Since Agasicles hygrophila selman et Vogt was brought into Minhang district of Shanghai city and distributed over a field in October 1996, it has successfully settled down in the suburb of Shanghai and established a stable population through several year natural breeding and hibernation.

Toxicities of Insecticides Against Gallerucida bifasciata Motschulsky Indoor;

Gallerucida ornatipennis Duvivier and Gallerucida bifasciata Motschulsky are the pest species on Polygorum multiflorum Thunb.

Spatial distribution patterns of the leaf beetle, Ophraella communa, in the recipient area of China;

Mating and oviposition behaviors of exotic leafbeetle, Ophraella communa;

With an improving ability to manipulate physical materials, man grew out of the satisfaction with the beauty of functional ceramic wares in shape alone, and began to put some decorations on their surface and leaf patterns were among them.

The definitions of the ruled surfaces and cyclic surfaces are generalized, and then thedefinition of the curved surfaces is given in this paper.