While taking our dog to the basement for a bath last night, my wife encountered a stairwell full of her next-to-least favourite1 arthropod — cellar spiders (Pholcus phalangioides).
By the looks of that egg sac, our laundry room will be well protected for the foreseeable future, much to my wife’s chagrin!
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1- RenĂ©e’s least favourite arthropod being the house centipede of course.