Egg parasitoids of the genus Trichogramma (Hymenoptera: Trichogrammatidae) are used as an augmentative biological control tactic in millions of hectares of crops worldwide, where they are released for combating lepidopteran pests (van Lenteren and Bueno 2003, BioControl 48: 123–129). For this tactic to be effective, it is essential to use factitious hosts, such as Sitotroga cerealella (Oliver) (Lepidoptera: Gelechiidae) or Anagasta kuehniellla (Zeller) (Lepidoptera: Pyralidae), to reduce rearing costs and improve profitability of Trichogramma commercialization (Bernardi et al. 2000, Rev. Bras. Biol. 60: 45–52). Biological fitness of egg parasitoids is influenced by the host because the host egg is the only source of nutrients for the development of the parasitoid (Lampson et al. 1996, Environ. Entomol. 25: 283–294; Dias-Pini et al. 2014, J. Appl. Entomol. 138: 677–682). Host quality could affect adult parasitoid size, longevity, and parasitic capacity (Marston and Ertle 1973, Ann. Entomol. Soc. Am. 66: 1155–1162; Corrigan and...

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