Tetrastichus giffardianus (parasitoid)

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Tetrastichus giffardianus - female (click on image to enlarge it)
Authors: Beatriz Jordão Paranhos, Dori Edson Nava and Aldo Malavasi
Source: Pesquisa Agropecuária Brasileira (2019), vol. 54, art. e26037

Tetrastichus giffardianus (parasitoid) Silvestri, 1915

This wasp is native to Africa and has been introduced into various other regions as part of classical biological control programs against fruit flies. For example it was introduced between the 1910s and 1930s into Hawaii and South America (e.g. see Bartlett et al., 1978). The Mediterranean fruit fly (Ceratitis capitata) is the most common host, but other species like the oriental fruit fly (Bactrocera dorsalis) are also parasitised.

T. giffardianus is an important parasitoids of the medfly. Mainly mature larvae are parasitised and on average 8-9 eggs are deposited per larva. The time between oviposition and emergence of the adult wasps takes only around 3 weeks.