ቁ. 0631 ካብ 1 402

Western black widow

Latrodectus hesperus

ሓኪም የድልዮሳሕቲ እዩ ዝቐትል፣ ግን ንኽሳኡ ሓኪም የድልዮ።

ንኽሳታትዝበልዖ፦ ስጋ

ሓደጋ ንሰባት: ከቢድንኽሳኡ ሓኪም የድልዮ። ሞት ኣዝዩ ሳሕቲ እዩ።

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

ዝነብረሉ

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

ሰሜን ኣመሪካ

መበገሲ

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

ንውሓት

ካብ 1,4 cm ክሳብ 1,6 cm (ካብ 0,6 in ክሳብ 0,6 in)1

ዝለዓለ ቅልጣፈ

ኣስታት 0,98 ኪ.ሜ/ሰዓት (0,61 ማይል/ሰዓት)

ኣብ መሬት, ግምት

እንታይ ይበልዕ?

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

ስእሊ Western black widow — Western black widow። ስእሊ፦ Luke Padon። CC BY 4.0, iNaturalist.

ብኸመይ ትፈልጦ

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

ብዙሕ ግዜ ዝደናገረሉ፦ It was once described as a subspecies of Latrodectus mactans and is closely related to the northern species Latrodectus variolus.1

ሓይሊ መርዚ

ንኽሳታት

ክነኽስ ከሎ መርዚ ብኣስናን መርዙ ወይ ብኣስናኑ ይወጽእ።

መርዙ (ክነኽስ ወይ ክነድፍ ከሎ) እንታይ ይገብር?

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

ንሰባት ክንደይ ሓደገኛ እዩ?

ሓደጋ ንሰባት: ከቢድንኽሳኡ ሓኪም የድልዮ። ሞት ኣዝዩ ሳሕቲ እዩ።

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

ምስ ፈርሀ እንታይ ይገብር?

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

እንተ ነኺሱ

ነቲ ንኽሳ ሕጸቦ፣ ንቓንዛ ድማ ናይ በረድ ከረጺት ኣንብረሉ። ቃንዛ እንተ በርቲዑ፣ እንተ ተዘርጊሑ ወይ እቲ ሰብ ጥዕና እንተ ዘይተሰምዖ ሕክምናዊ ሓገዝ ርኸብ።

ኩሉ ግዜ ቀዳምነት ናብ ቁጽሪ ህጹጽ ረድኤት ደውል (112፣ 000፣ 911)። እዚ ሓፈሻዊ መምርሒ ቀዳማይ ረድኤት እዩ፣ ሕክምናዊ ምኽሪ ኣይኮነን። መሰረታት ቀዳማይ ረድኤት

ብድሕንነት ጽናሕ

ንዘገዳም እንስሳ ፈጺምካ ኣይትተንክፎ፣ ኣይትሓዞ ወይ ኣይተሕርቖ፣ ንእሽቶ እንተ ኾነ እውን፣ ደቂሱ ወይ ሞይቱ እንተ መሰለ እውን።
ቦታ ሃቦ። እንተ ረኺብካዮ፣ ህዱእ ኹን፣ ቀስ ኢልካ ንድሕሪት ተመለስ፣ ናብ መገዱ ድማ ይኺድ ሕደጎ።
ሓደ እንተ ነኺሱካ፦ ህዱእ ኹን፣ ከይተንቀሳቐስካ ጽናሕ፣ ናብ ቁጽሪ ህጹጽ ረድኤት (112፣ 000፣ 911) ደውል ወይ ብቕልጡፍ ናብ ሆስፒታል ኪድ። ከመይ ከም ዝመስል ዘክር፣ ስእሊ ይሕግዝ።

ንዓኻ ከጥቅዕ ኣይደልን እዩ። መርዙ ዝጥቀመሉ መግቢ ንምሓዝ ወይ ንርእሱ ንምክልኻል እዩ፣ ምሕባእ ድማ ኣዝዩ ይመርጽ። ብዛዕባ ድሕንነት ተወሳኺ

ኣበይ ኣብ ዓለም?

ኣፍሪቃ እስያ ኤውሮጳ ሰሜን ኣመሪካ ደቡብ ኣመሪካ ኣውስትራልያን ኦሽያንያን

ክንደይ ዓቢ እዩ?

ክንደይ ይነውሕ?

ካብ ንእሽቶ ኣጻብዕካ ዝሓጽር

Western black widow ምሳኻ ክወዳደር ከሎ ክንደይ ዓቢ እዩ?

ኣብ ብራውዘርካ ዝስራሕ ሕሳብ ጥራይ። ዋላ ሓደ ነገር ኣይዕቀብን ናብ ዝኾነ ቦታ ድማ ኣይለኣኽን።

ክንደይ ቅልጡፍ እዩ?

ጎብየ ኣስታት 0,3 ኪ.ሜ/ሰዓት (0,19 mph)

Western black widow ኣስታት 0,98 ኪ.ሜ/ሰዓት (0,61 mph)

ዝኸይድ ሰብ ኣስታት 5 ኪ.ሜ/ሰዓት (3,1 mph)

ክፍለጥ ዘለዎ

ሓቅታት

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

ጽውጽዋይ ዝሰብር

ጽውጽዋይ፦ A black widow bite is usually deadly.

ሓቂ፦ 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

ንክኢላታት መርዚ

ሳይንሳዊ ስም: Latrodectus hesperus
ጉጅለ: ሳሬታት
ስድራ ቤት: Theridiidae2
ቅደም ሰዓብ: Araneae
ክፍለ ዓለማት: ሰሜን ኣመሪካ
ህጻናት: Females produce egg sacs, and the young are born in the months from May to October.1
ሓደጋ ንሰባት: 3 / 5: ከቢድ3

ሓቅታት ካበይ ይመጹ

Latrodectus hesperus (Wikipedia (CC BY-SA 4.0))
Latrodectus hesperus (iNaturalist): ኣስማትን ምምዳብን።
Venom Wiki: ደረጃ ሓደጋ፣ ልሙድ ዓቐንን ግምት ቅልጣፈን ናትና እዮም። ብኸመይ ከም እነውጽኦም ርአ፦ ሓደጋ ብኸመይ ንግምግም.

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