Venom Wiki / Todas as criaturas / Formigas

N.º 1021 de 1 402

Trap-jaw ant

Odontomachus bauri

Só doeDoe, pero non che fará un dano grave.

Formigas

PicaCome: Carne

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

Trap-jaw ants are small ants with jaws that snap shut faster than almost anything else in the animal kingdom. They live in tropical places from southern Costa Rica to South America and the Galapagos Islands, and they are one of the most common ants around homes and gardens in southern Brazil.1

Vive en

Southern Costa Rica, tropical South America, the West Indies (except Cuba and the Bahamas), the Galapagos Islands and northern Mexico1

América do Norte, América do Sur

Inicio

They are most often found in lowland areas, usually in tropical rainforests, though they tolerate dry conditions better than many related species. In gardens they nest under rocks, plant containers and vegetable residues, so people can meet them around homes.1

Lonxitude

1,2 cm (0,5 in)3

tamaño típico de adulto

Velocidade máxima

uns 0,19 km/h (0,12 mph)

En terra, estimación aproximada

Que come?

It is a generalist predator that usually spends its time below leaf litter. It catches prey such as worms, spiders, termites, ants, butterflies, flies and beetles, with its jaws stinging and paralysing prey or crushing it to death.1

Foto de Trap-jaw ant — Trap-jaw ant. Foto: unknown. CC0, iNaturalist.

Como recoñecelo

Its main feature is its dark brown colour.1
The head is 2.09–3.12 mm long.1
It has hairs on the first gastral tergum (a plate on the upper back of the abdomen), which stand up partly and are fairly even in length.1
Seen from the side, the petiolar node (a small segment between the body parts) is dome-shaped.1
Its mandibles (jaws) can open to about 180°.1

Poder da pezoña

Pica

A pezoña sae por un ferrete.

Que fai a súa pezoña?

Its venom is thought to be mainly protein-based. The sting also releases a mixture of formic acid and protein, which may be highly toxic. In people, a sting usually causes burning at the site that fades within about an hour. Some people have a strong allergic reaction, with red, itchy, swollen patches on the skin and swollen eyelids.1

Que perigoso é para as persoas?

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

Its bites are not severe for humans, but they can cause an allergic reaction. One case described a young girl with a strong reaction that lasted about a week. Such reactions were noted in about 16% of ant bites.1

Que fai cando ten medo?

When its nest is disturbed, many workers make escape jumps, and if one lands on the intruder, workers start stinging it.1

Se pica

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?

África Asia Europa América do Norte América do Sur Australia e Oceanía

Que tamaño ten?

Canto mide?

tan pequeno que cabe na túa unlla

Que tamaño ten Trap-jaw ant comparado CONTIGO?

Só son contas no teu navegador. Non se garda nin se envía nada a ningures.

Que rápido é?

Un caracol de xardín uns 0,05 km/h (0,03 mph)

Trap-jaw ant uns 0,19 km/h (0,12 mph)

Unha tartaruga uns 0,3 km/h (0,19 mph)

paga a pena sabelo

Datos

Its jaws can close within about 130 microseconds on average, roughly 2300 times faster than the blink of an eye.1

It can jump more than 20 times its body length in a single jaw-propelled leap.1

Its jaws can exert a peak force of about 300 times its own body weight.1

During an escape jump, it can launch itself about 7 cm off the ground and grab onto nearby plants.1

Its jaws have the second-fastest predatory movement in the animal kingdom, after the dracula ant.1

Its nests are usually small, with fewer than about 200 ants, and neighbouring nests do not fight when they are close together but are aggressive toward each other when more than 10 m apart.1

Desmontamitos

Mito: Trap-jaw ants sting in the same way as bees.

Verdade: They do not have stingers like bees. Their stings are retractable and not barbed, so they can be used again.1

Para expertos en pezoñas

Nome científico: Odontomachus bauri
Grupo: Formigas
Familia: Formicidae2
Orde: Hymenoptera
Continentes: América do Norte, América do Sur
Crías: The larvae go through three larval stages before moulting, and they do not spin a cocoon.1
Perigo para as persoas: 2 / 5: Doloroso3

De onde veñen os datos

Odontomachus bauri (Wikipedia (CC BY-SA 4.0))
Odontomachus bauri (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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