Ba M'hamed, T., & Chemseddine, M. 2001 Assessment of temperature effects on the development and fecundity of Pullus mediterraneus (Col., Coccinellidae) and consumption of Saissetia oleae eggs (Hom., Coccoidae).. Journal of Applied Entomology 125(9-10): 527-531.

Notes: Eggs, larval and nymphal periods and fecundity of P. mediterraneus [? Scymnus mediterraneus] were examined under 16 h light:8 h dark combined with six constant temperatures: 15, 20, 25, 30, 35 and 40°C. Eggs of S. oleae were used as prey. The developmental time at 15, 20, 25, 30 and 35°C was 17.23, 4.5, 2.64, 1.67, 1.28 days for eggs and 98.47, 68.88, 53.94, 28.96, 36.51 days for larval-pupal duration, respectively. At 7°C no eggs hatched, and at 40°C all the stages died after 36 h of maximum exposure except the three last stages. The fecundity of females rearing at different temperatures ranged between 1.7 eggs at 15°C and 601.86 eggs at 30°C. The pre-oviposition period ranged between 23.75 days at 15°C and 3.47 days at 35°C. The consumption of S. oleae eggs by the larvae reached 597.69 eggs during the pre-imaginal development. Females attacked more eggs than males averaging 77.69±22.34 eggs per 4-day period compared with 46.97±10.12 eggs per 4-day period for males.