Drosophila antonietae fly 16 Cactaceae 14 Drosophila gouveai 14 Diptera 12 Drosophila buzzatii 12 Drosophilidae 12 host plant 12 divergence 10 Cactus 8 Drosophila repleta 8 cactus 8 hybridization 8 phenotypic plasticity 8 repleta group 8 wing morphology 8 Drosophila koepferae 6 Phenotypic plasticity 6 Pilosocereus 6 speciation (biology) 6 Animals 4 Cactophilic Drosophila 4 Cereus (angiosperm) 4 Cereus hildmannianus 4 Drosophila 4 Drosophila borborema 4 Female 4 Geometric morphometrics 4 Male 4 Morphological evolution 4