Baryscapus servadeii

Baryscapus servadeii (Domenichini)

(Also known as Eutetrastichus servadeii (Domenichini))

Systematic position: Insecta, Holometabola, Hymenoptera, Apocrita, Chalcidoidea, Eulophidae.

Geographical distribution: Mediterranean countries.

Morphology: Adults mostly shiny black, legs with some yellowish segments, and wings with only a single, anterior vein.

Life history: Baryscapus servadeii is an egg [parasitoid]](entry/Parasitoid) of several Lepidoptera. It reproduces mainly by thelytokous parthenogenesis, usually placing only a single egg into its host-egg. Its development is reduced at temperatures >28°C and it may undergo a 1-year diapause. This parasitoid can survive for several weeks on honeydew.

Economic importance: Along with Ooencyrtus pityocampae, B. servadeii is an important enemy of the pine pests, the processionary moths [Thaumetopoea wilkinsoni(pest/Thaumetopoea wilkinsoni) and of Thaumetopoea pityocampa. The relative abundance of these parasitoids can be determined by the number of meconia that remain in the eggs, as their meconia differ in structure. In warmer regions B. servadeii is often the dominant enemy.


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