Red widow
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

Indlela yokusiqaphela
- 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
Sidla ngokubhidaniswa no: 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
Amandla etyhefu yokuluma nokuhlaba
Ityhefu iphuma ngamazinyo aso etyhefu okanye ngamazinyo aso xa siluma.
Ityhefu yaso yokuluma okanye yokuhlaba yenza ntoni?
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
Siyingozi kangakanani ebantwini?
Ingozi ebantwini: KubuhlunguKunokuba buhlungu ngokwenene, kodwa phantse akusoze kube kubi kakhulu.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
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
Sikhulu kangakanani?
Side kangakanani?
malunga nobude besiqhobosho sephephaU-Red widow mkhulu kangakanani xa uthelekisa NAWE?
Zizibalo nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwa naphi na.
Sikhawuleza kangakanani?
Iinyaniso
A bite was filmed and documented in 2023 by biologist Spencer Hoffman, one of the few recorded bites from this species.1
Females are almost double the size of males.1
Its predators are thought to include sphecid wasps and the Florida scrub jay.1
It lives in sand-pine scrub, a habitat found only in Florida and coastal Alabama.1
Umqhekezi weentsomi
Intsomi: All widow spiders have the hourglass marking on the underside.
Inyaniso: The red widow does not have the familiar hourglass marking. It usually has one or two small red marks instead.1
Apho iinyaniso zivela khona
- Latrodectus bishopi (Wikipedia (CC BY-SA 4.0))
- Latrodectus bishopi (iNaturalist): amagama nokuhlelwa.
- Venom Wiki: inqanaba lengozi, ubungakanani obuqhelekileyo noqikelelo lwesantya zezethu. Bona indlela esizifumana ngayo: Indlela esilinganisa ngayo ingozi.
Inyaniso nganye kweli phepha inenombolo ebonisa umthombo wayo. Ukuba senze impazamo, uxolo, sithanda izilwanyana, asiyomagazini yenzululwazi. Sixelele ku-[email protected] kwaye siza kuyilungisa.
Ukuluma