Table 1.

Immature survival and sex ratios from mating regime and U populations. We report the mean ± 1 s.e.

mating regime	replicate trays	proportion of emerged adults that were female	proportion of first instar larvae that became adults
U	8	0.47 ± 0.01	0.82 ± 0.01
HMC	5	0.40 ± 0.02a	0.71 ± 0.09
NMC	5	0.45 ± 0.02	0.65 ± 0.07

^aSignificant difference between the observed female : male ratio and that expected with a 1 : 1 female : male ratio.