Acta Entomologica Sinica ›› 1999, Vol. 42 ›› Issue (2): 166-171.
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Jiao Yi,Zhao Ping
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Abstract: Metaphycus ericeri Xu et Jiang is an important parasitic wasp of female white wax insect, Ericerus pela Chavannes. The parasitic wasp has 5 generations per year in Kunming and overwinters as 3rd, 4th, 5th instar larvae and pupae in host body. The thermal threshold and thermal sum for the development are 11.45℃and 552.93 daydegrees respectively. The mean generation times at 18℃, 21℃, 24℃, 27℃ and 30℃ are 66.87d,47.27d,35.56d,30.84d and 27.81d respectively. The adults sucked honey dew and the host body fluid for its complementary nutrition. The sex ratio is 1.75~2.88:1 (mean 2.25:1). The pre-oviposition period is 2~3 days. At 18℃,21℃,24℃,27℃ and 30℃, the number of eggs produced per female is 4.37,13.29,18.16,19.31 and 15.14,and percentage of eggs produced is 1856%,64.14%,83.49%,89.81% and 75.81%respectively. The female wasp doesn't oviposit at 15℃. The adult longevity is influenced by food, sex and oviposition. The larvae undergo 5 instars. The 1st~4th instar larvae live on the host body fluid and tissue. The 5th instar larvae stop feeding, excrete and pupate in the host body.
Jiao Yi, Zhao Ping. Bionomics of Metaphycus ericeri Xu et Jiang (Hymenoptera: Encyrtidae)[J].Acta Entomologica Sinica, 1999, 42(2): 166-171.
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