Kfir, R., & Luck, R.F. 1979 Effects of constant and variable temperature extremes on sex ratio and progeny production by Aphytis melinus and A. lingnanensis (Hymenoptera: Aphelinidae).. Ecological Entomology 4: 335-344.

Notes: Experiments were performed on two biological control agents of Aonidiella aurantii. Exposure to temperature extremes may be a factor explaining the ability of A. melinus to exclude A. lingnanensis from the climatically more extreme areas of southern California.