On Insect Faunal Characters And Diversity In KongTong Mountains

Kongtong mountain natural protecting area,rich in many kinds of plants and animals,hasn't been destroyed by busman beings,and still is a pure natural ecosystem.To provide the basic scientific data for researching and resource using,to improve these mountain tourism and scientific protection,We have researched and analyzed the forms of insect communities and their diversity.1 Insect communities and species in Kongtong MountainsIn Kongtong mountain there are 909 species insects,belonging to 16 orders,107 families,and 466 genera.Among them there are 79 species newly recorded in Guansu Province,172 speciers in PingLiang.Lepidoptera,Coleoptera are two majorities and they are 45.79%in their families,75.54%in their generas,79.54%in their species.Lepidotera's Noctuidae and Coleoptera's scarabaeoidea are two main families.There are natural enemy insects,belonging to 9 orders,32 families,70generas, totally 106 species in Kongtong Mountains.The pests and natural enemy insects' proportion is 4.7:1.The natural enemy insects species are 17.60%in the whole insects species.Because of other beneficial birds and animals influence,natural adjusting mechanisam is formed and these have made pests population under the permission level.Besides,there are economical,medical,edible,pollination,ornamental insects in the mountains. 2 Insect faunaInsect fauna is effected by the mountain environment clearly.There are 909 species insects.Among them Palaearctic Region species 575 species,and about 83.28%.in collecting,Oriental Region 79 species and about 8.69%.Oriental Region-Palaearctic Region 12species,and about 1.32%.Wide species 56 species,and about 6.16%,5 species,about 0.55%.Kongtong mountain's fauna is made up with preceding species,Among them,Palaearctic Region and Oriental Region are majorities.Lepidoptera,finest fauna,is made up with 9.75%.Oriental Region, 82.57%,Palaearctic Region species 2.28%both of preceding two Kinds 5.39%.Wide species Coleopteran is made up with 3.72%Oriental Region,94.21%Palaearctic Region,2.28%both of preceding two kinds,2.08%Wide species.These two faunas are all made up with typical Palaearctic Region border.3 Insects species diversity indexInsects species diversity index is changeable all the time.Lepidoptera index is in first position,d=58.76.Coleoptera index is the second position.The smaller species and amounts plecoptera,ephemerida,blattaria,mecoptera,mantodea,dermaptera, their indexes are zero,d=0.diversity index is 58.76%,changeable.Hymenoptera index is closed to that of Diptera.These mountains insects species diversity index is direct proportion to superior degree.4 Vertical dispersing characters of Insect communities.The mountains butterflies,with vertical dispersing characters,are suitable to the plants.Papilio bianor Cramer distributes the mountains tops(about 1900,2100m over sea level).The mountains(about 1700,1900m over sea level)are the main planes for pieridae,nymphalidae,satyridae,and so on lycaenidae distributes in the mountains (about 1955,1700m over sea level)5 Insects level distributionAccording to 7 main Insect researching results,insect number and species are great different.The dispersing is clearly connected with slop direction.The species on the slope against the sun is 2.01 times than on the one to the sun.The amounts on the slope against the sun is 3.15 times than on the one to the sun.6 Season changeThe population emergence peak of most insect is between July and August.Among them Scarabaeoidea is once peak in September every year.