Nom. 0630 ya 1 402

Southern black widow

Latrodectus mactans

E tlhoka ngakaGa e bolaye gantsi, mme go lomiwa ke yone go tlhoka ngaka.

Go lomaE ja: Nama

Kotsi go batho: E masisiGo lomiwa ke yone go tlhoka ngaka. Go swa go seoka thata.

The southern black widow is a venomous spider that lives in North America. Mature females are shiny black with a red hourglass mark on their underside. Its bite can cause pain and other symptoms, but it is rarely fatal to healthy people.1

E tshela kwa

Native to North America, mainly the southeastern United States. Also found in Mexico and the Dominican Republic, and established in Hawaii (USA).1

Amerika Bokone

Gae

It builds tangled, three-dimensional cobwebs and waits in a retreat near them. One way it has reached Hawaii is through imported produce.1

Boleele

8 mm go ya go 1,3 cm (0,3 in go ya go 0,5 in)1

Lebelo le le kwa godimo

e ka nna 0,98 km/h (0,61 mph)

Mo lefatsheng, kakanyo fela

E ja eng?

It eats a variety of insects, and also woodlice, millipedes, centipedes and other spiders. When prey is caught in its web, it rushes out, wraps the prey tightly in silk, and bites it. It then releases digestive enzymes into the wound and carries the prey back to its retreat to feed.1

Setshwantsho sa Southern black widow — Southern black widow. Setshwantsho: unknown. CC BY 2.0, Wikimedia Commons.

Tsela ya go e lemoga

Mature females are shiny black, with a red hourglass-shaped mark on the underside of a very rounded abdomen.1
Many females have an orange or red patch on the top of the abdomen, just above the spinnerets.1
Mature females have a body length of 8–13 mm, not counting the legs. Males are 3–6 mm.1
Juveniles look very different. They have a grey to black abdomen with white stripes across it, spotted with yellow and orange.1
Males are either purple, or look more like the juveniles.1

Gantsi e tlhakanngwa le: It is often confused with the false widows (genus Steatoda) and with the closely related northern (L. variolus) and western (L. hesperus) black widows.1

Maatla a botlhole

Go loma

Botlhole bo tswa ka meno a yone fa e loma.

Botlhole jo e bo tsenyang bo dira eng?

The venom contains alpha-latrotoxin, a neurotoxic venom that attacks the nerves. It causes pain and other symptoms, which are collectively called latrodectism.1

E kotsi go le kae go batho?

Kotsi go batho: E masisiGo lomiwa ke yone go tlhoka ngaka. Go swa go seoka thata.

Deaths in healthy adults are exceedingly rare. No deaths were reported among 23,409 documented Latrodectus bites in the US from 2000 to 2008, though about 2,000 bites happen each year. Only mature females can bite people.1

Dikgang tse di molemo: dingaka di na le molemo (antivenom) kgotsa kalafi ya se.1

Fa e loma

Tlhatswa fa go lomilweng mme o tsenye pakana ya aese mo go gone go fokotsa botlhoko. Batla thuso ya bongaka fa botlhoko bo le bogolo, bo anama kgotsa motho a ikutlwa a sa siama.

Ka gale leletsa nomoro ya gago ya tshoganyetso pele (112, 000, 911). Se ke kaelo e e akaretsang ya thuso ya ntlha, ga se kgakololo ya bongaka. Motheo wa thuso ya ntlha

Nna o babalesegile

O se ka wa ama, wa tshwara kgotsa wa tshwenya phologolo ya naga, le fa e le e nnye, le fa e lebega e robetse kgotsa e sule.
E fe sebaka. Fa o kopana le yone, ritibala, boela morago ka bonya mme o e tlogele e tsamaye ka tsela ya yone.
Fa e nngwe e go loma: ritibala, o se ka wa tshikinyega, leletsa nomoro ya gago ya tshoganyetso (112, 000, 911) kgotsa o ye bookelong ka bonako. Gopola gore e ne e lebega jang, setshwantsho se a thusa.

Ga e go batle. E dirisa botlhole jwa yone go tshwara dijo kgotsa go itshireletsa, mme e rata go iphitlha go feta. Go le gontsi ka go nna o babalesegile

Kae mo lefatsheng?

Aforika Asia Yuropa Amerika Bokone Amerika Borwa Australia le Oceania

E kgolo go le kae?

E telele go le kae?

e nnye mo e ka nnang mo lenaleng la gago

Southern black widow e kgolo go le kae fa e bapisiwa le WENA?

Ke dipalo fela mo sefetleng sa gago (browser). Ga go sepe se se bolokwang kgotsa se se romelwang gope.

E bonako go le kae?

Khudu e ka nna 0,3 km/h (0,19 mph)

Southern black widow e ka nna 0,98 km/h (0,61 mph)

Motho yo o tsamayang e ka nna 5 km/h (3,1 mph)

go botlhokwa go itse

Dintlha

In 1933, Allan Blair let himself be bitten by one of these spiders to study its venom in humans and to convince sceptics that it could be dangerous.1

Females will occasionally eat their mates after reproduction.1

Only mature females can bite people. Their hollow, needle-like mouthparts are about 1 mm long, which is long enough to inject venom into people.1

The brown widow (Latrodectus geometricus) competes with black widows for territory. In areas where they share space, it can displace them.1

Males live only about three to four months, while females can live for up to three years.1

Mosenyi wa ditlhamane

Tlhamane: A black widow bite is usually fatal.

Nnete: Black widow bites are rarely fatal to healthy people. No deaths from the US species were reported among 23,409 documented bites from 2000 to 2008.1

Ya baitseanape ba botlhole

Leina la saense: Latrodectus mactans
Setlhopha: Digokgo
Lelapa: Theridiidae2
Lekoko: Araneae
Dikontinente: Amerika Bokone
Masea: A female can produce four to nine egg sacs in one summer, each holding about 100–400 eggs, which she guards in a silken container.1
Dingwaga tsa botshelo: e ka nna dingwaga di le 31
Kotsi go batho: 3 / 5: E masisi3

Kwa dintlha di tswang teng

Latrodectus mactans (Wikipedia (CC BY-SA 4.0))
Latrodectus mactans (iNaturalist): maina le thulaganyo ya mefuta.
Venom Wiki: seelo sa kotsi, bogolo jo bo tlwaelegileng le kakanyo ya lebelo ke tsa rona. Bona kafa re di balang ka teng: Kafa re lekanyang kotsi ka teng.

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