 Being often quite sizeable and swarming in numbers at certain times, for example the "Amphimallon", "Phyllophaga" and "Polyphylla" "june beetles" or the "Melolontha" cockchafers – all from tribe Melolonthini – feature widely in folklore.Some Melolonthinae are economically significant pests.Other than the Melolonthini, the most diverse tribes are the Ablaberini, Liparetrini, Macrodactylini, Pachydemini and Sericini.