Effect of food stress on flight muscle and reproduction development in a wing dimorphic cricket, Velarifictorus ornatus Biology of Ormyrus coccotori(Hymenoptera:Ormyridae) and Parasitism Relationship between the Parasitoid and Its Host Effects of environmental factors on wing differentiation in Velarifictorus aspersus Walker Structure of Bordered Pit Membrane of Cunninghamia lanceolata Tracheid Organogenesis of Staminate Flowers in the Genus Schisandra and Its Systematic Significance Effect of Different Positions of Bordered Pit Torus in Yezo Spruce on Its Permeability