Found this information about the June Bug.
June Bug My Home: Found all over North America, I hide in trees during the day. As adult beetles, we swarm in great numbers in early summer, usually at dark and are strongly attracted to lights.
What I eat: As a larva, I live underground and eat the roots of grasses and other plants. As an adult, I feed at night and eat vegetation, usually the leaves from trees and bushes.
What I look like: I am less than one inch in length, am dark brown to blackish in color, have a hard casing and have wings.
How I am born: I go through four stages of development: egg, larva, pupa and adult. My
egg is laid in the ground, and I can live for two to three years in the ground as a larva before surfacing to become an adult. My total lifespan is up to four years.
Rhinoceros Beetles can fly strongly and are attracted to lights at night. They are generally noticed when they come to house lights or when they are seen lying beneath street lights and on the concrete tarmacs of petrol stations. In Brisbane they are only seen in the summer months, but in the tropical north they can be found at anytime of the year.