An. Volkoff et J. Daumal, OVARIAN CYCLE IN IMMATURE AND ADULT STAGES OF TRICHOGRAMMA-CACOECIAE AND TRICHOGRAMMA-BRASSICAE (HYM, TRICHOGRAMMATIDAE), Entomophaga, 39(3-4), 1994, pp. 303-312
The ovarian cycle was studied in two species of Trichogramma, the thel
ytokous T. cacoeciae and the arrhenotokous T. brassicae. For both spec
ies, egg development was recorded (1) in the immature stages and (2) i
n adult females before and after one bout of oviposition. The two spec
ies differed in the numbers of immature eggs formed and stored in the
ovaries, and in the pattern of egg replenishment after oviposition.