Black Widow vs Brown Widow Checker
Marking and color cues for widow spiders — educational comparison only.
Educational tool only — not medical, pest-control, or safety advice. When unsure, observe from a distance and photograph rather than handle.
Black widow
Typically glossy black with a red hourglass on the underside of the abdomen (appearance varies by species and sex).
- Often shiny black body
- Red hourglass usually on underside
- Irregular tangled web in sheltered spots
Brown widow
Variable tan to dark brown with a typically orange hourglass and more patterned abdomen; egg sacs often spiky.
- Brown to tan body with patterning
- Hourglass often orange/yellowish
- Spiky egg sacs are a useful clue when present
Educational markings only — never a medical verdict. Do not handle; photograph from a safe distance.
FAQ
- Should I handle a widow spider to identify it?
- No. Use photos from a safe distance. This checker is for learning markings, not for deciding risk or removal.
Related reads
More precise IDs are on the way
These tools teach the differences. BugScout IDs the insect from a photo on your iPhone.