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Fig. 1. Net water loss rates in females of Culex pipiens reared under
diapausing (D18) and nondiapausing conditions (ND25; ND18) at 0.00
av. The slope of the regression through the points
represents the water loss in % h-1. Mt is the
mass at any time t and M0 is the initial water
mass. Values are means ± s.e.m. of 60 mosquitoes. 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.