The red widow (Latrodectus bishopi) is a widow spider native to the scrub palmetto habitat of central and southern Florida. It is not established in Arizona and is not considered a resident species in the state. However, it is occasionally discussed in the context of Arizona spider identification because of its relationship to the western black widow and brown widow, which are common in Arizona. The red widow is distinctive — the cephalothorax and legs are bright reddish-orange, the abdomen is black with red or orange spots outlined in yellow, and the hourglass marking on the underside is incomplete or absent. It is a rare species even within its native Florida range and is considered a species of conservation concern. If encountered in Arizona, it would almost certainly be an accidental introduction via transported plants or goods from Florida.
👁Warning Signs
Not expected to be found in Arizona. Any sighting of a red-orange spider with a black abdomen should be reported and the spider should not be handled.
⚠Health & Property Risks
Venom is neurotoxic, similar to other widow species. Seek medical attention for any suspected widow bite.
Prevention Tips
Inspect plants and goods shipped from Florida. Not a practical concern for Arizona residents.
🛡Professional Treatment
Not an established pest in Arizona. Standard widow spider treatments apply if encountered.
Frequently Asked Questions — Red Widow
The Red Widow (Latrodectus bishopi) is reddish-orange cephalothorax and legs; black abdomen with red/orange spots and typically measures ~1/2 inch body. The red widow (Latrodectus bishopi) is a widow spider native to the scrub palmetto habitat of central and southern Florida. It is not established in Arizona and is not considered a resident species in.
The Red Widow poses a moderate risk. Venom is neurotoxic, similar to other widow species. Seek medical attention for any suspected widow bite.
In Arizona, red widows are most often encountered in the following situations: Not expected to be found in Arizona. Any sighting of a red-orange spider with a black abdomen should be reported and the spider should not be handled.
The Red Widow is most active during: Not applicable in Arizona. Arizona's warm desert climate can extend activity periods compared to other states, so year-round vigilance is recommended in the Phoenix metro and surrounding areas.
Inspect plants and goods shipped from Florida. Not a practical concern for Arizona residents.
Not an established pest in Arizona. Standard widow spider treatments apply if encountered.
If you spot a Red Widow indoors, avoid handling it directly. Capture it under a glass if possible for identification, or photograph it for reference. Contact Pest Control Bros for a professional inspection — we can confirm the species, assess the severity of the infestation, and recommend targeted treatment.
Dealing with Red Widow?
Pest Control Bros LLC serves Maricopa, Chandler, Casa Grande, Tempe, Gilbert, and Mesa. No contracts. Free inspections. Same-week service.
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