Eric Carle has written and illustrated "very" many books that feature bugs:
The Very Hungry Caterpillar
The Very Quiet Cricket
The Very Lonely Firefly
The Very Clumsy Click Beetle
The Very Busy Spider
(plus one not so "very" book: The Grouchy Lady Bug).
There are very many activities you and you child can do with these books. Make a very fine picture collage of one of the bugs using very colorful cut up magazine pages. Check how very clumsy you are (or aren't) by walking along a line taped to the floor or by balancing on one leg. On a very warm summer's evening, catch very many fireflies in a jar and release them very soon. Make a very large fruit salad using the very yummy fruits described in The Very Hungry Caterpillar. Guess the temperature outside by counting chirps from very loud crickets. Count the number of cricket chirps heard within 15 seconds and add 40. Compare your cricket temperature to the actual one to see how very close they are.
Have a very good time reading!!