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Western black widow

Latrodectus hesperus

Kufuna ugqirhaKunqabile ukuba sibulale, kodwa ukulunywa kufuna ugqirha.

Izigcawu

UkulumaSitya: Inyama

Ingozi ebantwini: Kubi kakhuluUkulunywa kufuna ugqirha. Ukufa kunqabe 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

Sihlala

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

uMntla 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 ukuya ku-1,6 cm (0,6 in ukuya ku-0,6 in)1

Esona santya siphezulu

malunga ne-0,98 km/h (0,61 mph)

Emhlabeni, uqikelelo nje

Sitya ntoni?

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

Ifoto ka-Western black widow — Western black widow. Ifoto: Luke Padon. CC BY 4.0, iNaturalist.

Indlela yokusiqaphela

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

Sidla ngokubhidaniswa no: It was once described as a subspecies of Latrodectus mactans and is closely related to the northern species Latrodectus variolus.1

Amandla etyhefu yokuluma nokuhlaba

Ukuluma

Ityhefu iphuma ngamazinyo aso etyhefu okanye ngamazinyo aso xa siluma.

Ityhefu yaso yokuluma okanye yokuhlaba yenza ntoni?

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 kufuna ugqirha. Ukufa kunqabe 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

Senza ntoni xa soyika?

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

Ukuba siyaluma

Hlamba indawo elunyiweyo uze ubeke ipakethi yomkhenkce kuyo ngenxa yeentlungu. Fumana uncedo lwezonyango ukuba iintlungu zinamandla, ziyasasazeka okanye umntu uziva engaphilanga kakuhle.

Soloko utsalela inombolo kaxakeka kuqala (112, 000, 911). Esi sisikhokelo soncedo lokuqala ngokubanzi, asilocebiso lwezonyango. Iziseko zoncedo lokuqala

Hlala ukhuselekile

Ungaze uchukumise, ubambe okanye uqhule isilwanyana sasendle, nokuba sincinci, kwaye nokuba sibonakala silele okanye sifile.
Sinike indawo. Ukuba udibana naso, hlala uzolile, buyela umva kancinci kwaye usiyeke sihambe ngendlela yaso.
Ukuba siyakuluma: hlala uzolile, musa ukushukuma, tsalela inombolo kaxakeka (112, 000, 911) okanye uye esibhedlele ngokukhawuleza. Khumbula ukuba sasikhangeleka njani, ifoto iyanceda.

Asikuzingeli. Sisebenzisa ityhefu yaso ukubamba ukutya okanye ukuzikhusela, kwaye singakhetha ukuzimela. Okungakumbi malunga nokuhlala ukhuselekile

Phi emhlabeni?

IAfrika IAsiya IYurophu uMntla Melika uMzantsi Melika IOstreliya neOceania

Sikhulu kangakanani?

Side kangakanani?

mfutshane kunomnwe wakho omncinci

U-Western black widow mkhulu kangakanani xa uthelekisa NAWE?

Zizibalo nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwa naphi na.

Sikhawuleza kangakanani?

Ufudo malunga ne-0,3 km/h (0,19 mph)

Western black widow malunga ne-0,98 km/h (0,61 mph)

Umntu ohambayo malunga ne-5 km/h (3,1 mph)

kufanelekile ukwazi

Iinyaniso

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

Umqhekezi weentsomi

Intsomi: A black widow bite is usually deadly.

Inyaniso: 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

Kwiingcali zetyhefu

Igama lenzululwazi: Latrodectus hesperus
Iqela: Izigcawu
Usapho: Theridiidae2
Ucwangco: Araneae
Amazwekazi: uMntla Melika
Iintsana: Females produce egg sacs, and the young are born in the months from May to October.1
Ingozi ebantwini: 3 / 5: Kubi kakhulu3

Apho iinyaniso zivela khona

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