I’ve heard time and again that the common daddy longlegs is an acutely venomous insect yet lacks the appropriate mouthparts to inject this venom into humans. Is this true or just an urban legend?
It’s an urban legend. The critter you’re speaking of also goes by the name harvestman, and it’s harmless. By the way, the two most venomous spiders are the funnel web spider, found in Australia, and the brown recluse spider, found in the United States.