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亮莫花金龟的雄虫描述(鞘翅目:金龟总科:花金龟科)DESCRIPTIONOFTHEMALEOFMOSERIANANITIDAMA(Coleoptera:Scarabaeoidea:Cetoniidae)¥Abstract:Inthispaperthe... 相似文献
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颏花金龟为捕食性,是花金龟亚科12族中食性最为特殊的类群,以其下唇的前颏极度扩大而得名。依据捕食对象及对应形态变异类型的不同,其可分为蚁食性和蚜食性两类。由于颏花金龟的食性异于其他种类花金龟的植食性,栖息环境也有极大的不同,故其口器适应进化出诸多形态类型。通过比较颏花金龟、花金龟亚科其他种类、其他植食性金龟(丽金龟和犀金龟两个亚科为代表)以及典型肉食性甲虫口器的形态,对颏花金龟口器特殊结构及功能进行了分析,并初步探索了取食机制及颏花金龟的生存策略。 相似文献
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唇花金金属TrigonophorusHope全世界已记载12种,8种产于中国,包括本文记述的1个新种,舌唇花金龟Trigongphorusligularis和1个新纪录种。 相似文献
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白星花金龟捕食落叶松毛虫蛹 总被引:3,自引:0,他引:3
白星花金龟Potosia brevitarsis Lewis属鞘翅目金龟甲科的一种杂食性昆虫。近年来作者在对落叶松毛虫的调查中发现,白星花金龟对该害虫种群数量的调控起着不可忽视的作用。 相似文献
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[目的]根据新疆气候特点和白星花金龟Protaetia brevitarsis Lewis生物学特性,探究在新疆人工繁育白星花金龟的可行性及潜力,以期为白星花金龟在新疆的人工繁殖和转化利用畜禽粪便提供科学依据.[方法]以牛粪为繁育基质,在适宜季节分别在室内外保育白星花金龟的蛹及作为成虫产卵基质,最终统计比较室内外成虫的羽化及产卵情况.[结果]室外露天条件更利于白星花金龟的羽化,老熟幼虫做土室26 d后羽化出成虫,比室内及室外棚下处理提前4d.在化蛹30d后进入羽化高峰期,持续13d,羽化率83%.成虫雌雄比接近1∶1,雌虫羽化时间早于雄虫1-3 d.白星花金龟成虫室内外产卵量差异不显著(P<0.05),室内单雌产卵量109.80粒,室外105.94粒,成虫羽化后30-35 d进入产卵高峰期,第60天室内外成虫产卵量显著下降(P<0.05),甚至不产卵.[结论]白星花金龟规模化人工繁育在新疆是可行性的,在室外自然条件和室内控温条件下白星花金龟繁育的效果差异不显著. 相似文献
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<正> 白星花金龟Potosia(Liocola)brevitarsis Lewis近年来为害玉米较严重,作者于1983-1985年对该虫进行了初步观察。此虫在天津地区每年发生一代,以老熟成虫越冬。各虫态平均历期:卵11天;幼虫一龄9天,二龄13天,三龄280天,共计302天;成虫寿命45天,雌虫产卵前期5天。成虫白天活动,取食、交配,飞翔能力很强,稍受惊立即飞走,雨天停止活动。卵产 相似文献
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白星花金龟成虫肠道细菌的分离鉴定 总被引:1,自引:0,他引:1
目的自星花金龟是我国北方常见腐食性昆虫,为了利用其腐食性行为转化处理有机垃圾、畜禽粪便及农作物秸杆等农业有机废弃物资源,并探索其中肠消化的微生态机制,而对其肠道细菌进行系统研究。方法从白星花金龟成虫肠道中无菌操作分离获得5株细菌,对其菌体形态、培养性状、染色反应、生理生化反应等进行鉴定及数量测定。结果白星花金龟成虫肠道的5个细菌菌株分别属于气球菌属(Aerococcus)、短状杆菌属(Brachybacterium)、棍状杆菌属(Clavibacter)、李斯特菌属(Listeria)、皮杆菌属(Dermabacter),以皮杆菌属和棍状杆菌属数量最多,分别为1.3×10^7和1.0×10^7;其次为短状杆菌属和气球菌属,分别为8×10^6和5×10^6;李斯特菌属数量最少,为7×10^5。结论各菌株之间细菌数量存在明显差异,以皮杆菌属细菌数量最多,分离未获得真菌和放线菌。 相似文献
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烟蚜及其捕食性天敌草间小黑蛛种群空间结构分析 总被引:1,自引:0,他引:1
采用地统计学原理和方法,拟合了不同时期烟蚜种群及其捕食性天敌草间小黑蛛种群的空间结构模型,分析了其空间关系.结果表明,不同时期烟蚜种群的空间结构模型均为球型,空间格局呈聚集型分布,空间相关距离在2.0252~4.1495m之间,异质系数为10281.36~300216.30,空间依赖程度为12176.81~303433.70;不同时期草间小黑蛛种群的空间结构模型也均为球型,空间格局呈聚集型分布,空间相关距离在3.7328~4.8983m之间,异质系数为1.4482~4.4134,空间依赖程度为1.6941~5.8167.该结果和方法可用于监测烟田目标害虫的时空格局动态. 相似文献
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Attempts to test experimentally the theory of olfactory attraction to host plants gave negative results, and more conclusive evidence was sought by recording the behaviour of host-finding migrants in the field. The first of three occasions when the natural alighting rate was high enough for comparative purposes was an autumn migration dominated by Myzus persicae returning to its specific overwintering host, the peach tree.
The proportion of M. persicae gynoparae among all aphids caught alighting on a spindle tree, where persicae does not overwinter, was as high as on peach. The much heavier accumulation of migrants on the peach was evidently due, not to their differential alightment, but to their differential rate of departure, with a longer average stay on the peach. The proportion of persicae gynoparae was smaller in catches on transparent sticky traps than among alighters on the trees, and they avoided alighting on brussels sprout plants more often than on peach. Only a fraction of those that approached the plants alighted, even on peach; and only a small fraction of those that did alight, stayed, even on peach.
There was appreciable colonization of spindle and sprouts by the M. persicae gynoparae and some 'wasted' oviposition by their progeny on spindle. After the migration was over the peach leaves entered the last stages of senescence before the spindle leaves, and persicae gynoparae (no longer able to fly) that were given access to both at that time, settled preferentially on spindle. The distribution of males created the impression that they were less host-specific than gynoparae. 相似文献
The proportion of M. persicae gynoparae among all aphids caught alighting on a spindle tree, where persicae does not overwinter, was as high as on peach. The much heavier accumulation of migrants on the peach was evidently due, not to their differential alightment, but to their differential rate of departure, with a longer average stay on the peach. The proportion of persicae gynoparae was smaller in catches on transparent sticky traps than among alighters on the trees, and they avoided alighting on brussels sprout plants more often than on peach. Only a fraction of those that approached the plants alighted, even on peach; and only a small fraction of those that did alight, stayed, even on peach.
There was appreciable colonization of spindle and sprouts by the M. persicae gynoparae and some 'wasted' oviposition by their progeny on spindle. After the migration was over the peach leaves entered the last stages of senescence before the spindle leaves, and persicae gynoparae (no longer able to fly) that were given access to both at that time, settled preferentially on spindle. The distribution of males created the impression that they were less host-specific than gynoparae. 相似文献
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烟蚜为害的经济损失研究 总被引:10,自引:0,他引:10
陕西渭北烟草种植区迁飞到烟田的蚜虫有6种,但只有桃蚜Myzus persicae(Sulzer)能够建立种群,造成为害。从烟草旺长开始,按烟株上蚜量和蚜虫分泌蜜露,引起霉菌滋生,污染叶面积的比例分为0、I、II、III、IV级。以未受蚜害的0级为对照,受蚜害的I、II、III、IV级的中上等烟下降分别为6.93%、13.05%、28.51%和30.94%,经济损失率分别为9.86%、23.81%、36.12%和39.59%。化学成分分析表明:I、II、III和IV级烟叶的烟碱含量分别降低10.61%、19.29%、10.61%和25.40%,还原糖分别降低15.04%、19.23%、40.98%和44.86%,蛋白质含量分别提高16.17%、31.99%、37.02%和38.72%。这就表明桃蚜为害既影响烤烟的外观质量、又影响内在品质。1头蚜虫经济损失率=0.0695%。 相似文献
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中国花金龟科一新种记述(鞘翅目:金龟总科) 总被引:1,自引:0,他引:1
本文记述花金龟科背角花金龟属(Neophaedimus)一新种,标本采自我国江苏、浙江。模式标本保存在中国科学院动物研究所。 栗色背角花金龟Neophaedimus castaneus新种 体型较狭长,光亮,沥褐或沥红色,前胸背板无黄斑(图1),臀板、腹面和腿节内侧多是沥红色。 相似文献
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A NEW SPECIES OF APHIS L. FROM AUSTRALIA (HOMOPTERA: APHIDIDAE) 总被引:1,自引:1,他引:0
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多种植物提取物对桃蚜和萝卜蚜的拒食活性研究 总被引:5,自引:0,他引:5
采用改进的蜜露色斑法 ,测试 34种植物乙醇提取物 (0 0 1g干重·mL-1,0 0 1gDW·mL-1)和几种天然源药剂对桃蚜Myzuspersicae(Sulzer)和萝卜蚜Lipaphiserysimi(Kaltenbach)取食的影响。结果表明 ,白蝴蝶Syngonium podophyllumSchott.、苍耳XanthiumsibiricumPrtr.etWidd、白花非洲山毛豆Tephrosiavo gelliHook .的提取物对两种蚜虫的活性均较高 ,2 4h对桃蚜的拒食率分别达 0 6 82、0 6 2 9和 0 80 6 ,对萝卜蚜的拒食率分别为 0 4 0 5、0 370和 0 383,与对照之间差异极显著 ;油茶Camelliaoleifera和花椒Zanthoxylumschinifolium的提取物拒食作用亦较强 ,2 4h对桃蚜的拒食率分别为 0 5 5 2和 0 5 14 ,对萝卜蚜的拒食率分别为 0 5 70和 0 5 18。三种药剂 (0 3%印楝素乳油、鱼藤酮精、机油乳剂 )在所测试的浓度对两种蚜虫的拒食率均达 0 719以上 ,拒食效果显著。 相似文献
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