青海隆务河流域云杉小蠹虫及小蜂科寄生性天敌物种调查与种群分析

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中图分类号：S763.7 文献标识码：A 文章编号：1006-0960（2025）01-0068-08

Species Surveys and Population Analyses of Bark Beetles and their Parasitic Natural Enemies from the Chalcididae in the Longwu River Basin of Qinghai Province

MA Minzhong1，HANFuzhong²，BAI Zezhen³

（1.Xibusha Forest Farm，Tongren Natural Resources and Forestry Grassland Bureau，Tongren，Qinghai， 811399，China;2.Maixiu Forest Farmin Huangnan Tibetan Autonomous Prefecture，Huangnan，Qinghai， 811300，China;3.KeyLaboratoryofForestProtection of National ForestryandGrassandAdministration， EcologyandNature ConservationInstitute，ChineseAcademyofForestry，Beijing，Oo91，China）

Abstract：By using typical ways of breeding，seduction，collection and species identification，providing morphological descriptions and zonation analyses of parasitic wasps and its population activity rhythms of the dominant natural enemies，Dinotiscus piceae Yang.The results indicate that nine bark beetle species threatening Qinghai spruce.Among them，three species like Ips nitidus Eggers，Ips shangrila Cognato &Sun andPseudips orientalis Wood& Yin，are dominant with diferent population densities throughout the Basin. Additionally，four parasitic wasp species were identified as Rhopalicus quadratus Ratzeburg，D.piceae Yang， Calosota longigasteris Yang and Roptroceurs ipius Yang in the Longwu River Basinof Qinghai province.R. quadratus in particular is widespread，belonged to Palaearctic，Sino-Japanand Nearctic，while theother wasp species are belonged to the Palearctic.The peak activity of D ：piceae occurs daily between 13：00 and 16：00，with populations reaching their annual peak between mid-June and mid-July.This study provides valuableinsights into the biodiversityand biology ofbark beetles and their parasitic wasps in the spruce forests of the Longwu River Basin.

Keywords：Longwu River Basin; bark beetles; Chalcididae;parasitic natural enemies

小蠹虫是鞘翅目Coleoptera，象甲科Curculionidae，小蠹亚科Scolytinae昆虫的总称，主要危害松属、云杉属、落叶松属等针叶树种。（剩余9859字）