The Ditrysia, which comprise 98% of the Lepidoptera, have two separate openings for reproduction in the females (as well as a third opening for excretion), one for mating, and one for laying eggs.
Os Ditrysia, que comprenden o 98% dos Lepidoptera, teñen dúas aberturas distintas para a reprodución nas femias (e ademais un terceiro orificio para a excreción), un deles usado para aparearse, e o outro para poñer ovos.