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Hobo spider

Eratigena agrestis

Tentang nama: The genus name Eratigena is an anagram of Tegenaria, the genus it was moved out of in 2013.1

Tidak berbahayaTidak berbahaya kepada manusia. Tiada apa yang perlu dirisaukan.

Labah-labah

GigitanMakan: Serangga

Bahaya kepada manusia: RinganSeperti sengatan lebah atau kurang. Boleh dikatakan tidak berbahaya kepada manusia.

The hobo spider is a brown spider that lives in fields, woods and under rocks in Europe, Central Asia and western North America. It builds a funnel-shaped sheet of silk and waits at the narrow end for insects to crawl on. It sometimes builds webs in or around homes, so people often worry about its bite.1

Hidup di

Europe to Central Asia, and western North America (Pacific Northwest and Great Basin)1

Eropah, Asia

Laman utama

Hobo spiders live mostly in fields, woods and under rocks. They sometimes build webs in or around human homes. They often make a horizontal, trampoline-like web near brick walls or wood piles, where they have shelter and wait for prey.1

Panjang

1.4 cm (0.6 in)1

Kelajuan maksimum

kira-kira 1 km/j (0.62 mph)

Di darat, anggaran kasar

Apa yang ia makan?

Hobo spiders catch prey insects that blunder onto their funnel webs. They wait at the small end of the funnel for the insects to arrive.1

Gambar Hobo spider — Hobo spider. Gambar: Tone Killick. CC BY 4.0, iNaturalist.

Cara mengenalinya

Body length is 7 to 14 mm, and the spider is brownish in colour.1
The abdomen has V-shaped chevron patterns down the middle, pointing towards the head.1
There is a light stripe running down the middle of the underside (sternum).1
There are no coloured bands where the leg joints meet.1
The top of the front body section (cephalothorax) has indistinct or diffused patterns, not two distinct dark stripes.1

Sering dikelirukan dengan: Other Eratigena species have three or four pairs of light spots on the sides of the sternum rather than a central stripe, though these spots can be very faint. Spiders in the genera Agelenopsis and Hololena, and possibly some wolf spiders, have two distinct dark stripes on the top of the front body section. Positive identification of hobo spiders usually requires microscopic examination of their sex organs by an expert.1

Kuasa bisa

Gigitan

Bisa keluar melalui taring atau giginya apabila ia menggigit.

Apa kesan bisanya?

There is no clear evidence that the hobo spider has venom that is dangerous to humans. Earlier case reports linked its bites to isolated cases of necrosis, which is the death of skin tissue, but this is no longer supported.1

Berapa bahaya ia kepada manusia?

Bahaya kepada manusia: RinganSeperti sengatan lebah atau kurang. Boleh dikatakan tidak berbahaya kepada manusia.

There is little evidence that the hobo spider is dangerously venomous. The US CDC no longer lists it among venomous species, as of 2017. In Canada there is no evidence that its bites cause skin necrosis.1

Jika ia menggigit

Basuh tempat gigitan dan letakkan pek ais untuk menghilangkan sakit. Dapatkan bantuan perubatan jika sakitnya kuat, merebak atau orang itu berasa tidak sihat.

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?

cukup kecil untuk duduk di atas kuku kamuboleh melepasi 100 meter dalam 360 saat (manusia paling laju perlukan 9.6)

Berapa besar Hobo spider 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)

Hobo spider kira-kira 1 km/j (0.62 mph)

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

berguna untuk diketahui

Fakta

In Europe, hobo spiders mostly avoid houses because the larger giant house spider lives there and competes with them, so human contact is uncommon.1

The male hobo spider dies after mating.1

A hobo spider was probably carried to the small artificial Danish island of Peberholm by trains.1

Pemecah mitos

Mitos: Hobo spiders have dangerous venom that causes skin necrosis.

Hakikat: There is little clear evidence that the hobo spider's venom is dangerous to humans. Some bites reported as hobo spider bites may have been from the desert grass spider.1

Untuk pakar bisa

Nama saintifik: Eratigena agrestis
Kumpulan: Labah-labah
Keluarga: Agelenidae2
Susunan: Araneae
Benua-benua: Eropah, Asia
Anak: Females lay eggs in September, and they hatch during late spring.1
Bahaya kepada manusia: 1 / 5: Ringan3

Dari mana fakta datang

Hobo spider (Wikipedia (CC BY-SA 4.0))
Eratigena agrestis (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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