Table 1.

Mean development time of the early, control and late populations

Light regime	Population	Sex	Mean ± SEM
LD	early	M	251.58 ± 0.65
		F	244.28 ± 0.65
	control	M	253.98 ± 0.49
		F	247.32 ± 0.76
	late	M	254.62 ± 0.64
		F	249.73 ± 0.91
DD	early	M	262.16 ± 0.83
		F	257.29 ± 1.13
	control	M	2.62.59 ± 1.15
		F	258.61 ± 1.22
	late	M	265.96 ± 0.98
		F	261.29 ± 0.95

Mean (± SEM) development time of males (M) and females (F) from the selected and control populations under light/dark (LD) and constant dark (DD) conditions. Pre-adult development time of a fly (in hours) was calculated as the time interval between the midpoint of egg collection window and the midpoint of the 2 hr period during which the fly emerged as adult.