Goliath beetles can grow to over 4 inches, and are from the forests in Africa. The easiest way to identify the gender of the beetle is to look at their heads. Males have Y-shaped horns used for fighting when they compete for mates, while females lack a horn, and have a head shaped like a wedge for digging holes to lay eggs. ifuckinglovescience
Golden tortoise beetles (Charidotella sexpunctata) are common North American beetles that can be found on morning glory leaves, which are their preferred food. They can change color, looking initially like tiny jewels, or golden ladybugs, but can alter the reflectivity of the cuticle so the outer layers become clear, revealing a ladybug type of red coloring with black spots. This color change is accomplished by microscopic valves controlling the moisture levels under the shell.
The Domino Beetle (Anthia sexguttata) that sports six white dots on its black exoskeleton. They may look like a barrel of fun, but these bugs are far from it! Adults have the ability to squirt an irritating acidic liquid when its feeling defensive. If you were to get caught in the sizzling stream, you'd feel a gradual burning pain start to build on the part of the body that got sprayed. Numbness in the limb attached to the affected area can sometimes occur as well. Hooray!