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Red widow

Latrodectus bishopi
Davart il num: The name bishopi honours Marshall B. Bishop, who collected the specimens used to describe the spider.1
Fa mo malQuai fa mal, ma i na ta fa nagin donn serius.
Filiens MorsasMangia: Charn
Privel per umans: DolurusQuai po far propi mal, ma i n'è bunamain mai grav.

The red widow is a venomous spider that lives only in Florida, in the dry, sandy scrub where sand pine trees grow. It is a close relative of the black widow, but it rarely comes into contact with people, so it is not often met. Its bright red colours make it easy to recognise.1

Viva en
Central and southern Florida, USA1
America dal Nord
Pagina iniziala
It lives mainly in sand-pine scrub, which is inland areas of dry sand dunes covered in sand pine trees. It builds most of its webs in palmetto bushes, at least 30 cm above the ground. It seldom comes into contact with humans.1
Lunghezza
4 cm (1,6 in)3
grondezza tipica d'in animal creschì
Sveltezza maximala
circa 0,98 km/h (0,61 mph)
Sin terra, stima approximativa
Tge mangia el?
It is a predator of the insect Hemisphaerota cyanea. It catches prey in its tangled webs, then retreats to a funnel-shaped hideaway below.1
Propi!Foto da Red widow
Red widow. Foto: Stevenklioze00. CC BY-SA 4.0, Wikimedia Commons.

Co renconuscher el

  • The cephalothorax (the front part of the body) is red-orange.1
  • The abdomen is black, with yellow rings outlining rows of red spots.1
  • The legs are vermilion red.1
  • The underside does not have the familiar hourglass marking. It usually has one or two small red marks instead.1
  • Females are almost double the size of males.1

Savens confundì cun: It is closely related to the black widow (Latrodectus mactans). The two can be told apart by features of the male and female genitalia, which are examined under magnification. The red widow's male embolus has one fewer loop, and the female's connecting ducts to the spermatheca also have one fewer loop.1

Forza dal tissi

Morsas

Il tissi vegn or tras ses dents da tissi u ses dents, cura ch'el morda.

Tge fa ses tissi?

The red widow is venomous like other members of the genus Latrodectus. In a documented bite, the main effect was a mildly painful throbbing sensation that lasted several hours. The median lethal dose (LD50) of its venom in mice is 2.20 mg/kg, and each spider contains about 0.157 mg of venom.1

Quant privlus è el per umans?

Privel per umans: DolurusQuai po far propi mal, ma i n'è bunamain mai grav.

No bites from this spider are recorded in the medical literature. It seldom comes into contact with humans, unlike the black and brown widows, which live close to people. One documented bite caused a mildly painful throbbing that lasted several hours.1

Sch'el morda

  • Lava la morsa e metta in pachet da glatsch sin ella cunter las dolurs. Tschertga agid medicinal, sche las dolurs èn fermas, sa derasan u sche la persuna na sa senta betg bain.

Clama adina l'emprim tes numer d'urgenza (112, 000, 911). Quai è in cussegl general d'emprim agid, betg in cussegl medicinal. Basa da l'emprim agid

Resta en segirezza

  • Na tutga, na piglia e na tizza mai in animal selvadi, gnanc in pitschen, ed era sch'el para da durmir u d'esser mort.
  • Dà spazi a l'animal. Sche ti scuntras in, resta calm, va plaun enavos e lascha ir el per sia via.
  • Sch'in tal animal ta morda: resta calm, na ta mova betg, clama tes numer d'urgenza (112, 000, 911) u va spert en in ospital. Ta regorda co ch'el veseva or, ina foto gida.

El n'ha betg quai sin tai. El dovra ses tissi per pigliar nutriment u per sa defender, e sa zuppa bler pli gugent. Dapli davart la segirezza

Quant grond è el?

Quant lung è el?

Red widow circa 4 cm lung (1,6 in)In clip da palpiri circa 3 cm (1,2 in)In smartphone circa 15 cm (5,9 in)
var uschè lung sco in clip da palpiri

Quant grond è Red widow cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn memorisà u tramess.

Quant svelt è el?

bun da savair

Fatgs

1

A bite was filmed and documented in 2023 by biologist Spencer Hoffman, one of the few recorded bites from this species.1

2

Females are almost double the size of males.1

3

Its predators are thought to include sphecid wasps and the Florida scrub jay.1

4

It lives in sand-pine scrub, a habitat found only in Florida and coastal Alabama.1

Destructur da mits

Mit: All widow spiders have the hourglass marking on the underside.

Vardad: The red widow does not have the familiar hourglass marking. It usually has one or two small red marks instead.1

Per experts da tissi

Num scientific
Latrodectus bishopi
Gruppa
Filiens
Famiglia
Theridiidae2
Urden
Araneae
Continents
America dal Nord
Poppins
The spider stores its egg sacs in its funnel-shaped retreat.1
Co ch'i va ad el en la natira
Threatened (in the United States)1
Privel per umans
2 / 5: Dolurus3

Da nua che vegnan ils fatgs

  1. Latrodectus bishopi (Wikipedia (CC BY-SA 4.0))
  2. Latrodectus bishopi (iNaturalist): nums e classificaziun.
  3. Venom Wiki: il stgalim da privel, la grondezza tipica e la stima da la sveltezza èn noss agens. Guarda co che nus als calculain: Co che nus valitain il privel.

Mintga fatg sin questa pagina ha in numer che renvia a sia funtauna. Sche nus avain fatg in sbagl, perstgisa, nus essan fans d'animals, betg ina revista scientifica. Scriva a nus a [email protected] e nus curregin.

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