Re: Can spiders see in the dark?

Actually, most spiders have poor eyesight even in daytime.  They depend on 
other senses, especially tactile (touch)or chemical receptors.  Of the 
nocturnal hunters only some wolf spiders (Lycosidae) and ogre-faced spiders 
(Deinopidae) have good eyesight that may function in the dark, probably 
under star or moon light. Most jumping spiders (Salticidae), which have the 
best eyes found in spiders, cannot locate prey at night at all.  The few 
that can apparently use tactile or chemical clues instead of eyesight.