Offspring number depends on number of pollinator wasps per syconium. Wasps usually oviposit into a nearby syconium. Flowers form within a receptacle, a syconium. The female then oviposits into a new syconium. Female wasps oviposit into the syconium for hatching. Upon sensing these signals from a specific syconium, the wasp will approach that fig. Female and male flowers in each syconium mature at different times. Female wasps squeeze their way through the ostiole into the interior of the syconium. Fruit is a syconium and trees may be either female or hermaphrodite. This rush creates a large number of wasps all competing to enter an adjacent syconium. When an adult wasp is mature, it mates with another wasp within the syconium. In due course, staminate flowers develop inside the syconium. When wasps emerge from the syconium, they rush to the nearest syconia. When a "B. psenes" wasp oviposits her egg inside the syconium, nematodes are also deposited. The mother produces this hyperplastic tissue when she lays the eggs in the syconium.