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Giant house spider

Eratigena atrica

Gbasara aha ya: The species name atrica means 'from the atrium', which may refer to a greenhouse where the first specimen was found or to its habit of living in houses.1

Adịghị njọỌ dịghị njọ nye mmadụ. Ọ dịghị ihe ị ga-echegbu onwe gị.

Ududo

Ịta

Ihe ize ndụ nye mmadụ: ObereDị ka ịgba aṅụ ma ọ bụ nke na-erughị ya. Ọ fọrọ nke nta ka ọ ghara ịdị njọ nye mmadụ.

The giant house spider is a large, brown spider that often lives indoors, especially in Europe, where it is native. It is also found in parts of North America, where it was introduced. Its bite is not considered dangerous to people or pets.1

Ebe obibi

Native to Europe. Introduced to North America, including British Columbia, Montana, Quebec, Newfoundland and Nova Scotia.1

Yurop

Ụlọ

Giant house spiders often live in buildings. They favour hidden spots such as behind crates, around windows and under furniture.1

Ogologo

1.9 cm (0.7 in)1

Ọsọ kacha elu

ihe dị ka 1.9 km/h (1.2 mph)

N'elu ala: ọ bụbu onye nwere ndekọ nke ududo kacha ọsọ

Foto Giant house spider — Giant house spider. Foto: Ludivine Lamare. CC BY 4.0, iNaturalist.

Otú ị ga-esi mata ya

Mainly dark-brown body, in earthy tones of brown and muddy-red or yellow.1
A lighter arrow-shaped marking on the front part of the body (the sternum), with three light spots on each side.1
A lighter middle line on the abdomen, with six light spots on each side.1
Conspicuously hairy legs, palps and abdomen.1
Females reach up to 18.5 mm in body length. Males are slightly smaller, at around 12 to 15 mm. Males have larger palps and a slimmer abdomen than females.1

A na-agwakọkarị ya na: The giant house spider has the same colouring as the domestic house spider, Tegenaria domestica. The two closest relatives, E. duellica and E. saeva, look the same as E. atrica. The three species can only be separated by microscopic measurements of the body parts.1

Ike nsị

Ịta

Nsị na-esi n'eze nsị ya ma ọ bụ eze ya apụta mgbe ọ na-ata.

Kedu otú o si dị egwu nye mmadụ?

Ihe ize ndụ nye mmadụ: ObereDị ka ịgba aṅụ ma ọ bụ nke na-erughị ya. Ọ fọrọ nke nta ka ọ ghara ịdị njọ nye mmadụ.

Bites are not considered dangerous to humans or pets.1

Ọ bụrụ na ọ tara

Saa ebe ọ tara, tinye akpa ice n'elu ya maka mgbu ahụ. Chọọ enyemaka ọgwụ ma ọ bụrụ na mgbu ahụ siri ike, gbasaa, ma ọ bụ na ahụ adịghị onye ahụ mma.

Na-ebu ụzọ kpọọ nọmba mberede gị mgbe niile (112, 000, 911). Nke a bụ ndụmọdụ enyemaka mbụ n'ozuzu, ọ bụghị ndụmọdụ ọgwụ. Isi ihe enyemaka mbụ

Nọrọ na nchekwa

Emetụla anụ ọhịa aka, ejidela ya, emekwala ya ihe ọjọọ, ọbụna obere, ọbụna ma ọ dị ka ọ na-ehi ụra ma ọ bụ nwụọ anwụ.
Nye ya ohere. Ọ bụrụ na ị zutere otu, dị jụụ, laghachi azụ nwayọ, hapụ ya ka ọ gaa ụzọ ya.
Ọ bụrụ na otu tara gị: dị jụụ, emegharịla ahụ, kpọọ nọmba mberede gị (112, 000, 911) ma ọ bụ gaa ụlọ ọgwụ ngwa ngwa. Cheta ka o si dị, foto na-enye aka.

Ọ naghị achụ gị. Ọ na-eji nsị ya ejide nri ma ọ bụ chebe onwe ya, ọ ga-akakwa mma n'anya ya ịzo onwe ya. Ihe ndị ọzọ gbasara ịnọ na nchekwa

Ebee n'ụwa?

Afrịka Eshia Yurop Ugwu Amerika Ndịda Amerika Ọstrelia na Oshenia

Ọ hà aṅaa?

Kedu otú o si dị ogologo?

dị mkpụmkpụ karịa obere mkpịsị aka gịnwere ike ịgba ọsọ mita 100 n'ime sekọnd 190 (mmadụ kacha ọsọ chọrọ 9,6)

Kedu otú Giant house spider si hà ma e jiri ya tụnyere GỊ?

Naanị mgbakọ na mwepụ n'ime browser gị. Ọ dịghị ihe echekwara ma ọ bụ ezigara ebe ọ bụla.

Kedu otú o si agba ọsọ?

Mbe ihe dị ka 0.3 km/h (0.19 mph)

Giant house spider ihe dị ka 1.9 km/h (1.2 mph)

Mmadụ na-aga ije ihe dị ka 5 km/h (3.1 mph)

ọ dị mma ịmara

Eziokwu

The eyes are all the same size and sit in two rows. They contain few visual cells, so the spider can probably only tell light from dark.1

Until 2018, the giant house spider was treated as one species. Research then showed three separate species, which can only be told apart under a microscope.1

Males wander while searching for females during mating season, which runs from late summer into autumn. This is when they are most often noticed.1

Males have no Y chromosome. Males carry X1 and X2, and females carry two pairs of X chromosomes. This form of sex determination is the most common in spiders and is probably the ancestral form.1

Maka ndị ọkachamara nsị

Aha sayensị: Eratigena atrica
Otu: Ududo
Ezinụlọ: Agelenidae2
Usoro: Araneae
Kọntinent dị iche iche: Yurop
Ihe ize ndụ nye mmadụ: 1 / 5: Obere3

Ebe eziokwu ndị a si

Eratigena atrica (Wikipedia (CC BY-SA 4.0))
Eratigena atrica (iNaturalist): aha na nhazi ọkwa.
Venom Wiki: ọkwa ihe ize ndụ, nha nkịtị na nchepụta ọsọ bụ nke anyị. Lee otú anyị si achọpụta ha: Otú anyị si atụ ihe ize ndụ.

Eziokwu ọ bụla dị na peeji a nwere nọmba na-egosi ebe o si. Ọ bụrụ na anyị mehiere ihe, ndo, anyị bụ ndị hụrụ anụmanụ n'anya, ọ bụghị akwụkwọ akụkọ sayensị. Gwa anyị na [email protected], anyị ga-edozi ya.

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