蜻蜓目昆虫

The trailing roots of Water Hyacinth can provide a habitat for a variety of aquatic invertebrates including gastropods, chironomid larvae, dragonfly and damselfly larvae, various beetles, and heteropteran bugs.

凤眼蓝 的根可作为多种水生无脊椎动物的生境，包括腹足类动物、摇蚊科幼虫、蜻蜓和蟌的幼虫、多类甲虫及异翅目昆虫。

Any of various large insects of the order Odonata or suborder Anisoptera, having a long slender body and two pairs of narrow, net-veined wings that are usually held outstretched while the insect is at rest.

蜻蜓蜻蛉目或不均翅亚目中大型昆虫中一种，具有细长的身体，歇息时通常展开两对狭窄、有网状脉络的翅膀

Non-special primers were designed on the CO Ⅱ genes of Odonata. CO Ⅱ complete genes of 6 genera, including 8 species of 5 families in Anisoptera, had been sequenced and analyzed.

方法］设计蜻蜓目昆虫CO Ⅱ全基因的非特异性引物，获得差翅亚目5科6属8种共8条CO Ⅱ全序列。

Result The results show that A+T contents of CO Ⅱ genes of Libellulidae are lower (68.6%) in Insecta, which proves Odonata is an original group. Every sequence includes 2 Cys, which differs from the other groups of Insecta. Do not agree with the view of raising Macrominae into Macromidae. Agree with the views of putting both Aeshnidae and Cordulegastridae into Aeshnidea, and raising Gomphidae into a superfamily. Order of the evolution relationship of 5 families is: Gomphidae→Cordulegastridae→Aeshnidae→Corduliidae→Libellulidae.

结果］CO Ⅱ的A+T含量较低(68.6%)，说明蜻蜓目是一比较原始的类群；每条序列均含有2个半胱氨酸，这一点有别于其他类群昆虫；不支持将大蜻亚科上升为科的观点；支持将大蜓科和蜓科归入蜓总科，而将春蜓科上升为总科的观点；差翅亚目5科之间的进化关系由慢到快依次为：春蜓科→大蜓科→蜓科→伪蜻科→蜻科。

Damselfly is the common name for any of the predaceous insects comprising the suborder Zygoptera of the order Odonata, characterized by an elongated body, large multifaceted eyes that are widely separated, and two pairs of strong transparent wings, which at rest typically are held folded together above the abdomen or held slightly open above the abdomen.

蜻蛉 蜻蛉俗称&豆娘&，学名&Ischnura heterosticta&。&蜻蛉&是一个通用名称，指的是任何带有蜻蜓目均翅亚目特征的肉食昆虫。这种昆虫体型细长，复眼较大且间距较宽，同时长有强壮而透明的翅膀——典型特征为折叠在腹部之上或在腹上微微张开。

The trailing roots of Water Hyacinth can provide a habitat for a variety of aquatic invertebrates including gastropods, chironomid larvae, dragonfly and damselfly larvae, various beetles, and heteropteran bugs.

凤眼蓝*/蔓生植物凤眼蓝的根可作为多种水生无脊椎动物的生境，包括腹足类动物、摇蚊科幼虫、蜻蜓和蟌的幼虫、多类甲虫及异翅目昆虫。

Based on the investigation of dragonflies in Laoshan area of Nanjing City from 2005 to 2007, the primary results showed that there were 30 species, belonging to 21 genera, 6 families and 2 suborders , with 7 species recorded in Jiangsu Province for the first time.

我们于2005年～2007年对南京老山地区蜻蜓目昆虫进行了调查研究，通过对采集标本的鉴定和分类，初步确定南京老山地区蜻蜓目昆虫有2亚目6科21属30种，其中7种是江苏省新记录。

An order of insects including: lacewings; antlions; dobsonflies; alderflies; fishflies; mantispids; spongeflies.

昆虫的一个目；包含草蜻蛉；蚁狮；蛇蜻蜓；蜻蜓科昆虫；鱼蛉；螳蛉；水蛉。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。