Tetraqnatha shikokiana.has one generation a year in southeast littoral of Shandong Province.Overwinter takes place as larva in the woods or weeds,emergence in middle April of the next year and development to mature and mating occurs in early July.Oviposition occurs and hatching in late August;winter takes place in early November.Its overage incubation period is 7.6 days,larva period is 316.25 days,and adult period is 78.88 days.It is an important natural enemy of various insect pests.Closing hillsides and p...