Bug FAQAriadna bicolor
Ariadna bicolor · Order: Araneae · Family: Segestriidae
Ariadna bicolor lives in North America. It builds tube-like nests and can use man-made structures for its home.
Source: Wikipedia
How to recognize it
The cephalothorax and legs are yellowish-brown and the abdomen is purplish-brown.
Source: Wikipedia
Size
Ariadna bicolor lives in a tube-shaped dwelling.
Source: Wikipedia
Where it lives
It can use man-made structures as a nest.
Source: Wikipedia
Where it comes from
It is found in North America.
Source: Wikipedia
Where it is found in the US
Recorded in 36 of 51 states and DC. Most records: Maryland, Ohio, Virginia, Texas, New Jersey, Tennessee, Connecticut, North Carolina.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in United States. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Ariadna_bicolor
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.