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The life cycle of mayflies consists of four stages: egg, nymph, subimago, and imago.

蜉蝣的生命周期由四个阶段组成:卵,,亚成虫,成虫。

The results were:The main morphological difference were that the color of squama, median fascia, reniform stigma, orbicular stigma, the part between postmedian fascia and subterminal fascial and terminal hair on forewings, hindwings, terminal hair on hindwings, and the color of skin under squama on obdomen were black, and the color of pupa was also black, and the color of hair on dorsal thorax and obdomen were white.

结果表明: JBM和JBW的主要形态区别表现在成虫前翅上鳞片、中横线、肾状纹、环状纹、外横线及亚外缘线之间的部分、前翅缘毛、后翅、后翅缘毛、腹部鳞毛下的皮肤颜色以及体色等发生了黑化,成虫胸背毛颜色以及腹部毛颜色发生"白化"。

In addition,parasitism could induce supernumerary instars in some young B.mori larvae.

部分被寄生的低龄家蚕还出现了龄期增加的现象,即经历了六龄才结茧化

Hav in g the anatomy of the next developmental form outl in ed beneath the in tegument,as in certa in in sect pupae.

有覆盖物的具有在外皮下成形的下一进化形式的骨骼的,如某些昆虫的

And Arhopalus unicolor could beserved as the substitute host instead of the Monochamus alternatus Hope for thepropogation of Dastarcus helophoroides indoors.

其中松褐天牛幼虫和是花绒坚甲的最好自然寄主,黄粉甲是花绒坚甲相对较适合的替代寄主,有关人工食料饲育研究有待进一步深入。

The treatment of Bt rice pollen, especially at the concentration of 0.050g/ml, resulted in significantly higher larval mortality, longer developmental time, less body weight of early instar larvae, lower pupation and emergence rate, poorer cocoon quality, lesser number of eggs laid and more number of eggs unlaid per female.

Bt水稻花粉,特别在较高浓度处理下,可导致家蚕幼虫死亡率显著增高、取食量显著减少、发育历期显著延长、低龄幼虫体重明显降低、以及化率、蚕茧质量、羽化率和产卵量等显著下降,而腹中残余卵量显著增高等。

On every eve of Vesuvian eruption There are always people identifying unidentified flying object lingering Is that you Romeo on the arch of a meteor Wilt thou leave me so unsatisfied?

白乐天 你终于抱剑倒下了和衣倒在她长发如苔的石枕旁不如归去的凄鸣应和着晚祷的钟声小教堂藏经的密室里神父那呆滞的眼睛仍发着绿光多少世纪了地中海的咸涩没能风蚀那石屋的厚墙外面的人传说他早已闭关成了每当维苏威火山爆发前夜总有人目击维洛那上空有来历不明的物体盘旋是你吗罗密欧驾着流星的弧线难道你就这样离开我不给我些许满足?

The method was found to be simple, rapid, precise and accurate. It was suitable for the determination of fatty acids in worker bee larvae and honeybee pupae.

该方法简便、快速,且有较好的精密度和重复性、可靠性,适用于工蜂幼虫和中脂肪酸的测定。

Worker bee larvae and honeybee pupae samples were treated with wet grinding to destroy cells and extract fat. Then the extract was esterificated by using KOH-CH3OH solution and determined by GC.

采用湿法研磨工蜂幼虫和以破坏细胞和提取脂肪,提取液用氢氧化钾-甲醇进行甲脂化反应,上清液用于气相色谱分析。

Thus also the snake casts its slough, and the caterpillar its wormy coat, by an internal industry and expansion; for clothes are but our outmost cuticle and mortal coil.

蛇蜕皮的情形也是如此,同样的是虫的出茧。

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在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。

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