Fig. 7. Proportional reduction of internal lipid reserves in nondiapausing and diapausing females of Culex pipiens. ND25, mosquitoes reared under a nondiapausing photoperiod (15 h:9 h, L:D) at 25°C; ND18, mosquitoes reared under a nondiapausing photoperiod at 18°C; D18, mosquitoes reared under a diapausing photoperiod (9 h:15 h, L:D) at 18°C. Values are means ± s.e.m. of 10 replicates of five mosquitoes each.