can produce 60 μg of venom by electrical stimulation, more than the related Loxosceles intermedia and Loxosceles gaucho.1

Desmontamitos

Mito: The violin-shaped marking on its back is a reliable way to identify it.

Verdade: The marking may not be visible and is not reliable. Counting the eyes, which are six in three pairs, is more important for identification.1

Para expertos en pezoñas

Nome científico
Loxosceles laeta
Grupo
Arañas
Familia
Sicariidae2
Orde
Araneae
Continentes
América do Sur
Perigo para as persoas
3 / 5: Grave3

De onde veñen os datos

  1. Chilean recluse spider (Wikipedia (CC BY-SA 4.0))
  2. Loxosceles laeta (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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