Behavioural Interactions between the Social Parasite Sulcopolistes atrimandibularis and its Host Polistes biglumis (Hymenoptera: Vespidae)
[Verhaltensbeziehungen zwischen dem Sozialschmarotzer Sulcopolistes atrimandibularis und seinem Wirt Polistes biglumis (Hymenoptera : Vespidae)]
The parasitic wasp species S atrimandibularis (Zimmermann 1930) invades nests of P biglumis (Linnaeus 1758) by means of a defensive strategy. Successful parasites succeed in taking prey or parts of it from the host FF, chew it, and return it to the host. The Polistes F stops laying eggs 1 - 3 days later while the parasite starts to release eggs within 3 - 5 days, after having returned chewed prey to the host queen. It is assumed that S atrimandibularis releases a substance into the prey that inhibits the reproductive capacity of P biglumis.