Table 1: Progeny numbers and egg hatch rate for crosses within and between D. americana (NN97.4-red) and D. novamexicana (1031.4).

Female parentNumber of progeny (±S.E)Egg hatch rate (±S.E.)
ConspecificHeterospecificConspecificHeterospecific

D. americana73.5 (±0.87)23.4 (±0.33)0.90 (±0.009)0.36 (±0.03)
D. novamexicana69.2 (±0.44)1.4 (±0.08)0.97 (±0.009)0.008 (±0.003)