Rhyacophilidae Life history strategies Holometabola or complete metamorphosis - life cycle includes egg, larvae, pupae, and adult forms or stages. Diptera Trichoptera Coleoptera Heterometabola or incomplete metamorphosis - life cycle includes egg, larvae, and adult forms or stages. There is no pupal phase. Ephemeroptera Plecoptera Odonata Ametabola or no metamorphosis - life cycle includes egg, immature adults, and adult forms or stages. These species have multiple generations within a single year.
Life cycles take more than a year to complete.