1993 Volume 39 Pages 127-130
Oviposition behaviour of two parasitoids, Torymus (Syntomaspis) sinensis and T. (S.) beneficus, was investigated on twigs with galls formed by the chestnut gall wasp, Drvocosmus kuriphilus. Oviposition behaviour of both parasitoids was composed of walking and flight, rest and preening, searching, host-feeding, and stinging. The sting behavior was separated into long and short time stings. The long time stings may correspond to paralysing the host larva, oviposition and construction of a feeding-tube. Frequency of long time stings of T. (S.) sinesis and T. (S.) beneficus are 4. 5 and 2. 3 per hour respectively.
