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时间:2020-06-03
《麻楝蛀斑螟成虫的羽化节律及生殖行为.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、福建农林大学学报(自然科学版)第43卷第1期JournalofFujianA#cnltumandForestryUniversity(NaturalScienceEdition)2014年1月麻楝蛀斑螟成虫的羽化节律及生殖行为马涛,孙朝辉,李奕震,陈晓阳,温秀军(华南农业大学林学院,广东广州510642)摘要:在温度(25±1)℃,光暗周期L:D=14:1O(光期06:00开始,20:00结束),相对湿度RH=75%一80%的条件下,观察了麻楝蛀斑螟成虫的羽化与生殖行为.结果表明:成虫羽化率S5.4%,羽化期25d左右;羽化行为主要出现在暗期,日羽化高峰在2
2、0:00—23:00,占总羽化量的80.7%;雌、雄比例O.83:1.羽化后第2天达到性成熟,当天羽化的成虫未发生交配;交配发生在进入暗期5—8h,交配持续时间50-200win;随着日龄的增大,交配率降低,交配持续时间增长;交配后第2天开始产卵;雌、雄虫均未发现2次交配现象.交配雌虫平均产卵104粒,卵期7d左右,孵化率84.3%;未交配雌虫平均产卵l57粒,孵化率O.交配雌虫和雄虫的平均寿命为3.73和2.93d,未交配雌虫和雄虫的平均寿命为5.87和5.03d.关键词:麻楝蛀斑螟;羽化节律;交配;产卵中图分类号:$763.3文献标识码:A文章编号:16
3、71-5470(2014)01-00064)5EmergencerhythmandreproductionbehaviorofHypsipylarobusta(Lepidoptera:Pyralidae)MATao,SUNZhao-hui,LIYi-zhen,CHENXiao—yang,WENXiu-jun(CortegeofForestry,SouthChinaAgriculturalUnlvemity,Guangzhou,Guangdong510642,China)Abstract:Theaduhemergenceandreproductionbehav
4、iorofHypsipflarobu~tawerestudiedat(25±1)℃and75%一80%RHunder14L:IOD(1ightstartedat06:00,ended20:00).Theresultsshowedthattheemergencerateofadultwas85.4%,andemer-genceperiodwas25days;emergencebehaviormainlyhappenedindark,thedailyemergencepeakoccurredfrom20:00to23:00,whichcounted80.7%of
5、thetota1.Theratiooffemaletomalewas0.83:1.Theadultsbecamesexualmaturityonthe2nddayafleremergence.Theadultsdidnotmateonthe1stdayafteremergence.Thematingpeakoccurredin5to8hoursafterenteringsooto-phase.However,thematingdurationincreasedfrom50minto2OOwin.Thematingfrequencydecreasedwithi
6、ncreaseofadultsage,butthedurationofmatingbecamelonger.Theadultsbegantoovipositonthe2nddayaftermating.Boththefemaleandmalematedonlyonceintheirwholelife.Theovipesitionofthematedfemalewas104eggsonaverageandtheeggstagelastedfor7days.theratioofegfertilitywasabout84.3%.Theunmatedfemalesp
7、awned157egsonaverageandtheratioofegfertilitywas0.Onaveragethelifespanofmatedfemalewas3.73d,whilethematedmalewas2.93d.Meanwhile,thelifespanofunmatedfemalewas5.87d.whiletheunmatedmalewas5.03d.Keywords:Hyps~ylarobusta;emergencerhythm;mating;oviposition麻楝蛀斑螟(HypsipyIarobustaMoore),隶属鳞翅
8、目(Lepidoptera)螟蛾科(Pyralidi
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