金龟子幼虫

To test the toxicity of spore-crystal formulation of HBF-1 specific to larvae of several main scarabaeid species in North China, Bacillus thuringiensis suspensions mixed with sterilized fine soil containing potato pieces were used for feeding the larvae. The LC50 of HBF-1 crystal-spore powder to Popillia quadriguttata, Anomala exoleta, A. mongolica, A.

以我国筛选出的对金龟科幼虫具有杀虫活性的HBF-1菌株为供试菌株，采用菌悬液与含有土豆丝的土壤混合饲喂幼虫的方法，测定了HBF-1菌株孢晶粉剂对华北地区主要金龟子幼虫的毒力，其敏感性依次为四纹丽金龟Popillia quadriguttata，黄褐丽金龟Anomala exoleta，蒙古丽金龟A.mongolica，铜绿丽金龟A.corpulenta和苹毛丽金龟Proagopertha lucidula，LC50为3.104，18.987，30.924，34.713和55.995 μg/g土。

The results showed that the mortality of the larvae caused by infection of Metarhizium anisopliae increased with the concentration of conidial suspension and the time after treatment.

结果表明，分离出的虫生真菌为金龟子绿僵菌菌株；随金龟子绿僵菌孢子浓度的升高，华北大黑鳃金龟幼虫的感病死亡率增加，在浓度为2.1×104、1.9×105、2.2×106、2.0×107、1.8×108个孢子/ml时，幼虫的累计死亡率分别为20 %、65 %、90 %、100 %和100 %。

We shrink from the thought of eating insects or singing birds,but we know that grasshoppers, blackbirds and larks, are served elsewhere.

我们不愿吃昆虫或欢唱的鸟类，但我们知道在其他地方金龟子的幼虫、蚱蜢、乌鸦、云雀是作为食品的。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。