Comparative Analysis Of Entomophilous Flower And Visiting Insects In Xining Xishan Of Qinghai Province

Statistics of the type and quantity of Qinghai Xining Xishan visiting insects and insect pollinated plants,floral characteristics of entomophilous plants and the main characteristics of flower visiting insects were analyzed,in May to October 2015 and May to October 2016.The survey were recorded in Xining Xishan important pollinators can be divided into 4 orders,25 families and 88 species.Which including 9 families and 36 species of Lepidoptera,Papilionidae were the main pollinators,5 families and 25 species of Diptera,Syrphidae is the main pollinators,6 families and 15 species of Hymenoptera Apidae and Bombidae were the main pollinators,Coleoptera 5 families 12 species.The survey recorded a total of 31 families,93 genera and 153 species of Xishan entomophilous,The main groups is Compositae,Leguminosae,Ranunculaceae,Labiatae Cruciferae and Rosaceae of Xishan entomophilous plants.Through the analysis and the corresponding characteristics of the pollinators of entomophilous plants flower records,The main pollinators for Compositae is Diptera,Apidae and Bombidae of Hymenoptera,Lepidoptera,Meloidae and Coccinellidae of Coleoptera.The main pollinators for Leguminosae is Syrphidae of Diptera,Apidae and Bombidae of Hymenoptera and Butterflies of Lepidoptera.The main pollinators for Ranunculaceae is Diptera and Apidae of Hymenoptera.The main pollinators for Labiatae is Diptera and Butterflies of Lepidoptera.The main pollinators for Cruciferous is Hymenoptera and Diptera.The main pollinators for Rosaceae is Diptera,Hymenoptera and Butterflies of Lepidoptera.Important pollinators of plants adapted to insect analysis showed that Diptera insects prefer umbel and cymes;Hymenoptera prefer to visit large,brightly colored flowers;Lepidoptera like to visit larger flowers and flower with bright solitary flower,raceme and flower heads.Coleoptera insects visit yellow flowers of Asteraceae.Dynamic analysis of flower insect community visit Xishan,diversity analysis and similarity coefficient analysis showed the flowering time and plant insect consistency.These adaptations of visiting insects,inflorescence,corolla and colour of entomophile,make pollinators' body structure changed in the long process of evolution.Different mouthparts of insects,beak length corresponding to different flower visitors.Many pollinators in the chest,abdomen and appendages with hairs,these physical characteristics are conducive to the process of insect visitation to carry pollen,effectively improve the efficiency of insect pollination.In addition,the corbiculate leg of bees is one of the specific evolution for visiting insects.