Put jelly in straws to make worms.
Caterpillar Pattern Boards
Make a spider web inside a hula hoop & hang from the ceiling.
The Bad-Tempered Ladybird by Eric Carle. Love this activity - so cute! The book is great for so many different activities - speech marks/bubbles, expression when reading, time, length/measurement, minibeasts/animals themes, etc. etc..
Minibeast ideas using paper plates
Incy Wincy spider- exploring pipes and spiders in the sand.
Minibeast themed Finger Gym - collect as many as you can in 1 minute.
Interactive Education: Ladybug Counting
Mommas Fun World: Insect sensory bin play