The life cycles of Drosophila inca Dobzhansky & Pavan, 1943 and D. yangana Rafael & Vela, 2003 are described and proved to be very similar; the viability observed is different since the mortality in the larval and pupal stages of D. yangana is higher because of inadequate feeding. The mean duration from egg to adult is 22 days at 21-23° C for both species.
Life cycles; fitness; inca subgroup
