The most dangerous insects and arachnids are usually not the most cinematic ones. If you measure danger by disease burden, exposure, and medical importance instead of pure shock value, mosquitoes, ticks, kissing bugs, tsetse flies, sand flies, and black flies rise fast, while famous scary bugs like killer bees, giant hornets, camel spiders, and deathstalker-type arachnids need more context than hype.