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Inombolo 0631 kwezingu-1 402

Western black widow

Latrodectus hesperus

Kudinga udokotelaKuyivelakancane ukuthi kubulale, kodwa ukulunywa kudinga udokotela.

Izicabucabu

UkulumaSidla: Inyama

Ingozi ebantwini: Kubi kakhuluUkulunywa kudinga udokotela. Ukufa kuyivelakancane kakhulu.

The western black widow is a venomous spider that lives in western North America. The female is black, often with a red hourglass mark on her belly, and her webs are tangled and irregular. Her venom is strong, so it is worth knowing what she looks like.1

Ihlala

Western North America: south-western Canada (British Columbia to Manitoba), the Pacific Coast, Texas, Oklahoma, Kansas, and Mexico1

INyakatho Melika

Ekhaya

It builds tangled webs low above the ground. It is commonly found near the Canada-US border and less commonly across the grasslands of the Canadian Prairies.1

Ubude

1.4 cm kuya ku-1.6 cm (0.6 in kuya ku-0.6 in)1

Ijubane eliphezulu

cishe 0.98 km/h (0.61 mph)

Emhlabathini, isiqagela nje

Sidlani?

It hangs upside down near the centre of its web and waits for insects to land in it. It bites the prey, injects venom, and wraps it in silk. Beetles and ants, wasps and bumblebees make up most of its prey.1

Isithombe sika-Western black widow — Western black widow. Isithombe: Luke Padon. CC BY 4.0, iNaturalist.

Indlela yokusibona

The female is about 14–16 mm long and black, often with an hourglass-shaped mark on the lower abdomen.1
The hourglass mark is usually red, but it can be yellow and, very rarely, white.1
The male is about half the female's length and is generally beige, with lighter striping on the abdomen.1
Its webs are irregular or tangled, with no obvious overall pattern.1

Ivamise ukudidaniswa ne: It was once described as a subspecies of Latrodectus mactans and is closely related to the northern species Latrodectus variolus.1

Amandla obuthi

Ukuluma

Ubuthi buphuma ngamazinyo aso obuthi noma ngamazinyo uma siluma.

Ubuthi baso benzani?

The female's venom contains a neurotoxin called α-latrotoxin, which attacks the nerves. In humans, its symptoms include pain, nausea, vomiting, goosebumps and localised sweating.1

Siyingozi kangakanani ebantwini?

Ingozi ebantwini: Kubi kakhuluUkulunywa kudinga udokotela. Ukufa kuyivelakancane kakhulu.

Historical reports gave fatality rates between 0.5% and 12%. However, recent studies have not been able to confirm any deaths from the U.S. species of Latrodectus, including zero deaths among 23,409 documented bites from 2000 through 2008.1

Senzani uma sesabile?

Juveniles and females can fling a sticky ball of silk at predators, which can stop most of them.1

Uma siluma

Geza inxeba lokulunywa bese ubeka iphakethe leqhwa phezu kwalo ngenxa yobuhlungu. Thola usizo lwezokwelapha uma ubuhlungu bunamandla, busabalala noma umuntu ezizwa engaphilile.

Njalo shayela kuqala inombolo yezimo eziphuthumayo (112, 000, 911). Lokhu kuyiseluleko sosizo lokuqala esijwayelekile, akusona iseluleko sezokwelapha. Izisekelo zosizo lokuqala

Hlala uphephile

Ungalokothi uthinte, ubambe noma ugcone isilwane sasendle, ngisho noma sincane, futhi ngisho noma sibukeka silele noma sifile.
Sinike isikhala. Uma uhlangana naso, hlala uzolile, uhlehle kancane bese usiyeka sihambe ngendlela yaso.
Uma sikuluma: hlala uzolile, ungashukumi, shayela inombolo yezimo eziphuthumayo (112, 000, 911) noma uye esibhedlela ngokushesha. Khumbula ukuthi besibukeka kanjani, isithombe siyasiza.

Asikuzingeli wena. Sisebenzisa ubuthi baso ukuze sibambe ukudla noma ukuzivikela, futhi singancamela ukucasha. Okwengeziwe mayelana nokuhlala uphephile

Kuphi emhlabeni?

I-Afrika I-Asia I-Yurophu INyakatho Melika INingizimu Melika I-Australia ne-Oceania

Sikhulu kangakanani?

Side kangakanani?

sifushane kunomunwe wakho omncane

Western black widow mkhulu kangakanani uma uqhathanisa NAWE?

Yizibalo nje kusiphequluli sakho. Akukho okulondolozwayo noma okuthunyelwa ndawo.

Sishesha kangakanani?

Ufudu cishe 0.3 km/h (0.19 mph)

Western black widow cishe 0.98 km/h (0.61 mph)

Umuntu ohambayo cishe 5 km/h (3.1 mph)

kuhle ukwazi

Amaqiniso

When prey hits a gumfoot thread, the thread breaks and creates tension that pulls the line and prey up to the spider.1

This spider is an opportunistic cannibal, and it may eat other members of its own kind when prey is scarce, when it is very hungry, or in self-defence.1

The silk is strongly sticky, and its strength is similar to that of silk from orb-weaving spiders.1

Males can be preferred by females based on the webs, with well-fed females chosen over starved ones.1

Males may mate several times during their relatively short lives.1

Umqothuli wezinganekwane

Inganekwane: A black widow bite is usually deadly.

Iqiniso: Recent studies have not confirmed any deaths from the U.S. species of Latrodectus, including zero deaths among 23,409 documented bites from 2000 through 2008.1

Okongoti bobuthi

Igama lesayensi: Latrodectus hesperus
Iqembu: Izicabucabu
Umndeni: Theridiidae2
Ukuhleleka: Araneae
Amazwekazi: INyakatho Melika
Izinsana: Females produce egg sacs, and the young are born in the months from May to October.1
Ingozi ebantwini: 3 / 5: Kubi kakhulu3

Lapho amaqiniso evela khona

Latrodectus hesperus (Wikipedia (CC BY-SA 4.0))
Latrodectus hesperus (iNaturalist): amagama nokuhlelwa ngezigaba.
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