larval pupation site preference in drosophila melanogaster, d. simulans, d. mauritiana and their hybrids

Pupation site preference in Drosophila melanogaster, D. simulans, D. mauritiana and their hybrids were studied. The larvae of D. melanogaster prefer glass while its sibling species D. simulans and D. mauritiana prefers media to pupate. Progenies of direct and reciprocal cross of D. melanogaster and D. simulans preferred media for pupation. The hybrids of cross between D. melanogaster female and D. mauritiana male prefers glass for pupation. Their percentage of pupation is intermediate than the parents. Whereas, the hybrids of D. simulans female and D. mauritiana male prefer media for pupation and percentage of PSP are more than the parents.