Na. 0633 kati ya 1 402

Brown widow

Latrodectus geometricus

Kuhusu jina: The name comes from the geometric pattern on the top of its abdomen (its rear body section).1

Inauma tuInauma, lakini haitakudhuru vibaya.

Buibui

Kuumwa

Hatari kwa watu: InaumaInaweza kuuma sana, lakini karibu kamwe si jambo zito.

The brown widow is a spider in the widow family, a close cousin of the black widow. It lives in many parts of the world, often around houses and buildings. Its bite is painful but usually not dangerous.1

Anaishi

Originally Africa; now found across the Americas, Asia, Australia, Papua New Guinea, Hawaii, Poland and the Middle East1

Afrika

Nyumbani

It builds untidy three-dimensional webs in dark corners, in vegetation and around buildings. It is commonly found around houses, and in tropical areas it is usually found around buildings. It also lives in crops such as avocado, citrus, cotton, maize, vineyards and pistachio.1

Urefu

3.5 cm (1.4 in)3

ukubwa wa kawaida wa mnyama mzima

Kasi ya juu

takriban km 0.92 kwa saa (maili 0.57 kwa saa)

Nchi kavu, makadirio

Picha ya Brown widow — Brown widow. Picha: Jesse Rorabaugh. CC BY 4.0, iNaturalist.

Jinsi ya kumtambua

Black and white geometric pattern on the top of the abdomen1
Usually a bright orange or yellowish hourglass marking on the underside of the abdomen1
Body colour ranges from tan and dark brown to black, with shades of grey also possible1
Stripes on the legs1
Egg sacs are spiky, like a sandspur, and sometimes described as tufted, fluffy or spiky1

Mara nyingi huchanganywa na: The black widow is slightly larger and darker, and has a red hourglass on the underside. The brown widow is lighter, has an orange or yellow hourglass, and has a black and white pattern on top of the abdomen that the black widow does not have. In southern Africa, the brown widow's relative L. rhodesiensis, native to Zimbabwe, is also called a brown button spider.1

Nguvu ya sumu

Kuumwa

Sumu hutoka kupitia meno yake ya sumu au meno anapouma.

Sumu yake hufanya nini?

Like all widow spiders, the brown widow has a neurotoxic venom, which attacks the nerves. It causes latrodectism, a set of very unpleasant symptoms. The effects are usually confined to the bite area and the tissue around it.1

Ana hatari gani kwa watu?

Hatari kwa watu: InaumaInaweza kuuma sana, lakini karibu kamwe si jambo zito.

Brown widow bites are usually not very dangerous, and are much less dangerous than black widow bites. The spider cannot deliver as much venom as a black widow, so its bites are considered minor. They are painful.1

Akiuma

Osha jeraha na uweke barafu kupunguza maumivu. Tafuta msaada wa kitabibu kama maumivu ni makali, yanasambaa au mtu anajisikia vibaya.

Daima piga namba ya dharura kwanza (112, 000, 911). Huu ni mwongozo wa jumla wa huduma ya kwanza, si ushauri wa kitabibu. Misingi ya huduma ya kwanza

Kaa salama

Kamwe usimguse, kumkamata wala kumchokoza mnyama wa porini, hata akiwa mdogo, na hata akionekana amelala au amekufa.
Mpe nafasi. Ukikutana naye, tulia, rudi nyuma polepole na umwache aende zake.
Akikuuma: tulia, usitikisike, piga namba yako ya dharura (112, 000, 911) au nenda hospitali haraka. Kumbuka alivyoonekana, picha husaidia.

Hakuwindi wewe. Hutumia sumu yake kukamata chakula au kujilinda, na hupendelea zaidi kujificha. Zaidi kuhusu kukaa salama

Wapi duniani?

Afrika Asia Ulaya Amerika Kaskazini Amerika Kusini Australia na Oceania

Ana ukubwa gani?

Ana urefu gani?

karibu urefu sawa na kibanio cha karatasi

Brown widow ana ukubwa gani ukilinganisha na WEWE?

Ni hesabu tu kwenye kivinjari chako. Hakuna kinachohifadhiwa wala kutumwa popote.

Ana kasi gani?

Kobe takriban km 0.3 kwa saa (0.19 mph)

Brown widow takriban km 0.92 kwa saa (0.57 mph)

Mtu anayetembea takriban km 5 kwa saa (3.1 mph)

inafaa kujua

Ukweli

In Southern California, researchers suggest the brown widow may be pushing black widows out of the area by competing and fighting for territory.1

Its egg sacs are so spiky that they are easy to tell apart from those of most other spiders.1

A female can make up to 20 egg sacs over her lifetime, with 120 to 150 eggs in each.1

Brown widows are preyed upon by wasps, including blue mud-dauber wasps and digger wasps.1

Kuvunja dhana potofu

Dhana potofu: The brown widow is as dangerous as the black widow.

Ukweli: Brown widow bites are usually not very dangerous and are much less dangerous than black widow bites.1

Kwa wataalamu wa sumu

Jina la kisayansi: Latrodectus geometricus
Kundi: Buibui
Familia: Theridiidae2
Mpangilio: Araneae
Mabara: Afrika
Watoto: Eggs hatch in about 20 days. Each female lays about 120 to 150 eggs per sac and can make up to 20 sacs in her lifetime.1
Hali yake porini: Least Concern (South African National Biodiversity Institute)1
Hatari kwa watu: 2 / 5: Inauma3

Ukweli unatoka wapi

Latrodectus geometricus (Wikipedia (CC BY-SA 4.0))
Latrodectus geometricus (iNaturalist): majina na uainishaji.
Venom Wiki: kiwango cha hatari, ukubwa wa kawaida na makadirio ya kasi ni yetu wenyewe. Ona jinsi tunavyovipata: Jinsi tunavyopima hatari.

Kila ukweli kwenye ukurasa huu una namba inayoonyesha chanzo chake. Kama tumekosea kitu, samahani, sisi ni wapenzi wa wanyama, si jarida la kisayansi. Tuambie kupitia [email protected] nasi tutarekebisha.

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