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Wheel bug

Arilus cristatus

Sakit sahajaIa sakit, tetapi tidak akan mencederakan kamu dengan serius.

Ulat bulu & serangga

GigitanMakan: Daging

Bahaya kepada manusia: MenyakitkanIa boleh jadi sangat sakit, tetapi hampir tidak pernah serius.

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

Hidup di

Eastern Canada, the United States, Mexico and Guatemala1

Amerika Utara

Laman utama

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

Panjang

3.8 cm (1.5 in)1

Kelajuan maksimum

kira-kira 0.65 km/j (0.4 mph)

Di darat, anggaran kasar

Apa yang ia makan?

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

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

Cara mengenalinya

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

Kuasa bisa

Gigitan

Bisa keluar melalui taring atau giginya apabila ia menggigit.

Apa kesan bisanya?

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

Berapa bahaya ia kepada manusia?

Bahaya kepada manusia: MenyakitkanIa boleh jadi sangat sakit, tetapi hampir tidak pernah serius.

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

Apa yang ia buat apabila takut?

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

Jika ia menggigit

Untuk bulu ulat yang menyengat: angkat bulu itu dengan pita pelekat, kemudian basuh kulit. Jangan gosok.
Untuk gigitan: basuh dan sejukkan. Dapatkan bantuan perubatan jika orang itu berasa tidak sihat atau mudah berdarah.

Sentiasa hubungi nombor kecemasan dahulu (112, 000, 911). Ini panduan pertolongan cemas umum, bukan nasihat perubatan. Asas pertolongan cemas

Kekal selamat

Jangan sesekali sentuh, tangkap atau usik haiwan liar, walaupun yang kecil, dan walaupun ia nampak tidur atau mati.
Beri ia ruang. Jika kamu terjumpa, bertenang, undur perlahan-lahan dan biarkan ia pergi.
Jika ia menggigit kamu: bertenang, jangan bergerak, hubungi nombor kecemasan (112, 000, 911) atau pergi ke hospital dengan segera. Ingat rupanya, gambar boleh membantu.

Ia bukan mahu memburu kamu. Ia guna bisanya untuk menangkap makanan atau melindungi diri, dan ia lebih suka bersembunyi. Lagi tentang keselamatan

Di mana di dunia?

Afrika Asia Eropah Amerika Utara Amerika Selatan Australia & Oceania

Berapa besar ia?

Berapa panjang ia?

lebih kurang sepanjang klip kertas

Berapa besar Wheel bug berbanding KAMU?

Hanya matematik dalam pelayar kamu. Tiada apa yang disimpan atau dihantar ke mana-mana.

Berapa laju ia?

Kura-kura darat kira-kira 0.3 km/j (0.19 mph)

Wheel bug kira-kira 0.65 km/j (0.4 mph)

Orang berjalan kira-kira 5 km/j (3.1 mph)

berguna untuk diketahui

Fakta

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

Untuk pakar bisa

Nama saintifik: Arilus cristatus
Kumpulan: Ulat bulu & serangga
Keluarga: Reduviidae2
Susunan: Hemiptera
Benua-benua: Amerika Utara
Anak: 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
Bahaya kepada manusia: 2 / 5: Menyakitkan3

Dari mana fakta datang

Arilus cristatus (Wikipedia (CC BY-SA 4.0))
Arilus cristatus (iNaturalist): nama dan pengelasan.
Venom Wiki: tahap bahaya, saiz biasa dan anggaran kelajuan adalah penilaian kami sendiri. Lihat cara kami mengiranya: Cara kami menilai bahaya.

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