DIY 3D Beetle Insects with Long Horn Metal Model Puzzles KitsThe beetles are sexually dimorphic because female beetles do not have as longhorns as males, but their bodies are taller and shorter than males. These horns are usually about a third of the body length of the male but can grow longer than the insects body, reaching lengths of 1. 5 7 in (4 17 cm). They are herbivores, which eat fruit, and the larvae eat rotting wood. Hercules beetles are not dangerous to humans, pets, or crops. They make great pets for