Cocoon mass and volume can be predictors of sex. The probability that a cocoon will emerge as a female is given as A a function of pupal volume (p < 0.0001, Chi Square = 16.5), and B a function of cocoon mass (p < 0.0001, Chi Square = 19.6)

  Part of: Arvidson R, Landa V, Frankenberg S, Adams ME (2018) Life History of the Emerald Jewel Wasp Ampulex compressa. Journal of Hymenoptera Research 63: 1-13.