Macracantha arcuata, aka the horned orb-weaver spider or the wishbone spider, have a pair of intimidating long horns growing out of their abdomen.
Although both male and female Macracantha arcuate spiders feature spines on their abdomens, it’s the females that stand out. They have three pairs of spines coming out of their abdomens, but it’s the middle one that immediately catches your attention, as the spectacular horns that project upward and then curve toward each other are roughly three times longer than the spider itself. The other two pairs of spines are short and relatively inconspicuous in comparison. If you’re afraid of spiders in general, a female Macracantha arcuata is a terrifying sight to behold, but you should know that the species is actually harmless to humans.
