球链蚧属栎类群二新种记述(同翅目:蚧总科:球链蚧科)

DESCRIPTION OF TWO NEW SPECIES IN QUERCUS GROUP OF GENUS LECANODIASPIS(HOMOPTERA:COCCOIDEA:LECANODIASPIDIDAE)

本文描述1988年采自云南思茅壳斗科植物上的球链蚧属(Lecanodiaspis Targioni—Tozzetti,1869)二新种,即思茅球链蚧Lecanodiaspis simaoensis sp.nov.,栗球链蚧Lecanodiaspiscastanea sp.nov。模式标本均保存于山东农业大学昆虫学教研室昆虫标本室。

Two new species in the Quercus group of the genus Lecanodiaspis collected fromQuercus sp.and Castanea mollissima in Simao,Yunnan,China are described.All type spec-imens are kept in the Insect Collections of the Department of Plant Protection,ShandongAgriculture University.1.Lecanodiaspis simaoensis Sun et Shi sp.nov.(Plates 1,2)Two sizes of bent 8-shaped pores on the dorsal surface:larger pores in a marginal band extend to ventrum,but the smaller pores space throughout the remainder of derm.Sm-llier flat 8-shaped 3 or 4 pores form a narrow subarginal band Cribriform plates e r-ranged in 2 longitudinal rows.Each row distinctly divides into 2 to 3 groups,anteriorgroups usually with 1 to plates other groups with 6 to 10.Each antenna as 8 segments in-cluding the teinal one with fleshy sensory setae and 2 slender setae.Posterior spiraculasetae are similar to the shorter anterior spiracular setae.The new species is allied with L.foohowensis and L.costatus.Holotype ,paratype 4,coilected by Sun Jilin on April 24,1988.2.Lecanodiaspis castanea Sun et Zhang sp.nov.(Plates 3,4)Three sizes of bent 8-shaped pores are on the dorsal sace.The largest poes arrangein a marginal band,larger pores asually form in irregular chisters along middorsal line,sa-ler pores scatter on the remainder of derm.Smaller flat 8-shaped pores are in narrowsubmarginal band with 2 to pores in with on the ventral surface.Cribriform piates ar-range in longitudinal rows,per row composed of 3 plates.Each terminal segment ofantennae has 4 fleshy sensory setae and 3 slender setae.Inspiracular furrows present in 2sizes 5-locutar pores,the larger near body margin.the smaller near atrium.The new species is allied with L.tingunensis.Hologype ,collected by Sun Jil and Xue Ming on April 23,1988.