Comments & ID Thoughts
My guess is this is Dolomedes tenebrosus (dark fishing spider), 2.5" leg span so presumably a female? Most spiders don't find enough to eat in my basement so surprised to find this large healthy specimen in March.
- Submitted by:
- Submitted: Mar 15, 2019
- Photographed: Mar 13, 2019
- Spider: Dolomedes tenebrosus (Dark Fishing Spider)
- Location: Bath, Ontario, Canada
- Spotted Indoors: Basement or Cellar
- Found in web?: No
- Attributes: Lateral
Yes, it is a female. The other large Dolomedes in your area is D. scriptus. Both are a bit variable in how brightly patterned they are and how dark overall. If you can get a look at one from front on, D. tenebrosus has a small vertical white mark between and above the jaws (like a little white moustache) and D. scriptus does not have the white mark in the centre.
Thanks for you input, I have posted another photo which I think shows the white marking on the face.