TABLE 1.
Egg hatch rates and offspring sex ratios for four wild-caught female A. decempunctata beetles
| Female | Origin | Egg hatch ratea | Sex ratiob |
|---|---|---|---|
| DBI19 | Bielefeld | 86/289 (0.298) | 3/59 (0.051) |
| DBI43 | Bielefeld | 163/342 (0.477) | 0/81 (0) |
| DBE15 | Berlin | 117/278 (0.421) | 0/69 (0) |
| DBE37 | Berlin | 73/211 (0.356) | 0/50 (0) |
a
Number of eggs hatched/ total number of eggs laid. The numbers in parentheses are the proportions of eggs hatched. The hatch rates shown are all significantly less than 60% (5% level, binomial distribution).
b
Number of male offspring/ total number of offspring reared. The numbers in parentheses are the proportions of male offspring. The sex ratios obtained are significantly different from 0.5 (5% level according to a χ2 test)