I can't find the prick....I've been looking in the area the pokedex directs you in for an hour now, still none....

This is just as bad, if not worse, than my search for Chansey in pokemon gold....I found a shiny Nidorino before i found Chansey....

Any tips? Ratios/Percentages? I'm playing Ruby version, and I'm aware that finding a Volbeat is considerably harder than finding an Illumise....