Jewel spider Posted by hawk on August 29, 2012 Posted in: Wildlife. Tagged: Alberta, cat faced spider, Edmonton, jewel spider, orb spider, spider. Leave a Comment Jewel spider, originally uploaded by t6hawk. An older picture but still relevant as these spiders are appearing more this time of year. They are common in the Edmonton area and are harmless to humans. They are very useful and skilled at taking care of the mosquito problem though.