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Red imported fire ant

Solenopsis invicta

Sobre el nom: Its species name, invicta, is Latin for "invincible" or "unconquered". It is called the fire ant because its sting causes a burning sensation.1

Només fa malFa mal, però no et farà cap mal greu.

Formigues

PicadesMenja: Una mica de tot

Perill per a les persones: DolorósPot fer molt de mal, però gairebé mai no és greu.

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

Viu a

Native to South America. Introduced to Australia, New Zealand, several Asian and Caribbean countries, Europe and the United States.1

Amèrica del Sud

Inici

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

Llargada

5 mm (0,2 in)3

mida adulta típica

Velocitat màxima

uns 0,11 km/h (0,07 mph)

A terra, estimació aproximada

Què menja?

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

Foto de Red imported fire ant — Red imported fire ant. Foto: Judy Gallagher. CC BY 4.0, iNaturalist.

Com reconèixer-lo

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 del verí

Picades

El verí surt per un fibló.

Què fa el seu verí?

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

Com de perillós és per a les persones?

Perill per a les persones: DolorósPot fer molt de mal, però gairebé mai no és greu.

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

Bona notícia: els metges tenen un medicament (l'antiverí) o un tractament per a això.1

Què fa quan té por?

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

Si 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
Renta i refreda les picades.
Si a la persona li costa respirar, se li infla la cara o la gola, o sent que es mareja, és una emergència al·lèrgica: truca al número d'emergències.

Truca sempre primer al número d'emergències (112, 000, 911). Això són pautes generals de primers auxilis, no consells mèdics. Primers auxilis bàsics

Estigues segur

No toquis, atrapis ni molestis mai un animal salvatge, encara que sigui petit i encara que sembli adormit o mort.
Deixa-li espai. Si en trobes un, mantén la calma, recula a poc a poc i deixa que segueixi el seu camí.
Si te'n pica un: mantén la calma, no et moguis, truca al número d'emergències (112, 000, 911) o ves de pressa a un hospital. Recorda com era, una foto ajuda.

No va a per tu. Fa servir el verí per caçar o per defensar-se, i prefereix mil vegades amagar-se. Més sobre com estar segur

On del món?

Àfrica Àsia Europa Amèrica del Nord Amèrica del Sud Austràlia i Oceania

Que gran és?

Quant fa de llarg?

tan petit que cap a la teva ungla

Que gran és Red imported fire ant comparat amb TU?

Només càlculs al teu navegador. No es desa ni s'envia res enlloc.

Com de ràpid va?

Un cargol de jardí uns 0,05 km/h (0,03 mph)

Red imported fire ant uns 0,11 km/h (0,07 mph)

Una tortuga uns 0,3 km/h (0,19 mph)

val la pena saber-ho

Dades

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

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

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

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

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

Desmuntamites

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

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

Per a experts en verins

Nom científic: Solenopsis invicta
Grup: Formigues
Família: Formicidae2
Ordre: Hymenoptera
Continents: Amèrica del Sud
Cries: 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
Perill per a les persones: 2 / 5: Dolorós3

D'on surten les dades

Red imported fire ant (Wikipedia (CC BY-SA 4.0))
Solenopsis invicta (iNaturalist): noms i classificació.
Venom Wiki: el nivell de perill, la mida típica i la velocitat estimada són nostres. Mira com els calculem: Com valorem el perill.

Cada dada d'aquesta pàgina té un número que porta a la seva font. Si ens hem equivocat en alguna cosa, perdona, som fans dels animals, no una revista científica. Escriu-nos a [email protected] i ho arreglarem.

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