七星瓢虫

七星瓢虫卵黄原蛋白基因的表达mRNA的体外转译

Expression of vitellogenin gene in Coccinella septempunctata : in vitro translation of mRNA

北方平原七星瓢虫上山越夏行为的探讨

Study on summer surviving behaviour of Coccinella septempunctata in North China Plain

控制温度以调节越冬后七星瓢虫的产卵期

Timing oviposition period of the overwintered Coccinella septempunctata through temperature control

山区林地七星瓢虫成虫空间分布型的研究

Spatial pattern of adults of ladybird beetles on Oriental Arborvitae

七星瓢虫捕食棉蚜的功能反应

The Functional Response of Lady Bird Attacking on Aphids

抗蚜威和伏杀磷对七星瓢虫四龄幼虫24小时的相对毒力指数分别为0.1088和0.4056；

Those of the larvae at 24 h Were 0.1088 and 0.4056 , respectively ;

小蜜蜂和七星瓢虫非常可爱。

Bee and ladybird , very lovely .

七星瓢虫是红黑色的。

The ladybird is red and black .

你的家失火了，七星瓢虫妈妈！快点飞回家到你孩子身边去！

Your house is on fire , Mother Ladybird ! Fly away home to your children !

在雄性触角上观察到一钩状感觉器，长210μm，它表明七星瓢虫在触角上的性别两型性。

A single hook-shaped sensilla of 21.0 μ m in length was present on male antenna only .

这种现象说明七星瓢虫具有上山越夏和垂直迁飞行为。

This phenomenon indicates that Coccinella septempunctata survives the summer in upper mountain area and can migrate vertically .

七星瓢虫和异色瓢虫四变种成虫对茶蚜蜜露的搜索行为和蜜露的组分分析

Searching behaviour of Coccinella septempunctata and four varieties of Leis axyridis adults on tea aphid honeydew and analysis of honeydew component

结果如下：（1）七星瓢虫与六斑月瓢虫的卵大小相近，梭形，淡黄色，表面光滑。

The results were as follows : ( 1 ) egg : Their eggs had similar size , showing spindle-shaped , light yellow , surface smooth .

对下颚须的测量表明其左右末节的长度差异与七星瓢虫的性别之间有明显的相关性。

Measurements of the terminal segment of the maxillary palp showed a significant interaction between side ( left or right lateral ) and sex of the insect .

大白菜上七星瓢虫空间格局及抽样技术研究昨晚风向突然变了，随之而来的是一场瓢泼大雨。

Spatial Pattern of Ladybird Beetle on Chinese Cabbage and Its Sampling Techniques . The wind changed round suddenly last night and brought with it a heavy downpour .

与对照药剂久效磷相比：①抗蚜威、伏杀磷处理七星瓢虫卵120小时的相对毒力指数分别为0.0483和0.3187；

With the monocrotophos used as a reference , the indices of relative toxicity of pirimicarb and phosalone treated eggs at 120 h were 0.0483 and 0.3187 , respectively ;

主要捕食性天敌七星瓢虫、异色瓢虫成虫发生高峰期分别在8月中上旬和8月下旬，平均每株虫量七星瓢虫0.82头、异色瓢虫1.3头。

The maximum occurrence of the adult of C.septempunctata and H.axyridis was in the early mid-August and the late August , with an average density of0.82 and1.3 per plant , respectively .

田间试验表明：麦蚜天敌对小麦蚜虫的控制作用比较明显，其中七星瓢虫和草间小黑蛛为优势种，控制效果分别为28.5%和23.2%。

The experimental result showed that the natural enemy had obvious effect on the control of aphid in wheat field , especially for ladybug and spider , which control efficiency were 28.5 % and 23.2 % respectively .

室内研究了5个温度条件（15、20、25、30和35±0.5℃）下，七星瓢虫（Cocinelaseptempunctata）5个捕食虫态对棉蚜（Aphisgosypi）3个体积组的功能反应。

The functional response of five predator stages of Coccinella septempunctata towards three prey size groups of Aphis gossypii was determined at five temperatures ( 15 , 20 , 25 , 30 and 35 ± 0.5 ℃), in the laboratory .