Ladybirds

My eight-year-old son is very interested in insects.He likes many kinds of insects;ants,butterflies,crickets,dragonflies and so on.I think he likes praying mantises the best because they are strong. Now finding ladybirds turns him on because he is taking part in a survey which is conducted by Shimane Prefectural Museum. When he find any ladybird, he notes the date,the place,the size and the pattern.He will send all of the data to the museum in September and he will get some special goods for help doing the survey.A few days ago he found twenty-five ladybirds.How many ladybirds will he be able to find at the end?