Furthermore, Adelgidae species in China includes 20 known species in 6 genera and mainly on Palaearctic Regions.
中国球蚜科有6属20种，分布在黑龙江、云南、四川等地，主要是古北区成分。
The distribution of Adelgidae is coincident with their host plants, mainly in temperate zone and sub-tropical mountainous areas of the Northern Hemisphere.
球蚜的分布与寄主植物的分布相一致，主要是北半球温带和亚热带高山。
Adelgidae has multifarious life history that consist of heteroecious holocyclic, heteroecious anholocyclic and monoecious anholocyclic. Its primary injured symptom is to form galls.
球蚜具有包括异寄主全周期、异寄主不全周期、同寄主不全周期等复杂的生活周期，形成虫瘿是其主要的为害特征；
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