The research progress of pine wood nematode in aspects of disease - resistant mechanism , pattern of activities and proliferation of the nematode in tree ( trunk ) , the relationship between nematode and longicorn , biological control and application of the new technologies in the research fields were discussed 在松树的抗（感）病机理、线虫在树体内的活动与增殖规律、线虫与天牛的关系、生物防治以及新技术在研究中的应用等方面取得较大进展。
2.
Community ' s a diversity is measured by simpson diversity index , shannon - wiener diversity index and pielou evenness index . the results show that habitats range in a diminishing sequence of diversity indices from broadleaf forest , broadleaf bush , grassland bush to bamboo forest ; that altitude belts range from 600 - to - 1200 - m belt , under - 600 - m belt to 1200 - to - 1800 - m belt , and no longicorn beetles was found above 1800 m ; months from july , may , june to august , a diversity analysis shows that complicated habitats can hold higher biodiversity 结果表明，不同生境多样性指数从高到低的顺序是：阔叶林、阔叶灌丛、灌草丛、竹林；不同海拔多样性指数从高到低的顺序是： 600 ? 1200m区间、 600m以下区间、 1200 ? 1800m区间， 1800m以上区间暂未发现天牛科昆虫；不同月份多样性指数从高到低的顺序是： 7月、 5月、 6月、 8月。
3.
The results show that season has remarkable effect on component of cerambycidae community , which suggests that longicorn beetles occur much seasonally ; habitat type also has large effect on it , which reflects the dependence of longicorn beetles on host plant ; but altitude gradient has smaller effect on it , which is a result of the fact that longicorn beetles " larvae live all their life inside the stem of host plant and are seldom influenced by outside surroundings 结果表明，月份对天牛群落组成影响显著，天牛的发生具有明显的季节性；生境类型对天牛群落组成也有很大影响，体现了天牛对寄主植物的依赖性；海拔对天牛群落组成的影响较小，这与天牛幼虫终生生活在寄主植物茎内，受外界环境影响较小有关。
4.
In the second section , 186 species ( subspecies ) of longicorn beetles from maoershan natural reserve , which belong to 5 subfamilies 100 genera , are recorded . classification keys to subfamilies , genera and species are presented . among the species recorded , genus magninia clermont , species magninia tonkinea clermont and eutaenia tanoi breuning are all new to china and 13 species are not named yet 在所记录的天牛中，刺墨天牛属magniniaclermont为中国新记录属，越北刺墨天牛magniniatonkineaclermont和老挝带天牛eutaeniatanoibreuning为中国新记录种， 13种暂未定名。
