A Taxonomic Study On Monophlebidae(Hemiptera:Coccomorpha) From China

The family Monophlebidae belonging to Hemiptera,Coccomorpha,Palaeococcomorpha.Currently,there are approximately 47 genera and about 262 species in the word,of which 5 genera and 25 species are known from China.In this family,the classification basis is weak and some of which infect the agriculture and forestry plants.Therefore,the taxonomy study to Chinese Monophlebidae is indispensable.This thesis begins with an overview of the historical and current studies on Monophlebidae and introduces the materials and methods.5 genera and 25 species of Monophlebidae in China were recorded,including:1 new record genus to China,Pseudaspidoproctus Morrison;1 new species,Drosicha cinnamomum sp.n.;3 new record species to China:Pseudaspidoproctus hyphaeniacus(Hall,1925),Drosicha koreiensis(Jashenko,1994),Drosicha burmeisteri(Westwood,1845).10 species of Monophlebidae were described and 14 figures were attached,which included 4 male adults,8 female adults,2 nyphm.Keys to genera and species of Monophlebidae in China were given.In addition,discuss the taxonomic relationship between the two genera Drosichoides Morrison and Buchnericoccus Reyne.All specimens studied are deposited in the Insect Collection,Beijing Forestry University,China(BFUC).