>> Jul 21, 2012
These beetles have other common names such as Hercules beetles, unicorn beetles or horn beetles. They are among the biggest of beetles, reaching more than 150 mm (5.9 in) in length, but are absolutely safe to humans because they cannot bite or sting.
Their common names refer to the characteristic horns borne only by the males of most species in the group. Each has a horn on the thorax and another horn pointing forward from the center thorax. The horns are used in fighting other males during mating season, and for digging (source:Wikipedia).
I saw this one at our porch a few days ago. My husband took some pictures for me. I’ve just known later that the beetle is harmless.