中国长珠蚧属一新种记述(同翅目:蚧总科:珠蚧科)  

A Description of a New Species of Genus Neogreenia MacGillivray from China (Homoptera: Coccoidea: Margarodidae)

作　　者：武三安[1] 程桂芳 

机构地区：[1]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083 [2]北京市东城区绿化队,北京100011

出　　处：《林业科学》2006年第4期62-64,共3页Scientia Silvae Sinicae

摘　　要：报道发现于北京国槐上的蚧虫一新种——槐树长珠蚧(NeogreeniasophoricaWu,sp.nov.),详细记述并描绘该种各虫龄的形态特征,编制长珠蚧属(NeogreeniaMacGillivray)世界种类的分种检索表。A new species, Neogreenia sophorica Wu, collected from Beijing inside bark tissue of Sophorajaponica is described and illustrated with its adult female, egg, 1^st and 2^nd instar nymph. The new species can be easily distinguished from other species in genus Neogreenia by claw with 2 minute denticles. A new combination is constructed for Kuwania osmanthus, transferring from genus Kuwania to genus Neogreenia. A key to the world species of genus Neogreenia is also given. All type specimens are deposited in the Insect Collections of Department of Forestry Protection, Beijing Forestry University. Adult female ： body elongate with marked segmentation, orang, yellowish in colour, 3.75 - 6.05 mm long and 1.70- 2.75 mm wide. Antennae ten-segmented. Mouthpart developed. Leg in 3 pair, at apex of tibia with a tuft of 5 - 8 digitules acute in form,tarsus bowed distinctly, claw with 2 denticles and 1 pair of acute digitules. Thoracic spiracles each with a group of multilocular pores at inner end of atrium; abdominal spiracles in 6 pairs, all smaller than the thoracic ones, with small amount of multilocular pores within its atrium. Derm bearing 2 types of disc pores： the one being multilocular pore, the other simple disc pore. First instar nymph： body elongate, yellowish in colour, about 0.76 mm long and 0.27 mm wide. Antennae seven-segmented. Mouthpart and legs much developed, claw with 1 denticle at its plantar surface. Abdominal spiracles only 1 pair. Abdominal sternite Ⅵ and Ⅶ each with a circulus. Second instar nymph（cyst） ： body oval, about 3.8 mm long and 2.0 mm wide. Antennae reduced. Legs entirely absent. Abdominal spiracles in 5pairs. Holotype： 1 adult female, Dongcheng District, Beijing; inside bark tissue of Sophorajaponica, May 3, 2004; Coll. Cheng Guifang. Paratypes： 10 adult females, 8 1^st instar nymphs and 7 2^nd instar nymphs, from April 24 to May 3, 2004; other data as holotype.

关 键 词：同翅目 珠蚧科 长珠蚧属 新种 槐树 中国 

分 类 号：S763.49[农业科学—森林保护学]