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Negev widow

Latrodectus revivensis

Naanị na-afụ ụfụỌ na-afụ ụfụ, mana ọ gaghị emerụ gị ahụ nke ukwuu.

ỊtaNri ya: Anụ

Ihe ize ndụ nye mmadụ: Na-afụ ụfụỌ nwere ike ịfụ ụfụ nke ukwuu, mana ọ naghị adịkarị njọ.

The Negev widow is a venomous spider that lives in the hot, dry deserts of the Negev and the Arava valley. It builds large webs in bushes and brush, where it hunts insects at night. Its bite can cause latrodectism, the illness caused by widow spider venom.1

Ebe obibi

Negev desert and the Arava valley (Arabah)1

Eshia

Ụlọ

It lives in arid deserts and builds its webs in bushes and other brush across large open areas of land. It prefers individual plants that are taller in height, such as those from the Zygophyllum and Artemisia groups.1

Ogologo

1.9 cm (0.7 in)1

Ọsọ kacha elu

ihe dị ka 0.92 km/h (0.57 mph)

N'elu ala, nchepụta

Gịnị ka ọ na-eri?

It mainly eats terrestrial insects such as beetles and ants, and also eats other arachnids such as scorpions. Prey is caught in silk strands that hang from the capture platform of the web and reach the ground.1

Foto Negev widow — Negev widow. Foto: Kian. CC BY 4.0, iNaturalist.

Otú ị ga-esi mata ya

Females are very dark brown. Pregnant females are light brown with a pale golden hue.1
Males are brown with a patterned abdomen in various shades of brown, and may have grey-white spots and stripes on the abdomen.1
Females measure 9 to 19 mm long. Males measure 3 to 7 mm long.1
The web has a funnel of tightly woven silk near the top of the bush, often decorated with debris such as bits of plant, sand, rocks and snail shells.1

Ike nsị

Ịta

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

Gịnị ka nsị ọ na-agba na-eme?

Its venom is the widow type and can cause latrodectism, which is the illness caused by bites from widow spiders. It has been reported that its venom is about as potent as that of Latrodectus tredecimguttatus.1

Kedu otú o si dị egwu nye mmadụ?

Ihe ize ndụ nye mmadụ: Na-afụ ụfụỌ nwere ike ịfụ ụfụ nke ukwuu, mana ọ naghị adịkarị njọ.

Gịnị ka ọ na-eme mgbe ụjọ tụrụ ya?

During the day it hides from sight under the densely silk-lined nest area of its web, and it is mainly active at night.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 gị

Kedu otú Negev widow 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)

Negev widow ihe dị ka 0.92 km/h (0.57 mph)

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

ọ dị mma ịmara

Eziokwu

After mating, the male may escape being eaten by living in the nest with the female for a time, but in other cases the female eats him.1

Its web has separate areas for nesting and for catching prey, and it also helps keep the spider cool by providing shade in summer.1

Its webs often include a funnel of silk decorated with debris, which may help hide the spider from predators such as birds flying overhead.1

The web's silk carries pheromones that help males find female nests.1

Its colour darkens after each moult, so the spider becomes darker as it grows older.1

Maka ndị ọkachamara nsị

Aha sayensị: Latrodectus revivensis
Otu: Ududo
Ezinụlọ: Theridiidae2
Usoro: Araneae
Kọntinent dị iche iche: Eshia
Ihe ize ndụ nye mmadụ: 2 / 5: Na-afụ ụfụ3

Ebe eziokwu ndị a si

Latrodectus revivensis (Wikipedia (CC BY-SA 4.0))
Latrodectus revivensis (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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