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Red imported fire ant

Solenopsis invicta
Sobre o nome: Its species name, invicta, is Latin for "invincible" or "unconquered". It is called the fire ant because its sting causes a burning sensation.1
Só doeDoe, pero non che fará un dano grave.
Formigas PicaCome: Un pouco de todo
Perigo para as persoas: DolorosoPode doer moito, pero case nunca é grave.

The red imported fire ant is an ant that comes from South America. It has spread to Australia, New Zealand, parts of Asia, the Caribbean, Europe and the United States, where it is seen as a serious pest. Its sting burns, and in some people it causes a dangerous allergic reaction.1

Vive en
Native to South America. Introduced to Australia, New Zealand, several Asian and Caribbean countries, Europe and the United States.1
América do Sur
Inicio
It lives in a wide variety of places, including rainforests, deserts, grasslands and disturbed land. It is dominant in altered areas and thrives in urban areas, where it nests alongside roads, buildings and in electrical equipment. Colonies build large soil mounds that have no visible entrances.1
Lonxitude
5 mm (0,2 in)3
tamaño típico de adulto
Velocidade máxima
uns 0,11 km/h (0,07 mph)
En terra, estimación aproximada
Que come?
It eats dead mammals, arthropods, insects, seeds and sweet substances such as honeydew from hemipteran insects, with which it has developed relationships. It forages on warm or hot days, though it may stay outside at night.1
De verdade!Foto de Red imported fire ant
Red imported fire ant. Foto: Judy Gallagher. CC BY 4.0, iNaturalist.

Como recoñecelo

  • Workers are red and somewhat yellowish, with a brown or black rear section (gaster).1
  • Males are completely black.1
  • Workers come in different shapes and sizes.1
  • Colonies form large soil mounds with no visible entrances, because foraging tunnels lead to places far from the nest.1

Poder da pezoña

Pica

A pezoña sae por un ferrete.

Que fai a súa pezoña?

About 95% of its venom is made of water-insoluble piperidine alkaloids called solenopsins, and the rest is a mixture of toxic proteins that can be especially strong in sensitive people. Most stings cause intense burning and swelling, followed by sterile pustules (small fluid-filled bumps) that can last several days. In some people, a severe allergic reaction called anaphylaxis can occur, with dizziness, chest pain, nausea, severe sweating, low blood pressure, shortness of breath and slurred speech.1

Que perigoso é para as persoas?

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

More than 14 million people are stung by these ants each year in the United States, and many are expected to develop allergies to the venom. Between 0.6% and 6.0% of people may suffer anaphylaxis, which can be fatal if left untreated. More than 80 deaths have been recorded from attacks by this ant.1

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

Que fai cando ten medo?

It uses its venom and chemical signals (pheromones) to defend itself and its nest.1

Se pica

  • People who only have pain and pustules need no medical attention. People who develop anaphylaxis need emergency treatment with adrenaline. Whole body extract immunotherapy is used to treat people who are allergic and is regarded as highly effective.1
  • Lava e arrefría as picaduras.
  • Se a persoa ten dificultade para respirar, a cara ou a gorxa inchadas, ou sente que se vai desmaiar, é unha emerxencia alérxica: chama ao teu número de emerxencias.

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 pica: 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?

Red imported fire ant mide uns 5 mm (0,2 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 Red imported fire ant 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

When water levels rise, these ants build rafts to float on.1

2

A single mature colony can contain between 500,000 and 2,000,000 individuals.1

3

Over 1,800 scientific papers have been published using its name, and it is one of the most studied insects on the planet, rivalling the western honey bee.1

4

Workers dispose of scraps and dead ants on refuse piles outside the nest, a behaviour called necrophoric behaviour.1

5

Workers can live for several months, while queens can live for years.1

Desmontamitos

Mito: The name "fire ant" comes from fire or burning nests.

Verdade: The name comes from the burning sensation caused by its sting.1

Para expertos en pezoñas

Nome científico
Solenopsis invicta
Grupo
Formigas
Familia
Formicidae2
Orde
Hymenoptera
Continentes
América do Sur
Crías
Winged males and queens mate during a nuptial flight in the warm seasons. A colony can be started by a single queen or by a group of queens, which later compete for dominance once the first workers emerge.1
Perigo para as persoas
2 / 5: Doloroso3

De onde veñen os datos

  1. Red imported fire ant (Wikipedia (CC BY-SA 4.0))
  2. Solenopsis invicta (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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Máis do mesmo grupo: Formigas

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Tamén vive en: América do Sur

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