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Wheel bug

Arilus cristatus

Min ematen du, besterik ezMin ematen du, baina ez dizu kalte larririk egingo.

Beldarrak eta zomorroak

KoskaJaten du: Haragia

Arriskua pertsonentzat: MingarriaBenetan min handia eman dezake, baina ia inoiz ez da larria.

The wheel bug is a large assassin bug with a wheel-shaped crest on its back. It is the only wheel bug found in the United States, and it hunts caterpillars and beetles. Gardeners value it because it helps keep pests down.1

Non bizi den

Eastern Canada, the United States, Mexico and Guatemala1

Ipar Amerika

Hasiera

It lives in leafy areas and is most active in daylight, hiding whenever it can. It is found on sunflowers, goldenrod, cotton, locust tree trunks, and in fruit and tree groves.1

Luzera

3,8 cm (1,5 in)1

Abiadura handiena

0,65 km/h inguru (0,4 mph)

Lehorrean, kalkulu gutxi gorabeherakoa

Zer jaten du?

It grips and pins prey with its front legs, then pushes its beak into the victim. It injects enzymes that paralyse the prey and dissolve its insides, then drains the fluids. It commonly preys on caterpillars and beetles, including Japanese beetles and Mexican bean beetles.1

Argazkia: Wheel bug — Wheel bug. Argazkia: gailhampshire. CC BY 4.0, iNaturalist.

Nola ezagutu

Adults are grey to brownish grey, and black shortly after moulting.1
Adults have a wheel-shaped or cog-shaped ridge on the back of the thorax. Young nymphs do not have this wheel yet.1
Nymphs have a bright red or orange abdomen.1
Adults can grow up to 38 mm long. Females are somewhat larger than males.1
They move and fly slowly, and make a noisy buzzing sound in flight.1

Pozoi-ahalmena

Koska

Pozoia letaginetatik edo hortzetatik ateratzen da kosk egiten duenean.

Zer egiten du bere pozoiak?

The bug injects enzymes into its prey that paralyse it and dissolve its insides. Its bite is not considered highly venomous. In people, the bite causes a wound that is very painful and lingering, with the area becoming hot and irritated, and numbness that can last for days.1

Zein arriskutsua da pertsonentzat?

Arriskua pertsonentzat: MingarriaBenetan min handia eman dezake, baina ia inoiz ez da larria.

The bite is not considered highly venomous, so it is not serious in the short term. Discomfort may last for two weeks, and in some cases up to six months. Longer-lasting problems are often linked to allergic reactions or repeated infections of the wound.1

Zer egiten du beldurtzen denean?

When threatened, it relies on camouflage, its bite, or unpleasant odours from two scent glands in its abdomen.1

Kosk egiten badu

Beldar ziztatzaileen ileak: kendu zinta itsaskorrarekin, eta gero garbitu azala. Ez igurtzi.
Koskak: garbitu eta hoztu. Lortu mediku-laguntza pertsona gaizki sentitzen bada edo erraz odoltzen bada.

Deitu beti lehenik zure larrialdi-zenbakira (112, 000, 911). Lehen sorospenei buruzko orientabide orokorra da hau, ez mediku-aholkua. Lehen sorospenen oinarriak

Egon seguru

Ez ukitu, ez harrapatu eta ez zirikatu inoiz animalia basati bat, txikia izan arren, eta lo edo hilda dagoela badirudi ere.
Utzi tartea. Bat aurkitzen baduzu, egon lasai, egin atzera poliki eta utzi bere bidetik joaten.
Batek kosk egiten badizu: egon lasai, egon geldi, deitu zure larrialdi-zenbakira (112, 000, 911) edo joan ospitalera azkar. Gogoratu nolakoa zen, argazki batek laguntzen du.

Ez dabil zure atzetik. Pozoia janaria harrapatzeko edo bere burua babesteko erabiltzen du, eta askoz nahiago du ezkutatu. Seguru egoteari buruz gehiago

Munduko zein tokitan?

Afrika Asia Europa Ipar Amerika Hego Amerika Australia eta Ozeania

Zein handia da?

Zein luzea da?

klip bat bezain luzea, gutxi gorabehera

Zein handia da Wheel bug ZUREKIN alderatuta?

Matematika hutsa zure nabigatzailean. Ez da ezer gordetzen, ezta inora bidaltzen ere.

Zein azkarra da?

Dortoka bat 0,3 km/h inguru (0,19 mph)

Wheel bug 0,65 km/h inguru (0,4 mph)

Oinez doan pertsona bat 5 km/h inguru (3,1 mph)

jakin beharrekoa

Datuak

It is cannibalistic. Nymphs may prey on each other, and a female may feed on the male after mating.1

It can make a sound by rubbing the tip of its beak in a groove under its thorax. The purpose is unknown, but it may be a way of communicating.1

Nymphs are predators as soon as they hatch, but the wheel only appears after the final moult into adulthood.1

It can prey on useful insects such as lady beetles and honey bees, as well as pests.1

It is one of the largest true bugs in North America.1

In a laboratory test, parasitic wasps attacked 10 of 12 egg clusters, stopping many eggs from hatching normally.1

Pozoi-adituentzat

Izen zientifikoa: Arilus cristatus
Taldea: Beldarrak eta zomorroak
Familia: Reduviidae2
Ordena: Hemiptera
Kontinenteak: Ipar Amerika
Kumeak: After mating in autumn, a female lays 40 to 200 small, brown, cylindrical eggs in a glued cluster on trees, bushes, twigs and other objects. The eggs hatch the following spring.1
Arriskua pertsonentzat: 2 / 5: Mingarria3

Datuak nondik datozen

Arilus cristatus (Wikipedia (CC BY-SA 4.0))
Arilus cristatus (iNaturalist): izenak eta sailkapena.
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